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16th European Workshop

on

Phosphorus Chemistry

24-26 April 2019

Welcome to EWPC-16 and welcome to Bristol!

The European Workshop on Phosphorus Chemistry has a strong reputation for the fruitful exchange of

ideas and opinions through animated discussions in a convivial atmosphere. The aspects of

phosphorus chemistry covered by EWPC span organic, inorganic, polymer, materials and biological

chemistry.

EWPC gives early stage researchers the opportunity to communicate their work to the leading

European research groups in phosphorus chemistry. The program this year includes 33 oral

contributions from PhD students and 70 posters. The Workshop is preceded by the inaugural IndPhos

symposium which will showcase the P-chemistry that is important in industry today with 6 lectures from

leading industrial researchers. It is hoped that the perspective provided by IndPhos will stimulate

future academic-industrial collaborations.

Hansjörg Grützmacher, whose research has attracted much industrial interest, will present a talk that

will bridge IndPhos and EWPC-16.

I would like to thank the generous sponsors of the meeting, particularly Solvay, LANXESS, Strem,

Magritek, OCP, Glindemann and The Royal Society of Chemistry (Dalton Division).

IndPhos was the idea of Chris Slootweg (Univ. Amsterdam) and he has done the great bulk of the

work to make it happen. My group (pictured below) have been brilliant in injecting ideas and helping

with the administration of EWPC.

I hope you find the science absorbing and you enjoy your stay in Bristol.

Paul G Pringle

Callum Branfoot, Rachel Doyle, Sarah Williams, Ailis Chadwick, Lexy Miles-Hobbs, Dan Wise

1

24 April

09:20 Introduction

Paul Pringle (Univ. Bristol)

Chair: Chris Slootweg (Univ. Amsterdam)

09:30 Sustainable Industrial Phosphorus Chemistry

Willem Schipper WS Consulting

10:00 Real World Applications of Organophosphorus Chemistry

Chris Harris Solvay

10:30 Catalysis with P-ligands at BASF and New Developments at CaRLa

Thomas Schaub BASF

11:00 Coffee

11:30 Poly(alkylene phosphates)

Jan-Gerd Hansel LANXESS

12:00 IONQUEST for Solvent Extraction:

Industrial Scale-up of Diverse P-Chemistries

Steven van Zutphen Italmatch

12:30 Acylphosphine Oxide Photoinitiators: Some Recent Developments

Reinhard Sommerlade Independent Process Design Chemist

13:00 Lunch

14:00 Building blocks containing phosphorus for atom efficient syntheses

Hansjörg Grützmacher ETH, Zurich

15:00 Coffee

2

15:30 Introduction

Paul Pringle (Univ. Bristol)

Chair: Erica Neves de Faria (Univ. Oxford)

15:40 O1: Air-stable dialkylphosphine surrogates from zinc phosphide

Tom Barber

Univ. Nottingham, UK

16:00 O2: On the way to nucleophilic phosphinines

Friedrich Wossidlo

Freie Univ. Berlin, Germany

16:20 O3: Investigating the reactivity and reduction chemistry of cobalt diphosphine complexes

Claire Brodie

Durham Univ., UK

16th European Workshop on

Phosphorus Chemistry

Safe, convenient PH3 precursor

Operationally simple, ‘solvent free' alkylation

3

Wednesday 24 April

16:40 O4: Phosphaalkenes in organic chemistry

Nicolas D'Imperio

Uppsala Univ., Sweden

17:00 O5: Synthesis of cationic polypnictogen complexes

Luis Dütsch

Univ. Regensburg, Germany

17:20 O6: Convenient one-pot reaction for the synthesis of α-H-phosphinate and H-HMBPi salts

Jade Dussart

Univ. Paris, France

18:30 – 20:30 Reception on SS Great Britain

Wednesday 24 April 2019

4

Chair: Gabriele Hierlmeier (Univ. Regensberg)

09:00 O7: Investigation of optical and electronic properties of phosphole-based π-systems and phosphanylsiloles

Réka Mokrai

Budapest Univ. of Technology and Economics, Hungary

09:20 O8: Cyclic fluorophosphites: ligands that span the bonding space between phosphites and PF3

Lexy Miles-Hobbs

Univ. Bristol, UK

09:40 O9: Lewis base catalysed isomerisation of a phosphaethynolato- to phosphaketenylborane

