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Inorganic Reactions and Methods Volume 17 Oligomerization and Polymerization Formation of Intercalation Compounds Founding Editor J.J. Zuckerman Editor A.P. Hagen 8 WILEY-VCH

Volume 17 - Startseite...Silane High Polymers. in Boron-Nitrogen Systems. Synthesis of Ring Compounds Borazines and Related Compounds. Coordinately Saturated B-N Rings. Factors Affecting

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Page 1: Volume 17 - Startseite...Silane High Polymers. in Boron-Nitrogen Systems. Synthesis of Ring Compounds Borazines and Related Compounds. Coordinately Saturated B-N Rings. Factors Affecting

Inorganic Reactions and Methods

Volume 17 Oligomerization and Polymerization Formation of Intercalation Compounds

Founding Editor

J.J. Zuckerman

Editor

A.P. Hagen

8 WILEY-VCH

Page 2: Volume 17 - Startseite...Silane High Polymers. in Boron-Nitrogen Systems. Synthesis of Ring Compounds Borazines and Related Compounds. Coordinately Saturated B-N Rings. Factors Affecting
Page 3: Volume 17 - Startseite...Silane High Polymers. in Boron-Nitrogen Systems. Synthesis of Ring Compounds Borazines and Related Compounds. Coordinately Saturated B-N Rings. Factors Affecting

Inorganic Reactions and Methods

Volume 17

Page 4: Volume 17 - Startseite...Silane High Polymers. in Boron-Nitrogen Systems. Synthesis of Ring Compounds Borazines and Related Compounds. Coordinately Saturated B-N Rings. Factors Affecting

Inorganic Reactions and Methods

Editor

Professor A.P. Hagen Department of Chemistry The University of Oklahoma Norman, Oklahoma 73019

Editorial Advisory Board

Professor N. Bartlett Department of Chemistry University of California at Berkeley Berkeley, California 94720

Professor F.A. Cotton Department of Chemistry Texas A&M University College Station, Texas 77840

Professor E.O. Fischer Anorganisch-chemisches Laboratorium

D-8046 Garching Lichtenbergestrasse 4 Federal Republic of Germany

Professor P. Hagenmuller Laboratoire de Chemie du Solide du

351 cours de la Liberation F-33405 Talence France

Professor M.F. Lappert The Chemical Laboratory University of Sussex Falmer, Brighton, BN1 9A3 England

der Technischen UniversitM

C.N.R.S.

Professor A.G. MacDiarmid Department of Chemistry University of Pennsylvania Philadelphia, Pennsylvania 191 74

Professor M. Schmidt lnstitut fur Anorganische Chemie der

Universitat D-8700 Wurzburg Am Hubland Federal Republic of Germany

Professor H. Taube Department of Chemistry Stanford University Stanford, California 94305

Professor L.M. Venanzi Laboratorium fur Anorganische Chemie

der ETH CH-80006 Zurich Universitatsstrasse 5 Switzerland

Professor Sir Geoffrey Wilkinson, F.R.S. Department of Chemistry Imperial College South Kensington London, SW7 2AY England

@ 1990 VCH Publishers, Inc , New York

Distribution: VCH Verlagsgesellschafi mbH, P.O. Box 1260/1280, D-6940 Weinheim, Federal Republic of Germany USA and Canada: VCH Publishers, Inc., 303 N.W. 12th Avenue, Deerfield Beach, FL 33442-1705, USA

Page 5: Volume 17 - Startseite...Silane High Polymers. in Boron-Nitrogen Systems. Synthesis of Ring Compounds Borazines and Related Compounds. Coordinately Saturated B-N Rings. Factors Affecting

Inorganic Reactions and Methods

Volume 17 Oligomerization and Polymerization Formation of Intercalation Compounds

Founding Editor

J.J. Zuckerman

Editor

A.P. Hagen

8 WILEY-VCH

Page 6: Volume 17 - Startseite...Silane High Polymers. in Boron-Nitrogen Systems. Synthesis of Ring Compounds Borazines and Related Compounds. Coordinately Saturated B-N Rings. Factors Affecting

@ 1990 VCH Publishers, Inc.

This work is subject to copyright.

All rights are reserved, whether the whole or part of the material is concerned, specifically those of translation, reprinting, re-use of illustrations, broadcasting, reproduction by photo- copying machine or similar means, and storage in data banks.

Authorization to photocopy items for internal or personal use, or the internal or personal use of specific clients, is granted by VCH Publishers, Inc. for libaries and other users registered with the Copyright Clearance Center (CCC) Transactional Reporting Service, provided that the base fee of $1.00 per copy, plus $0.25 per page is paid directly to CCC, 27 Congress Street, Salem, MA 01 970.

Registered names, trademarks, etc. used in this book, even when not specifically marked as such, are not to be considered unprotected by law.

ISBN 0-471-18667-8

ISBN 3-527-26275-X VCH Verlagsgesellschaft

Page 7: Volume 17 - Startseite...Silane High Polymers. in Boron-Nitrogen Systems. Synthesis of Ring Compounds Borazines and Related Compounds. Coordinately Saturated B-N Rings. Factors Affecting

Contents of Volume 17

How to Use this Book Preface to the Series Editorial Consultants to the Series Contributors to Volume 17

15.

15.1.

15.1 .l. 15.1.1.1. 15.1.1.2. 15.1.1.3. 15.1.1.3.1.

15.1.1.3.2. 15.1.1.3.3.

15.1.1.3.4.

15.1.2.

15.1.2.1.

15.1.2.2.

15.1.3.

15.1.3.1. 15.1.3.2.

15.1.3.2.1. 15.1.3.2.2.

Oligomerization and Polymerization

Introduction

Definitions and Scope. Definitions of Oligomers and Polymers. General Synthesis Methods. Scope.