Daniel Wilson

Univ. Oxford, UK

10:00 O10: Synthesis and characterization of sterically protected,functionalized 2,4-diphosphapentasilanes

Gernot Weinberger

TU Graz, Austria

10:20 O11: Phosphorandiylium (R3P)2+: a three-coordinate phosphorus dication

Tobias Eder

Univ. Münster, Germany

10:40 Coffee

5

Thursday 25 April 2019

Chair: Philipp Brehm (Univ. Bonn)

11:10 O12: New family of P-stereogenic phosphahelicenes

Julie Febvay

Institut de Chimie des Substances Naturelles, CNRS, France

First helically chiral BrØnsted acids

11:30 O13: Selective nitrile reduction using solid-supported triphos ligands: application in continuous flow

Robert Konrath

Univ. St Andrews, UK

11:50 O14: NHP-Nitrosyl complexes of iron

Christoph Feil

Univ. Stuttgart, Germany

12:10 O15: Investigation of microwave assisted Kabachnik-Fileds and Biginelli reactions

Nóra Tóth

Budapest Univ. of Technology and Economics, Hungary

12:30 O16: Abnormal reactions of N-heterocyclic carbenes with phosphaalkenes

Zeyu Han

Univ. British Columbia, Canada

12:50 Lunch

Thursday 25 April 2019

6

Chair: Daniel Buzsáki (Budapest Univ.)

14:20 O17: Synthesis and reactivity of 3H-phospha-allenes

Jonas Tendyck

Univ. Münster, Germany

14:40 O18: Frustrated radical pair formation

Flip Holtrop

Univ. Amsterdam, Netherlands

15:00 O19: Protolysis reaction and P/N–P/P bond metathesis for the synthesis of cationic polyphosphanes

Clemens Taube

Univ. Dresden, Germany

15:20 O20: Anionic N-heterocyclic carbenes for pnictogen complexes

Luong Phong Ho

Univ. Braunschweig, Germany

15:40 O21: Activation of CO2 and CS2 by diphosphane/BPh3 frustrated Lewis pairs

Natalia Szynkiewicz

Gdansk Univ., Poland

16:00 Coffee

Thursday 25 April 2019

7

Chair: Thomasine Curzon (Univ. St Andrews)

16:30 O22: Immobilization of P-based organocatalysts by plasma techniques

Yuya Hu

LIKAT Rostock, Germany

16:50 O23: Primary phosphanes with 2,6-bis-(benzhydryl)phenyl backbones

Tim Suhrbier

Univ. Rostock, Germany

17:10 O24: Reactivity of silane compounds with few-layer black phosphorus

Iñigo Iglesias

CNR-ICCOM, Italy

17:30 O25: Effect of aromatic substituents on formation and reactivity of Li/Cl phosphinidenoid complexes

Alexander Schmer

Univ. Bonn, Germany

17:50 O26: 1,2-Dihydrophosphetes: an unexplored P-containing four-membered ring for optoelectronic applications

Hortense Lauwick

Univ. Rennes, CNRS, France

18:30 Poster Event

Thursday 25 April 2019

8

Chair: Matteo Vanni (CNR-ICCOM)

09:00 O27: Exploiting peri-substitution to promote coupling reactions

Bethany Lawson

Univ. St Andrews, UK

C–H coupling via radical mechanism

09:20 O28: Silylation of Na3P assisted by phosphonium salts: A new route towards reactive P species

Grégoire Le Corre

ETH Zurich, Switzerland

09:40 O29: Catalytic transformation of white phosphorus into aryl phosphines and phosphonium salts

Ulrich Lennert

Univ. Regensburg, Germany

10:00 O30: Direct asymmetric Ru-phosphine-catalyzed reductive amination of aryl-alkyl ketones with NH3/H2

Maximilian Menche

BASF Catalysis Research Laboratory, Heidelberg, Germany

10:20 Coffee

Friday 26 April 2019

9

Chair: Steven Beijer (Univ. Amsterdam)

10:50 O31: Asymmetrically substituted phospholes: from fynthesis to imprinted structures

Fabian Roesler

Univ. Kassel, Germany

11:10 O32: Phospholes vs. arsoles: one ring to rule them all

Darren Ould

Cardiff Univ., UK

11:30 O33: Synthesis of heterobimetallic complexes from N,P-based heteroditopic ligands

Saral Baweja

Leipzig Univ., Germany

12:00 EWPC-17

12:15 Finale

12:30 Depart

Friday 26 April 2019

10

Posters

No. Title Name Affiliation

P1 Dehydrocoupling of phosphines mediated by alkali metal

catalysts

Vincent Annibale Univ. Bristol

P2 From McMurry to Wittig via phospha-alkenes: novel

approach to reductive carbonyl coupling

Anna Arkhypchuk Uppsala Univ.

P3 Reactions of isonitrile-to-phosphinidene complex

adducts

David Becker Univ. Bonn

P4 An organocatalytic Mitsunobu Esterification Reaction Rhydian Beddoe Univ. Nottingham

P5 Circular chemistry: the sustainable use of phosphorus Steven Beijer Univ. Amsterdam

P6 Investigations on the reactivity of N-Heterocyclic

Phosphenium Complexes of Chromium

Nicholas Birchall Univ. Stuttgart

P7 Reactivity of [Cp*Fe(η5-P5)] towards halogenating agents Helena Brake Univ. Regensburg

P8 CO-insertion into an endocyclic P-C bond of a

constrained tricyclic PC3 phosphine

Alexander Brand Univ. Münster

P9 The homometathesis and heterometathesis reactions of

tetra-aryldiphosphanes

Callum Branfoot Univ. Bristol

P10 TEMPO-substituted phosphane–iron(0) complexes:

precursors for phosphanoxyl complexes?

Philipp Brehm Univ. Bonn

P11 Variation on carbenes and pnictanes – a computational

study

Daniel Buzsaki Budapest Univ.

P12 A strong C2-symmetric BINOL derived phosphorus

Brønsted acid catalyst

Andy Caffyn Manchester Met. Univ.

P13 Coordination chemistry of a

1,1’-diphosphacobaltocenium salt

Duncan Carmichael Ecole Polytechnique

CNRS

P14 Novel diphosphine bioconjugate for nuclear imaging Ailis Chadwick Univ. Bristol

P15 Bonding and reactivity of phosphorus−antimony peri-

substituted acenaphthenes

Thomasine Curzon Univ. St Andrews

P16 Dismantling the hyperconjugation of π–conjugated

phosphorus heterocycles

Abel de Cózar Univ. the Basque

Country

P17 The sweeter side of SPECT imaging Rachel Doyle Univ. Bristol

P18 Reactivity of sodium phosphanide towards imines Doruk Ergöçmen Univ. Oxford

P19 Reactivity of the 2-phospha-ethynolate anion:

a pathway to phosphinecarboxamides

Erica Faria Univ. Oxford

P20 Stabilising Main Group complexes with auxiliary

phosphine groups

Joey Feld Univ. Oxford

P21 Synthesis and coordination chemistry of cyclo-

triphospirane derivatives with a [L-P3]-core derived from

a Ga2Cl4-bridged triphospha-allyl cation (L = NHC)

Julia Frötschel TU Dresden

P22 New way to run the Wittig Olefination Declan Gilheany Univ. College Dublin

P23 Synthesis and new reactions of 1,2σ3λ3-

oxaphosphetanes

Florian Gleim Univ. Bonn

P24 Reactions of imidazolio-phosphanides with organotin

halides

Florian Goerigk Univ. Stuttgart

11

P25 Coordination of phosphaalkynes to transition metals:

potential C-CP cleavage in mesitylphospha-acetylene

Tim Görlich Freie Univ. Berlin

P26 Substituting phosphorus – arsoles as air-stable

alternatives to phospholes

Joshua Green Uppsala Univ.

P27 Fluorophosphonium triflate salt catalysed synthesis of N-

sulfonyl formamidines

Chunxiang Guo Technische Univ.

Dresden

P28 Weak pnictogen bond with bismuth: experimental

evidence based on Bi-P through-space coupling

Dominikus Heift Durham Univ.

P29 Deprotonation and transmetalation of alkoxy substituted

phosphine boranes

Thomas Hettich Univ. Stuttgart

P30 Diphosphatetrahedranes - closing the gap in

phospha-alkyne oligomer chemistry

Gabriele Hierlmeier Univ. Regensburg

P31 Selective activation, functionalization and fragmentation

of white phosphorus by an α-diimine cobalt complex

Christian Hoidn Univ. Regensburg

P32 Frustrated radical pair formation Flip Holtrop Univ. Amsterdam

P33 A new biocompatible diphosphine-peptide chelator:

attaching peptides to 99mTc(V) for targeted SPECT

imaging of disease

Ingebjorg Hungnes King's College London

P34 Synthesis and properties of azophosphines Andrew Jupp Univ. Amsterdam

P35 Synthesising and characterisation of UV curable

phosphorus containing flame retardant polymer

Dilek Kacmaz Yildiz Technical Univ.