Small-Ring Systems-Examples of Synthesis. Cag es-Exam p I es of Synthesis. Short C hai ns-Exam ples of Synthesis. Long Chains-Examples of Synthesis.

Characteristic Differences Between Small and Large Molecules as Related to Their Synthesis.

Special Characteristics of Small Cyclic and Linear Molecules. Special Characteristics of Long-Chain Molecu I es.

C hai n-C h ai n , C h a i n-R i ng and R i ng-R i ng Equilibria.

Bond Lability in Inorganic Systems. Some Important Relationships Based on Theory.

The Chain Population. The Ring Population and Network Macromolecules.

1

7 12

13

15

17

17

18

19 20

21 22

24

V

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vi Contents of Volume 17 ~~

15.1 Introduction

15.1.3.3. Scrambling in Inorganic Systems. 15.1.3.3.1. All-Neso Systems. 15.1.3.3.2.

15.1.3.3.3. Exchange of Segments Between

15.1.3.3.4.

Oligomers and Polymers in QZ,-QT, Systems with Z Bridging.

C yc I ic M o I ecu les. Chains and Rings from Scrambling Between Two Kinds of Central Moieties.

15.2.

15.2.1. 15.2.2.

15.2.2.1. 15.2.2.2. 15.2.2.2.1. 15.2.2.2.2.

15.2.2.2.3. 15.2.2.2.4.

15.2.2.2.5.

15.2.2.2.6.

15.2.2.2.7. 15.2.2.2.8. 15.2.2.2.9.

15.2.2.2.10.

15.2.2.2.11.

15.2.2.2.12. 15.2.2.2.13.

15.2.2.2.14.

Ring-Ring and Ring-Polymer Interconversions

Introduction. lnterconversion of Sulfur or Selenium Rings and Chains

Theory . Ex pe r i mental Techniques

Viscosity Measurements. Ultrasonic Absorption in Liquid Selenium. Quenching Experiments. Diamagnetic Suscepti bi I ity Measurements. Paramagnetic Suscepti bi I i ty Measurements. Electron Spin Resonance Absorption (ESR). Optical Absorption. Vibrational Spectroscopy of Sulfur. Nuclear Magnetic Resonance (NMR) Measurements on Selenium. Dielectric Constant Measurements of Su Ifu r. Specific Heat Measurements on Sulfur and Selenium. Density Measurements. Thermal Conductivity in Liquid Selenium. Electrical Conductivity of Sulfur.

26 26

31

33

34

37

37

39 39 46 46

47 47

48

48

50 50 51

51

51

52 52

53 53

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Contents of Volume 17 vi i

15.2.3.

15.2.3.1. 15.2.3.2. 15.2.3.3. 15.2.3.4. 15.2.3.5. 15.2.4. 15.2.4.1.

15.2.4.1 .l. 15.2.4.1.2. 15.2.4.1.3. 15.2.4.1.4. 15.2.4.2. 15.2.4.2.1. 15.2.4.2.2. 15.2.4.2.3. 15.2.4.3.

15.2.4.4. 15.2.4.5. 15.2.5. 15.2.5.1. 15.2.5.1 .l. 15.2.5.1.2. 15.2.5.2.

15.2.5.3.

15.2.5.4.

15.2.5.5.

15.2.5.5.1. 15.2.5.5.2. 15.2.6

15.2.6.1. 15.2.6.2. 15.2.6.3. 15.2.6.4.

15.2.7.

In Oligomeric Catenates of P, As, Sb and Bi.

General Trends. Phosphorus. Arsenic. Antimony. Stabilized Rings and Chains.

Formation of Cyclic Silicon-Silicon Systems.

In Silicon-Silicon Systems.

Perarylcyclosilanes. Permethylcyclosilanes. Other Peralkylcyclosilanes. A I ky I a r y lcycl osi I anes .

Reactions of Cyclosilanes. Substitutional Reactions. Ring-Cleavage Reactions. Photo1 ysis.

Ring-Ring and Chain-Ring Interconversion. Cage Polysilanes. Silane High Polymers.

in Boron-Nitrogen Systems. Synthesis of Ring Compounds

Borazines and Related Compounds. Coordinately Saturated B-N Rings.

Factors Affecting Stability of Ring Species. Preparation of Linear Boron-Nitrogen 01 i gomers. lnterconversions in Boron-Nitrogen Systems. Preparation of Boro n-N it r og e n Polymers.

Linear Boron-Nitrogen Chains. Polycyclic Chains.

in Boron-Oxygen and Boron-Sulfur Systems

An ion ic Boron-Oxyg e n Compounds. Molecular Boron-Oxygen Species. Boron-Su Ifu r Com pou nds. Ring-ring and Ring-chain interconversions.

in Cage Polyboranes and Carboranes.

53 53 54 55 58 59 61

61 61 62 66 66 69 69 71 74

75 79 80 83 83 83 86

87

88

89

90 90 91

93 93 94 95

96 97

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viii Contents of Volume 17

15.2

15.2.7.1.

15.2.7.2.

15.2.7.3.

15.2.8. 15.2.8.1. 15.2.8.2. 15.2.8.3.

15.2.8.4.

15.2.8.5. 15.2.9.

15.2.9.1. 15.2.9.2.

15.2.9.3.

15.2.9.4. 15.2.9.5.

15.2.9.6.

15.2.1 0. 15.2.10.1.

15.2.10.2. 15.2.10.3. 15.2.10.4. 15.2.1 1.

15.2.1 1 . I . 15.2.11.2.

15.2.1 1.3.

15.2.1 1.4.

Ring-Ring and Ring-Polymer Interconversions

Polyborane Oligomers and Polymers; Syntheses. Preparation of Carborane-Siloxane Polymers. Preparation of Other Carborane- Incorporated Inorganic Polymers.