P36 Novel access to TTF-fused 1,4-dihydro-1,4-

diphosphinines

Shahriar

Kermanshahian

Univ. Bonn

P37 Towards optical tunable phospholes with functionalities Dieter Klintuch Univ. Kassel

P38 Synthesis and reactivity of a low-valent pyridyl-

diphenylphosphinine iron complex

Julia Leitl Univ. Regensburg

P39 Synthesis and reactivity of the first trans-alkyl cyaphide

complex

Madeleine Levis Univ. Sussex

P40 B(C6F5)3 enabled synthesis of a cyclic

cis-arsaphosphene

Meera Mehta Univ. Oxford

P41 The polymerization of C=P bond of 2-

phosphanaphthalenes

Yanbo Mei ETH Zürich

P42 On the aromaticity of the phosphabenzene –

triphosphabenzene series

Antal Mikehazi Budapest Univ.

P43 Going heavy on cyanates: PCS– and PCSe– Stefan Mitzinger Univ. Oxford

P44 Hetero-cyclopentane-1,3-diyls: modification of molecular

switches

Henrik Müller Univ. Rostock

P45 Tri(N-oleyl)phosphane stock-solution as alternative to

tris(trimethylsilyl)phosphane in the synthesis of narrow

size-distributed InP quantum dots

Michael Müller Technische Univ.

Dresden

P46 Nucleophilic attack @ phosphorus: single and twin

inversion

Kirill Nikitin Univ. College Dublin

P47 Syntheses and structures of new diphosphinoboranes Anna Ordyszewska Gdansk Univ. of

Technology

P48 Steric control in reactions of N-heterocyclic phosphorus

electrophiles with pentacarbonylmanganate(-I)

Marius Papendick Univ. Stuttgart

12

P49 Phosphametacyclophanes: from versatile ligands to

tuneable molecular electronics

Kyle Pearce Univ. Sussex

P50 Investigation of the reactivity of [Cp’’’Co(η4-P4)] Martin Piesch Univ. Regensburg

P51 Catalytic dehydropolymerisation of phosphine–boranes

as a route to structurally diverse materials

Diego Resendiz-Lara Univ. Bristol

P52 Post-functionalizations of diphosphahexaarene

derivatives

Carlos Romero-Nieto Univ. Heidelberg

P53 Synthesis of pyridinylidenamino phosphines: One-pot,

scalable access to electron-rich phosphines

Philipp Rotering Univ. Münster

P54 Preparation of a molecular carbon phosphide precursor Moritz Scharnhölz ETH Zürich

P55 Synthesis of synthetic antibacterial polymers and their

applications in bacteria biosensor

Naime Ceren Süer Yildiz Technical Univ.

P56 Experimental and theoretical aspects of Group 15

biradicals [E(µ-NBbp)]2 (E = P, As)

Lilian Sophie Szych Univ. Rostock

P57 The N-cube: a benchtop reactor system for clean and

safe amine alkylation

Edward Thornton Univ. Nottingham

P58 Study of precatalyst degradation leading to the discovery

of a new Ru0 precatalyst for hydrogenation and

dehydrogenation

Daniel Tindall Catalysis Research

Laboratory (CaRLa)

P59 The chemical behaviour of Al/P- and Ga/P-based FLPs

towards strained cyclic compounds

Marten Uebing Univ. Münster

P60 Palladium/black phosphorus nanohybrid: what surface

techniques tell us about the Pd-P interaction

Matteo Vanni CNR-ICCOM

P61 Resolution of P-stereogenic H-phosphinates and

secondary phosphine oxides with TADDOL-derivatives

Bence Varga Budapest Univ.

P62 Pnictaalkene decorated truxene: synthesis and

optoelectronics

Jordann Wells Uppsala Univ.

P63 Synthesis and reactivity of

tris(1,2,5-trimethylpyrrolyl)phosphine

Janina Werra Univ. Münster

P64 Exploring novel phosphonite chemistry and new

bioisosteres

Dean Wheeler Univ. Nottingham

P65 Pt(0)-catalysed hydrophosphination with a triphosphine

substrate

Sarah Williams Univ. Bristol

P66 Luminescent ruthenium-diphosphine complexes as anti-

cancer agents

Dan Wise Univ. Bristol

P67 Oxidation and coordination of peri-substituted

acenaphthenes with phosphorus-selenium functionalities

Lutao Zhang Univ. St Andrews

P68 Synthesis of 4-phosphoryl pyrazolones and their

application in metal recovery

Jianfeng Zhang Technische Univ.

Dresden

P69 Construction of alkyl-substituted pentaphosphido ligands

by P–P condensation

Christoph Ziegler Univ. Regensburg

P70 Tripodal N-centred phosphine ligands: towards a novel

donor set for 99mTc and 186/188Re radiopharmaceutical

formulation

Saul Cooper Imperial College

London

13

List of Delegates

Delegate Affiliation Email Address

Anne Abels ETH Zürich abelsa@inorg.chem.ethz.ch

Vincent Annibale Univ. Bristol P1 va16816@bristol.ac.uk

Anna Arkhypchuk Uppsala Univ. P2 a.arkhypchuk@gmail.com

Peter Bagi Budapest Univ. pbagi@mail.bme.hu

Thomas Barber Univ. Nottingham O1 pcxtb1@nottingham.ac.uk

Saral Baweja Univ. Leipzig O33 saralbaweja@gmail.com

David Becker Univ. Bonn P3 becker@uni-bonn.de

Rhydian Beddoe Univ. Nottingham P4 pcxrhb@nottingham.ac.uk

Steven Beijer Univ. Amsterdam P5 s.beijer@uva.nl

Zoltan Benko Budapest Univ. zbenko@mail.bme.hu

Sebastian Berthold Univ. Rostock sebastian.berthold@uni-rostock.de

Nicholas Birchall Univ. Stuttgart P6 nicholas.birchall@iac.uni-stuttgart.de

Helena Brake Univ. Regensburg P7 helena.brake@ur.de

Alexander Brand Univ. Münster P8 a_bran14@uni-muenster.de

Callum Branfoot Univ. Bristol P9 callum.branfoot@bristol.ac.uk

Philipp Brehm Univ. Bonn P10 PhilippBrehm@uni-bonn.de

Jonas Bresien Univ. Rostock jonas.bresien@uni-rostock.de

Claire Brodie Durham Univ. O3 claire.n.brodie@durham.ac.uk

Daniel Buzsaki Budapest Univ. P11 buzsaki.daniel@mail.bme.hu

Jamie Cadge Univ. Bristol j.cadge@bristol.ac.uk

Andy Caffyn MMU, Manchester P12 a.caffyn@mmu.ac.uk

Maria Caporali CNR-ICCOM maria.caporali@gmail.com

Duncan Carmichael Ecole Polytechnique CNRS P13 duncan.carmichael@polytechnique.edu