Formation of Cyclic Oligomers. Cyclosiloxane Structural Diversity. Ring-Ring Equilibration of Cyc Ios i loxanes. R i ng-C hai n Eq u i I i b rat i o n : Polymerization of Cyclosiloxanes. End-Capping Reactions.

in Silicon-Nitrogen and Silicon-Sulfur Systems.

Si I icon-Oxygen Systems

Silicon-Nitrogen Syntheses. Si I icon-N i t rogen Ri ng-Ri ng I nterconversions. Cyclic Silicon-Nitrogen Oligomers Polymerization. Si I icon-Su If u r Syntheses. Si I icon-Su If u r Ri ng-Ri ng Interconversions. Cyclic Si I icon-Sulfu r 01 igomer Polymerization.

i n Phosphor us-Oxyg e n Systems Reorganized Mixtures of Chains and Rings. Preparation of Cyclic Polymers. Chain Oligomers and Macromolecules. Related Mixed Systems.

Halocyclophosphazene Polymerization Organocyclophosphazenes: Ring-Ring and Ring-Polymer Interconversions Mechanisms and Thermodynamics of Phosphazene Equilibrations. Polyorganophosphazenes via the Reactions of Polydihalophosphazenes.

in Phosphorus-Nitrogen Oligomers and Polymers

98

99

103 105 107 108

112

114 115

116 116

118

137 139

142

142 143

144 145 148 150

151 151

154

159

161

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Contents of Volume 17 ix ~

15.2.12. 15.2.12.1. 15.2.12.2.

15.2.12.3. 15.2.12.4. 15.2.12.5.

15.2.12.6.

15.2.12.7. 15.2.12.8.

15.2.12.9.

15.2.1 2.10.

15.2.13.

15.2.13.1. 15.2.13.2. 15.2.13.2.1. 15.2.13.2.2.

15.2.13.2.3. 15.2.13.3. 15.2.13.3.1. 15.2.13.3.2. 15.2.13.3.3. 15.2.13.3.4. 15.2.13.3.5.

15.2.13.3.6.

15.2.13.4. 15.2.13.5.

15.2.13.6.

15.2.14. 15.2.14.1. 15.2.14.2.

in Su Ifur-Ni trogen 01 igomers and Polymers Formation of the Monomer SN Formation of Cyclic Oligomers (SN), and (SN),. Polymerization of (SN), to (SN),. Halogenated Derivatives of (SN),. Formation of Cyclic Oligomers (NSX). (X = CI, F; n = 3,4). Formation of the Cyclic Oligomers

Formation of the Cyclic Oligomer (SNH),. Formation of Thionyl lmide Polymers (HNSO),. S-N Oligomers with Terminal Organic Groups. S-Polymers with Organic Groups in the Backbone.

Polymers Containing Metal-Oxygen and Metal-Carbon Bonds

“S(O)XI,.

Introduction. M-C-Containing Polymers

Metallocenes. Polycarbosilanes, Polysilarylenes, Polycarbosiloxanes and Po I y (ca r bo rane-s i I oxanes) . Other Metallorganic Compounds.

M-0-Contai n i ng Polymers In organic Po I ys i I icas. Po I y m eta1 Ios i I oxan es. Pol y(si I yl arylene si loxanes). Polyarylsilsesquioxanes. Polymetal Phosphinates and Polyphosphonatolanes Miscellaneous.

0 II

M-0-C-Containing Polymers. M-0-R (Pol yet her)-Con tai n i ng Polymers. M-0-N-Contain i ng Polymers (Polyamidoximes and Polyoximes).

Introduction. General Synthetic Routes.

Coordination Polymers

172 172

173 174 175

176

177 178

178

179

180

180 180 181 181

184 185 187 187 187 188 190

190 191

191

192

193 194 194 194

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X Contents of Volume 17

15.2

15.2.14.3. 15.2.14.4. 15.2.14.5. 15.2.14.5.1. 15.2.14.5.2.

15.2.14.5.3. 15.2.14.5.4. 15.2.14.5.5.

16.

16.1.

16.2.

16.2.1. 16.2.2.

16.2.2.1. 16.2.2.2. 16.2.2.3. 16.2.3.

16.2.3.1.

16.2.3.2.

16.3.

16.3.1. 16.3.1.1.

16.3.1.2. 16.3.1.3.

Ring-Ring and Ring-Polymer lnterconversions

lonomers. Pro per ty-St r uct u re P r i nci p I es . Selected Polymers.

Metal Phosphinates. Platinum and Pd Coordination Polymers. Uranyl Ion Complexation. Bis-P-diketone-Based Polymers. Bisthiopiocol inam ide-Based Polymers.

Formation of Intercalation Compounds

Introduction

The Formation of Clathrates

Definitions The Formation of Clathrates Having a Water Host Lattice

Clathrates of the Gas Hydrate Type. Clathrates of the Liquid Hydrate Type Other Clathrate Hydrates.

The Formation of Clathrates Having a Silicon, Germanium and Tin Host Lattice

The Formation of Silicon and Germanium Clathrates by Thermal Decomposition of Silicides and Germanides. The Formation of Silicon, Germanium and Tin Clathrates from the Elements.

The Formation of Tunnel Structures

Ion Exchange Zeolites with Intersecting Tunnel Frameworks. Pyrochlores A, xxM20, A2M,0,, Structure and lntergrowths with Pyrochlores.

200 200 201 20 1

202 203 204

205

207

208

209

209

210 21 1 214 215

219

22 1

222

223 223

223 226

228

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Contents of Volume 17 xi

16.3.1.4.

16.3.1.5.

6.3.1 -6. 6.3.2. 6.3.2.1. 6.3.2.2.