Ailis Chadwick Univ. Bristol P14 ailis.chadwick@bristol.ac.uk

Thomasine Curzon Univ. St Andrews P15 tc77@st-andrews.ac.uk

Abel de Cózar Univ. del Pais Vasco P16 abel.decozar@ehu.es

Bas de Jong Univ. Amsterdam g.b.dejong@uva.nl

Fabian Dielmann Univ. Münster dielmann@uni-muenster.de

Nicolas D. D'Imperio Uppsala Univ. O4 nicolas.dimperio@kemi.uu.se

Dustin Dittrich Univ. Münster d_ditt03@uni-muenster.de

Rachel Doyle Univ. Bristol P17 rd17387@bristol.ac.uk

Natalia Dunal PCC Rokita natalia.dunal@pcc.eu

Jade Dussart Univ. Paris 13 O6 jade92.dussart@gmail.com

Luis Dütsch Univ. Regensburg O5 luis.duetsch@ur.de

Phil Dyer Durham Univ. p.w.dyer@durham.ac.uk

Tobias Eder Univ. Münster O11 t_eder03@uni-muenster.de

Andreas Ehlers Univ. Amsterdam a.w.ehlers@uva.nl

Doruk Ergöçmen Univ. Oxford P18 doruk.ergocmen@chem.ox.ac.uk

Erica Faria Univ. Oxford P19 erica.faria@chem.ox.ac.uk

Julie Febvay ICSN-CNRS O12 julie.febvay@cnrs.fr

Christoph Feil Univ. Stuttgart O14 christoph.feil@iac.uni-stuttgart.de

Joey Feld Univ. Oxford P20 joey.feld@chem.ox.ac.uk

Julia Frötschel TU Dresden P21 julia.froetschel@tu-dresden.de

Derek Gates Univ. British Columbia dgates@chem.ubc.ca

Anna Gerdova Magritek UK annag@magritek.com

Declan Gilheany Univ. College Dublin P22 declan.gilheany@ucd.ie

Florian Gleim Univ. Bonn P23 f.gleim@uni-bonn.de

Dietmar Glindemann Glindemann Polymer Tech. glindemann@glindemann.net

Marion Glindemann Glindemann Polymer Tech. glindemann@glindemann.net

Florian Goerigk Univ. Stuttgart P24 fl.goerigk@iac.uni-stuttgart.de

Jose Goicoechea Univ. Oxford jose.goicoechea@chem.ox.ac.uk

Tim Görlich Freie Univ. Berlin P25 goerlicht@zedat.fu-berlin.de

Joshua Green Uppsala Univ. P26 joshua.green@kemi.uu.se

Hansjörg Grützmacher ETH Zurich IndP hgruetzmacher@ethz.ch

Chunxiang Guo TU Dresden P27 sprluckguo@gmail.com

Zeyu Han Univ. British Columbia O16 xavierhanzeyu@gmail.com

Jan-Gerd Hansel LANXESS IndP jan-gerd.hansel@lanxess.com

Dominikus Heift Durham Univ. P28 dominikus.heift@durham.ac.uk

Thomas Hettich Univ. Stuttgart P29 thomas.hettich@iac.uni-stuttgart.de

Gabriele Hierlmeier Univ. Regensburg P30 gabriele.hierlmeier@ur.de

Lee Higham Newcastle Univ. lee.higham@ncl.ac.uk

Muriel Hissler CNRS-Univ. Rennes muriel.hissler@univ-rennes1.fr

Luong P. Ho TU Braunschweig O20 l.ho@tu-bs.de

Christian Hoidn Univ. Regensburg P31 christian.hoidn@ur.de

Flip Holtrop Univ. Amsterdam O18 P32 f.holtrop@uva.nl

Yuya Hu LIKAT Leibniz O22 yuya.hu@catalysis.de

Ingebjorg Hungnes King's College London P33 ingebjorg.hungnes@kcl.ac.uk

Iñigo Iglesias CNR-ICCOM O24 iiglesias5991@gmail.com

Sheena Jackson Solvay sheena.jackson@solvay.com

Andrew Jupp Univ. Amsterdam P34 a.r.jupp@uva.nl

Dilek Kacmaz Yildiz Technical Univ. P35 dlk.kcmz@gmail.com

Paul Kamer LIKAT Rostock paul.kamer@catalysis.de

Mary Kedward Strem Chemicals UK mkedward@strem.co.uk

Zsolt Kelemen Univ. Barcelona kelemen.zsolt@mail.bme.hu

Shahriar Kermanshahian Univ. Bonn P36 shk2018@uni-bonn.de

Petr Kilian Univ. St Andrews pk7@st-andrews.ac.uk

Ashley King Univ. Bristol ak13815@bristol.ac.uk

Dieter Klintuch Univ. Kassel P37 d.klintuch@uni-kassel.de

Robert Konrath Univ. St Andrews O13 rk49@st-andrews.ac.uk

Anas Lahlou OCP Group lahlou.anas@ocpgroup.ma

Hortense Lauwick CNRS-Univ. Rennes O26 hortense.lauwick@univ-rennes1.fr