6.3.2.2.1. 16.3.2.2.2. 16.3.2.3. 16.3.2.3.1. 16.3.2.3.2.

16.3.2.3.3.

16.4.

16.4.1. 16.4.2.

16.4.2.1. 16.4.2.1.1. 16.4.2.1.2. 16.4.2.1.3. 16.4.2.1.4. 16.4.2.1 -5. 16.4.2.2. 16.4.2.2.1.

16.4.2.2.2.

16.4.2.3.

16.4.2.4.

16.4.2.4.1

16.4.2.4.2.

Alkali Antimonates K,Sb,O,, and

Ammonium and Potassium 12 Molybdophosphates A3P04Mo,2036. Structures with Parallel Tunnels

Rate of Growth of Deposit. Mechanism of Electrochemical Preparation of Tungsten Bronzes

Nature of the Reduced Species. Reactions at the Electrodes.

Experimental Procedure and Data the Electrolyte Cell. Effect of the Melt Composition and Temperature. Examples of Oxides with Tunnel Structures Obtained by Molten Salt Electrolysis.

KC$ b501 4'

by Electrolysis

The Formation of Sheet Structures

In trod ucti on. Graphite and Boron Nitride Intercalation Compounds

Hal ides. Oxyhalides. Oxides. Acids. Halogens and Interhalogens.

Synthesis of Graphite and Carbon Intercalation Compounds Containing One metal. Graphite Intercalation Compounds Containing Two Metals (Ternary Com pou nds).

Electron Acceptors

Electron Donors

Mixed Metal-Molecule-Graphite Ternaries. Al ka I i-M etal-Hydrogen42 rap h i te Ternaries.

Hydrogenation of the binary phases MC, and MC,, (M = K, Rb, Cs). Intercalation of Alkali-Metal Hydrides into Graphite.

228

228 229 229 230

230 230 23 1 232 232

232

234

237

237

238 238 238 243 244 245 246 247

247

25 1

255

257

257

257

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xii Contents of Volume 17

16.4

16.4.2.4.3.

16.4.2.4.4.

16.4.2.5. 16.4.2.5.1.

16.4.2.5.2. 16.4.2.5.3. 16.4.2.5.4. 16.4.2.6. 16.4.2.6.1.

16.4.2.6.2. 16.4.2.6.3.

16.4.2.7. 16.4.2.7.1. 16.4.2.7.2. 16.4.2.7.3. 16.4.2.8. 16.4.2.8.1.

16.4.2.8.2. 16.4.2.8.3. 16.4.3. 16.4.3.1. 16.4.3.2. 16.4.3.3. 16.4.3.4. 16.4.3.5.

16.4.3.6.

16.4.4. 16.4.5. 16.4.6. 16.4.7. 16.4.7.1. 16.4.7.2.

The Formation of Sheet Structures

Intercalation of Quaternary Compounds with Hydrogen and Two Alkali Metals into Graphite. Physiosorption of Hydrogen and Deuterium in the Second-Stage Compounds MC,,(M = K, Rb or Cs)

Definition and Nomenclature of Graphite Oxides. Preparation of Graphite Oxides. Reactivity of Graphite Oxides. Graphite Oxide Membranes.

Poly(monocarbon monofluoride),

Pol y (d icar bon monof I uo r i de) , (C,F) . Poly(tetracarbon monofluoride),

Residue and Surface Compounds Introduction and Definitions. Preparation of Residue Compounds. Preparation of Surface Compounds. Electrochemical Formation. Strengths and Limitations of the

Cathodic Reduction of Graphite. Anodic Oxidation of Graphite.

Graphite Oxides

Graphite Fluorides

(CF) n -

(C4F)n.

Electrochemical Technique.

Dichalcogenides Layered Dichalcogenides. Alkali-Metal intercalates. Electrochemical Formation Molecular Intercalates. Hydrated and Solvated Alkali-Metal Phases. Intercalation-Substitution Compounds and Ionic Mobility

Trichalcogenohypophosphates. Transition-Metal Oxyhalides. Lamellar Oxides. Lamellar Silicates and Related Materials.

Lamellar Silicates. lntercalation Products.

259

259 259

260 26 1 263 265 265

265 269

270 27 1 27 1 272 274 276

276 280 281 284 284 288 295 300

306

308 309 31 3 31 8 323 324 328

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Contents of Volume 17 xiii ~

16.4.8.

16.4.8.1.

16.4.8.2.

16.4.8.3. 16.4.8.4. 16.4.8.5.

16.4.8.6. 16.4.8.7.

The Chemical Reactivity of Low- Dimensional Solids

The Electronic Transfer and the Formation of Cationic Intercalation Compounds. Structural Charges Induced by Electronic Transfer. Strong Ion-Electron Coupling. Microdomains in MPS, Phases. Electronic Transfer and Ac Parameter Expansion. Acidobasic Topochemical Reactions. “Internal Surfaces” Grafting Chemistry.

List of Abbreviations Author Index Compound Index Subject Index

33 1

332

333 335 337

338 339

340

34 1 000 000 000

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How to Use this Book

1. Organization of Subject Matter

1.1, Logic of Subdivision and Add-on Chapters

This volume is part of a series that describes all of inorganic reaction chemistry. The contents are subdivided systematically and so are the contents of the entire series: Using the periodic system as a correlative device, it is shown how bonds between pairs of elements can be made. Treatment begins with hydrogen making a bond to itself in H, and proceeds according to the periodic table with the bonds formed by hydrogen to the halogens, the groups headed by oxygen, nitrogen, carbon, boron, beryllium and lithium, to the tran- sition and inner-transition metals and to the members of group zero. Next it is considered how the halogens form bonds among themselves and then to the elements of the main groups VI to I, the transition and inner-transition metals and the zero-group gases. The process repeats itself with descriptions of the members of each successive periodic group making bonds to all the remaining elements not yet treated until group zero is reached. At this point all actual as well as possible combinations have been covered.

The focus is on the primary formation of bonds, not on subsequent reac- tions of the products to form other bonds. These latter reactions are covered at the places where the formation of those bonds is described. Reactions in which atoms merely change their oxidation states are not included, nor are re- actions in which the same pairs of elements come together again in the prod- uct (for example, in metatheses or redistributions). Physical and spectroscopic properties or structural details of the products are not covered by the reaction volumes which are concerned with synthetic utility based on yield, economy of ingredients, purity of product, specificity, etc. The preparation of short-lived transient species is not described.

While in principle the systematization described above could suffice to deal with all the relevant material, there are other topics that inorganic chem- ists customarily identify as being useful in organizing reaction information and that do not fit into the scheme. These topics are the subject of eight additional chapters constituting the last four books of the series. These chapters are sys- tematic only within their own confines. Their inclusion is based on the best judgment of the Editorial Advisory Board as to what would be most useful currently as well as effective in guiding the future of inorganic reaction chem- istry.

xv

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xvi How to Use this Book

1.2. Use of Decimal Section Numbers

The organization of the material is readily apparent through the use of numbers and headings. Chapters are broken down into divisions, sections and subsections, which have short descriptive headings and are numbered accord- ing to the following scheme:

1. Major Heading 1.1. Chapter Heading 1.1.1. Division Heading l . l . l , l , Section Heading 1.1.1,l. 1. Subsection Heading

Further subdivision of a five-digit “slice” utilizes lower-case Roman numerals in parentheses: (i), (ii), (iii), etc. It is often found that as a consequence of the organization, cognate material is located in different chapters but in similarly numbered pieces, i.e., in parallel sections. Section numbers, rather than page numbers, are the key by which the material is accessed through the various in- dexes.

1.3. Building of Headings

1.3.1. Headings Forming Part of a Sentence

Most headings are sentence-fragment phrases which constitute sentences when combined. Usually a period signifies the end of a combined sentence. In order to reconstitute the context in which a heading is to be read, superior- rank titles are printed as running heads on each page. When the sentences are put together from their constituent parts, they describe the contents of the piece at hand. For an example, see 2.3 below.

1.3.2. Headings Forming Part of an Enumeration

For some material it is not useful to construct title sentences as described above. In these cases hierarchical lists, in which the topics are enumerated, are more appropriate. To inform the reader fully about the nature of the material being described, the headings of connected sections that are superior in hierar- chy always occur as running heads at the top of each page.

2. Access and Reference Tools

2.1. Plan of the Entire Series (Front Endpaper)

Printed on the inside of the front cover is a list, compiled from all 18 re- action volumes, of the major and chapter headings, that is, all headings that

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How to Use this Book xvii

are preceded by a one- or two-digit decimal section number. This list shows in which volumes the headings occur and highlights the contents of the volume that is at hand by means of a gray tint.

2.2. Contents of the Volume at Hand

All the headings, down to the title of the smallest decimal-numbered sub- section, are listed in the detailed table of contents of each volume. For each heading the table of contents shows the decimal section number by which it is preceded and the number of the page on which it is found. Beside the decimal section numbers, successive indentations reveal the hierarchy of the sections and thereby facilitate the comprehension of the phrase (or of the enumerative sequence) to which the headings of hierarchically successive sections combine. To reconstitute the context in which the heading of a section must be read to become meaningful, relevant headings of sections superior in hierarchy are re- peated at the top of every page of the table of contents. The repetitive occur- rences of these headings is indicated by the fact that position and page numbers are omitted.

2.3. Running Heads

In order to indicate the hierarchical position of a section, the top of every page of text shows the headings of up to three connected sections that are su- perior in hierarchy. These running heads provide the context within which the title of the section under discussion becomes meaningful. As an example, the page of Volume 1 on which section 1.4.9.1.3 “in the Production of Methanol” starts, carries the running heads:

1.4. The Formation of Bonds between Hydrogen and O,S,Se,Te,Po 1.4.9. by Industrial Processes 1.4.9.1. Involving Oxygen Compounds

whereby the phrase “in the Production of Methanol” is put into its proper perspective.

2.4. List of Abbreviations

Preceding the indexes there is a list of those abbreviations that are fre- quently used in the text of the volume at hand or in companion volumes. This list varies somewhat in length from volume to volume; that is, it becomes more comprehensive as new volumes are published.

Abbreviations that are used incidentally or have no general applicability are not included in the list but are explained at the place of occurrence in the text.

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xviii How to Use this Book

2.5. Author Index

The author index is compiled by computer from the lists of references. Thus it tells whose publications are cited and in that respect is comprehensive. It is not a list of authors, beyond those cited in the references, whose results are reported in the text. However, as the references cited are leading ones, consulting them, along with the use of appropriate works of the secondary lit- erature, will rapidly lead to the complete literature related to any particular subject covered.

Each entry in the author index refers the user to the appropriate section number.

2.6. Compound Index

The compound index lists individual, fully specified compositions of mat- ter that are mentioned in the text. It is an index of empirical formulas, ordered according to the following system: the elements within a given formula occur in alphabetical sequence except for C, or C and H if present, which always come first. Thus, the empirical formula

for Ti(SO,), is O,S,Ti

Be,CO, CBe,O, CsHBr, Br,CsH Al(HCO,), C,H,AlO,

BH, -NH, BH6N

The formulas themselves are ordered alphanumerically without exception; that is, the formulas listed above follow each other in the sequence BH,N, Br,CsH, CBe,O,, C,H,AlO,, O,S,Ti.

A compound index constructed by these principles tells whether a given compound is present. It cannot provide information about compound classes, for example, all aluminum derivatives or all compounds containing phos- phorus.

In order to open this route of access as well, the compound index is aug- mented by successively permuted versions of all empirical formulas. Thus the number of appearances that an empirical formula makes in the compound in- dex is equal to the number of elements it contains. As an example, C,H,AlO,, mentioned above, will appear as such and, at the appropriate positions in the alphanumeric sequence, as H3A109*C3, AlO,*C,H, and O,*C,H,Al. The as- terisk identifies a permuted formula and allows the original formula to be re- constructed by shifting to the front the elements that follow the asterisk.

Each nonpermuted formula is followed by linerarized structural formulas that indicate how the elements are combined in groups. They reveal the con- nectivity of the compounds underlying each empirical formula and serve to

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How to Use this Book xix

distinguish substances which are identical in composition but differ in the ar- rangement of elements (isomers). As an example, the empirical formula C,H *,O might be followed by the linearized structural formulas (CH3CH2),0, CH, (CH2),0CH3, (CH,),CHOCH,, CH,(CH,),OH, (CH,),CHCH,OH and CH, CH2(CH,)CHOH to identify the various ethers and alcohols that have the ele- ment count C,H,,O.

Each linearized structural formula is followed in a third column by key- words describing the context in which it is discussed and by the number($ of the section(s) in which it occurs.

2.7. Subject index

The subject index provides access to the text by way of methods, tech- niques, reaction types, apparatus, effects and other phenomena. Also, it lists compound classes such as organotin compounds or rare-earth hydrides which cannot be expressed by the empirical formulas of the compound index.

For multiple entries, additional keywords indicate contexts and thereby avoid the retrieval of information that is irrelevant to the user’s need.

Again, section numbers are used to direct the reader to those positions in the book where substantial information is to be found.

2.8. Periodic Table (Back Endpaper)

Reference to periodic groups avoids cumbersome enumerations. Section headings in the series employ the nomenclature.

Unfortunately, however, there is at the present time no general agreement on group designations. In fact, the scheme that is most widely used (combin- ing a group number with the letters A and B) is accompanied by two mutual- ly contradictory interpretations. Thus, titanium may be a group IVA or group IVB element depending on the school to which one adheres or the part of the world in which one resides.

In order to clarify the situation for the purposes of the series, a suitable labeled periodic table is printed on the inside back cover of each volume. All references to periodic group designations in the series refer to this scheme.

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Preface to the Series

Inorganic Reactions and Methods constitutes a closed-end series of books designed to present the state of the art of synthetic inorganic chemistry in an unprecedented manner. So far, access to knowledge in inorganic chemistry has been provided almost exclusively using the elements or classes of compounds as starting points. In the first 18 volumes of Inorganic Reactions and Methods, it is bond formation and type of reaction that form the basis of classification.

This new route of access has required new approaches. Rather than sew- ing together a collection of review articles, a framework has had to be designed that reflects the creative potential of the science and is hoped to stimulate its further development by identifying areas of research that are most likely to be fruitful.

The reaction volumes describe methods by which bonds between the ele- ments can be formed. The work opens with hydrogen making a bond to itself in H, and proceeds through the formation of bonds between hydrogen and the halogens, the groups headed by oxygen, nitrogen, carbon, boron, beryllium and lithium to the formation of bonds between hydrogen and the transition and inner-transition metals and elements of group zero. This pattern is repeat- ed across the periodic system until all possible combinations of the elements have been treated. This plan allows most reaction topics to be included in the sequence where appropriate. Reaction types that do not arise from the system- atics of the plan are brought together in the concluding chapters on oxidative addition and reductive elimination, insertions and their reverse, electron trans- fer and electrochemistry, photochemical and other energized reactions, oligo- merization and polymerization, inorganic and bioinorganic catalysis and the formation of intercalation compounds and ceramics.

The project has engaged a large number of the most able inorganic chem- ists as Editorial Advisors creating overall policy, as Editorial Consultants de- signing detailed plans for the subsections of the work, and as authors whose expertise has been crucial for the quality of the treatment. The conception of the series and the details of its technical realization were the subject of careful planning for several years. The distinguished chemists who form the Editorial Advisory Board have devoted themselves to this exercise, reflecting the great importance of the project.

It was a consequence of the systematics of the overall plan that publica- tion of a volume had to await delivery of its very last contribution. Thus was the defect side of the genius of the system revealed, as the excruciating process of extracting the rate-limiting manuscripts began. Intense editorial effort was

xx i

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xxii Preface to the Series

required in order to bring forth the work in a timely way. The production process had to be designed so that the insertion of new material was possible up to the very last stage, enabling authors to update their pieces with the lat- est developments. The publisher supported the cost of a computerized biblio- graphic search of the literature and a second one for updating.

Each contribution has been subjected to an intensive process of scientific and linguistic editing in order to homogenize the numerous individual pieces, as well as to provide the highest practicable density of information. This had several important consequences. First, virtually all semblances of the authors’ individual styles have been excised. Second, it was learned during the editorial process that greater economy of language could be achieved by dropping con- ventionally employed modifiers (such as very) and eliminating italics used for emphasis, quotation marks around nonquoted words, or parentheses around phrases, the result being a gain in clarity and readability. Because the series focuses on the chemistry rather than the chemical literature, the need to tell who has reported what, how and when can be considered of secondary impor- tance. This has made it possible to bring all sentences describing experiments into the present tense. Information on who published what is still to be found in the reference lists. A further consequence is that authors have been bur- dened neither with identifying leading practitioners, nor with attributing prior- ity for discovery, a job that taxes even the talents of professional historians of science. The authors’ task then devolved to one of describing inorganic chemi- cal reactions, with emphasis on synthetic utility, yield, economy, availability of starting materials, purity of product, specificity, side reactions, etc.

The elimination of the names of people from the text is by far the most controversial feature. Chemistry is plagued by the use of nondescriptive names in place of more expository terms. We have everything from Abegg’s rule, Adkin’s catalyst, Admiralty brass, Alfven number, the Amadori rearrange- ment and Adurssov oxidation to the Zdanovskii law, Zeeman effect, Zincke cleavage and Zinin reduction. Even well-practiced chemists cannot define these terms precisely except for their own areas of specialty, and no single source exists to serve as a guide. Despite these arguments, the attempt to replace names of people by more descriptive phrases was met in many cases by a warmly negative reaction by our colleague authors, notwithstanding the obvi- ous improvements wrought in terms of lucidity, freedom from obscurity and obfuscation and, especially, ease of access to information by the outsider or student.

Further steps toward universality are taken by the replacement of element and compound names wherever possible by symbols and formulas, and by adding to data in older units their recalculated SI equivalents. The usefulness of the reference sections has been increased by giving journal-title abbrevia- tions according to the Chemical Abstracts Service Source Index, by listing in each reference all of its authors and by accompanying references to patents and journals that may be difficult to access by their Chemical Abstracts cita-

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Preface to the Series xxiii

tions. Mathematical signs and common abbreviations are employed to help condense prose and a glossary of the latter is provided in each volume. Dan- gerous or potentially dangerous procedures are highlighted in safety notes printed in boldface type.

The organization of the material should become readily apparent from an examination of the headings listed in the table of contents. Combining the words constituting the headings, starting with the major heading (one digit) and continuing through the major chapter heading (two digits), division head- ing (three digits), section heading (four digits) to the subsection heading (five digits), reveals at once the subject of a “slice” of the plan. Each slice is a self- contained unit. It includes its own list of references and provides definitions of unusual terms that may be used in it. The reader, therefore, through the table of contents alone, can in most instances quickly reach the desired material and derive the information wanted.

In addition there is for each volume an author index (derived from the lists of references) and a subject index that lists compound classes, methods, techniques, apparatus, effects and other phenomena. An index of empirical formulas is also provided. Here in each formula the element symbols are ar- ranged in alphabetical order except that c, or C and H if present, always come first. Moreover, each empirical formula is permuted successively. Each permuted formula is placed in its alphabetical position and cross referenced to the original formula. Therefore, the number of appearances that an empirical formula makes in the index equals the number of its elements. By this proce- dure all compounds containing a given element come together in one place in the index. Each original empirical formula is followed by a linearized structur- al formula and keywords describing the context in which the compound is dis- cussed. All indexes refer the user to subsection rather than page number.

Because the choice of designations of groups in the periodic table is cur- rently in a state of flux, it was decided to conform to the practice of several leading inorganic texts. To avoid confusion an appropriately labeled periodic table is printed on the back endpaper.

From the nature of the work it is obvious that probably not more than two persons will ever read it entire: myself and the publisher’s copy editor, Dr. Lindsay S. Ardwin. She, as well as Ms. Mary C. Stradner, Production Manager of VCH Publishers, are to be thanked for their unflagging devotion to the highest editorial standards. The original conception for this series was the brainchild of Dr. Hans F. Ebel, Director of the Editorial Department of VCH Verlagsgesellschaft in Weinheim, Federal Republic of Germany, who also played midwife at the birth of the plan of these reaction volumes with my former mentor, Professor Alan G. MacDiarmid of the University of Pennsyl- vania, and me in attendance, during the Anaheim, California, American Chemical Society Meeting in the Spring of 1978. Much of what has finally emerged is the product of the inventiveness and imagination of Professor Helmut Grunewald, President of VCH Verlagsgesellschaft. It is a pleasure to

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xxiv Preface to the Series

acknowledge that I have learned much from him during the course of our as- sociation. Ms. Nancy L. Burnett is to be thanked for typing everything that had to do with the series from its inception to this time. Directing an opera- tion of this magnitude without her help would have been unimaginable. My wife Rose stood by with good cheer while two rooms of our home filled up with 10,OOO manuscript pages, their copies and attendant correspondence.

Finally, and most important, an enormous debt of gratitude toward all our authors is to be recorded. These experts were asked to prepare brief sum- maries of their knowledge, ordered in logical sequence by our plan. In addi- tion, they often involved themselves in improving the original conception by recommending further refinements and elaborations. The plan of the work as it is being published can truly be said to be the product of the labors of the advisors and consultants on the editorial side as well as the many, many au- thors who were able to augment more general knowledge with their own de- tailed information and ideas. Because of the unusually strict requirements of the series, authors had not only to compose their pieces to fit within narrowly constrained limits of space, format and scope, but after delivery to a short deadline were expected to stand by while an intrusive editorial process homog- enized their own prose styles out of existence and shrank the length of their expositions. These long-suffering colleagues had then to endure the wait for the very last manuscript scheduled for their volume to be delivered so that their work could be published, often after a further diligent search of the liter- ature to insure that the latest discoveries were being cited and that claims for facts now proved false were eliminated. To these co-workers (270 for the reac- tion volumes alone), from whom so much was demanded but who continued to place their knowledge and talents unstintingly at the disposal of the proj- ect, we dedicate this series.

J. J. ZUCKERMAN Norman, Oklahoma

July 4, 1985

The scientific community is appreciative of the JJZ vision for a systematic inorganic chemistry. Many of the contributions had been edited prior to his death; therefore, his precise syntax will remain an important part of the series.

A.P. HAGEN Norman, Oklahoma

June 1, 1990

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Editorial Consultants to the Series

Professor H.R. Allcock Pennsylvania State University

Professor J.S. Anderson University of Aberystwyth

Professor F.C. Anson California Institute of Technology

Dr. M.G. Barker University of Nottingham

Professor D.J. Cardin Trinity College

Professor M.H. Chisholm Indiana University

Professor C. Cros Laboratoire de Chemie du Solide du

C.N.R.S.

Dr. B. Darriet Laboratoire de Chemie du Solide du

C.N.R.S.

Professor E.A.V. Ebsworth University of Edinburgh

Professor J.J. Eisch State University of New York at

Binghamton

Professor J.R. Etourneau Laboratoire de Chemie du Solide du

C.N.R.S.

Professor G.L. Geoffroy Pennsylvania State University

Professor L.S. Hegedus Colorado State University

Professor W.L. Jolly University of California at Berkeley

Professor C.B. Meyer University of Washington

Professor H. Noth Universitiit Munchen

Professor H. Nowotny University of Connecticut

Dr. G.W. Parshall E.I. du Pont de Nemours

Professor M. Pouchard Laboratoire de Chemie du Solide du

C.N.R.S.

Professor J. Rouxel Laboratoire de Chimie Minirale au

C.N.R.S.

xxv

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xxvi

Professor R. Schmutzler Technische Universitat Braunschweig

Editorial Consultants to the Series

Dr. N. Sutin Brookhaven National Laboratory

Professor A.W. Searcy University of California at Berkeley

Professor R.A. Walton Purdue University

Professor D. Seyferth Dr. J.H. Wernick Massachusetts Institute of Bell Laboratories

Technology

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Contributors to Volume 17

Professor H. R. Allcock Department of Chemistry Pennsylvania State University University Park, Pennsylvania 16802

(Sections 15.1.1, 15.1.2, 15.2.11)

Professor Dr. J. 0. Besenhard Anorganisch-Chemisches Institut Westfalische Wilhelms-Universitat

4400 Munster, BRD Miinster

(Sections 16.4.2.5,- 16.4.2.8)

Professor R. K. Bunting Department of Chemistry Illinois State University Normal, Illinois 61761-6901

(Sections 15.2.5, 15.2.6)

Professor T. Chivers Department of Chemistry The University of Calgary Alberta, T2N 1N4 Canada

(Section 15.2.12)

Dr. C. E. Carraher, Jr. Department of Chemistry Florida Atlantic University Boca Raton, Florida 33431

(Sections 15.1.13, 15.2.14)

Dr. C. Cros Laboratoire de Chemie du Solide du

CNRS 351, cours de la Liberation 33405 Talence, Cedex

(Sections 16.2.1- 16.2.3)

Dr. J. P. Doumerc Laboratoire de Chemie du Solide du

Universite de Bordeaux I 33405 Talence, Cedex

CNRS

(Section 16.3.2)

Dr. L. B. Ebert Corporate Research Exxon Research and Engineering

Clinton Township Rt 22 East Annandale, New Jersey 08801

(Sections 16.4.1-16.4.2.1)

Company

Professor J. P. Francois Department of Chemistry Limburgs Universitair Centrum 3610 Diepenbeek, Belgium

(Sections 15.2.1, 15.2.2)

Dr. C. L. Frye Health & Environmental Sciences Dow Corning Corporation Midland, Michigan 48686-0994

(Section 15.2.8)

Dr. D. Gubrard Laboratoire de Chimie du Solide

Universite de Nancy I

Vandoeuvse les Nancy Cedex

Mineral

B.P. 239-54506

(Section 16.4.2.4)

xxvii

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xxviii Contributors to Volume 17

Professor A. Herold Laboratoire de Chimie du Solide

Universitk de Nancy I

Vandoeuvse les Nancy Cedex (Sections 16.4.2.2- 16.4.2.4)

Mineral

B.P. 239-54506

Professor B. Raveau Laboratoire de Cristallographie et

Chimie du Solide Universite de Caen 14032 Caen, Cedex

(Section 16.3.1)

Professor Dr. U. Klingebiel Institut fur Anorganische Chemie

Tammannstr. 4 3400 Gottingen, BRD

der Universitat Gottingen

(Section 15.2.9)

Dr. P. Lagrange Laboratoire de Chemie du Solide

Universite de Nancy I

Vandoeuvse les Nancy Cedex

Mineral

B.P. 239-54506

(Section 16.4.2.2.2)

dr. ir. C. H. Massen Department of Physics Eindhoven University of Technology 5600 Eindhoven, The Netherlands

(Sections 15.2.1, 15.2.2)

Professer T. P. Onak Department of Chemistry and

California State University, Los

Los Angeles, California 90032

Biochemistry

Angeles

(Section 15.2.7)

Prof. J. A. Poulis Department of Physics Eindhoven University of Technology 5600 Eindhoven, The Netherlands

(Sections 15.2.1, 15.2.2)

Professor A. L. Rheingold Department of Chemistry University of Delaware Newark, Delaware 19716

(Section 15.2.3)

Professor J. Rouxel Laboratoire de Chimie des Solides Institut de Physique et Chimie des

Universite de Nantes 44072 Nantes, Cedex

(Section 16.4.3)

Materiaux

Dr. R. Setton Centre de Recherche sur les Solides

B Organisation Cristalline Imparfaite, CNRS

45071 Orleans, Cedex 2 (Section 16.4.2.3)

Dr. L. C. van Poucke Department of Chemistry Limburgs Universitair Centrum 5600 Eindhoven, The Netherlands

(Sections 15.2.1, 15.2.2)

Professor J. R. Van Wazer Department of Chemistry Vanderbilt University Nashville, Tennessee 37235

(Sections 15.1.3, 15.2.10)

Dr. R. West Department of Chemistry University of Wisconsin Madison, Wisconsin 53706

(Section 15.2.4)