Bethany Lawson Univ. St Andrews O27 bjml@st-andrews.ac.uk

Grégoire Le Corre ETH Zürich O28 lecorreg@inorg.chem.ethz.ch

Marc Lecouvey Univ. Paris 13 marc.lecouvey@univ-paris13.fr

Julia Leitl Univ. Regensburg P38 Julia.Leitl@ur.de

Ulrich Lennert Univ. Regensburg O29 ulrich.lennert@ur.de

Madeleine Levis Univ. Sussex P39 ml498@sussex.ac.uk

Angela Marinetti CNRS angela.marinetti@cnrs.fr

Nigel Matthews Strem Chemicals UK nigel@strem.co.uk

Meera Mehta Univ. Oxford P40 mehtame2@gmail.com

Yanbo Mei ETH Zürich P41 mei@inorg.chem.ethz.ch

Maximilian Menche Catalysis Research Lab. O30 maximilian.menche@basf.com

Antal Mikehazi Budapest Univ. P42 mikehazi.anton@gmail.com

Lexy Miles-Hobbs Univ. Bristol O8 am1547@bristol.ac.uk

Stefan Mitzinger Univ. Oxford P43 stefan.mitzinger@chem.ox.ac.uk

Reka Mokrai Budapest Univ. O7 mokrai.reka@mail.bme.hu

Christian Mueller FU Berlin c.mueller@fu-berlin.de

Henrik Müller Univ. Rostock P44 henrik.mueller@uni-rostock.de

Michael Müller TU Dresden P45 Michael.mueller19@tu-dresden.de

Kirill Nikitin UCD Dublin P46 kirill.nikitin@ucd.ie

Nick Norman Univ. Bristol n.c.norman@bristol.ac.uk

Laszlo Nyulaszi Budapest Univ. nyulaszi@mail.bme.hu

Anna Ordyszewska Gdansk Univ. P47 annordys@student.pg.edu.pl

Andreas Orthaber Uppsala Univ. andreas.orthaber@kemi.uu.se

Darren Ould Cardiff Univ. O32 ouldd@cardiff.ac.uk

Marius Papendick Univ. Stuttgart P48 marius.papendick@iac.uni-stuttgart.de

Kyle Pearce Univ. Sussex P49 K.G.Pearce@sussex.ac.uk

Maurizio Peruzzini CNR-ICCOM maurizio.peruzzini@iccom.cnr.it

Martin Piesch Univ. Regensburg P50 martin.piesch@ur.de

Rudolf Pietschnig Univ. Kassel pietschnig@uni-kassel.de

Paul Pringle Univ. Bristol paul.pringle@bristol.ac.uk

Diego Resendiz-Lara Univ. Bristol P51 dr14859@bristol.ac.uk

Fabian Roesler Univ. Kassel O31 fabian.roesler@uni-kassel.de

Carlos Romero-Nieto Univ. Heidelberg P52 romero.nieto.carlos@gmail.com

Philipp Rotering Univ. Münster P53 philipp.rotering@icloud.com

Chris Russell Univ. Bristol Chris.Russell@bristol.ac.uk

Anna C. Sale Evonik Industries anna-chiara.sale@evonik.com

Moritz Scharnhölz ETH Zürich P54 scharnhoelz@inorg.chem.ethz.ch

Thomas Schaub BASF SE IndP thomas.schaub@basf.com

Willem Schipper WS Consulting IndP wsconsulting@zeelandnet.nl

Alexander Schmer Univ. Bonn O25 schmer@uni-bonn.de

Axel Schulz Univ. Rostock axel.schulz@uni-rostock.de

Daniel Scott Univ. Regensburg daniel.scott@chemie.uni-regensburg.de

Samuel Scott Univ. Bristol ss16889@bristol.ac.uk

Alexandra Slawin Univ. St Andrews amzs@st-and.ac.uk

J. Chris Slootweg Univ. Amsterdam j.c.slootweg@uva.nl

Reinhard Sommerlade Process Design Chemist IndP reinhard.sommerlade@gmail.com

N. Ceren Süer Yildiz Technical Univ. P55 ncerens@gmail.com

Tim Suhrbier Univ. Rostock O23 tim.suhrbier@uni-rostock.de

Agnieszka Swist PCC Rokita agnieszka.swist@pcc.eu

Lilian S. Szych Univ. Rostock P56 lilian.szych@uni-rostock.de

Natalia Szynkiewicz Gdansk Univ. O21 natalia.szynkiewicz@gmail.com

Clemens Taube TU Dresden O19 Clemens.Taube@tu-dresden.de

Jonas C. Tendyck Univ. Münster O17 jonas.tendyck@uni-muenster.de

Edward Thornton Univ. Nottingham P57 pcxet2@nottingham.ac.uk

Daniel J. Tindall Catalysis Research Lab. P58 daniel.tindall@carla-hd.de

Nóra Tóth Budapest Univ. O15 tothnori94@gmail.com

Oliver Townrow Univ. Oxford oliver.townrow@chem.ox.ac.uk

Marten Uebing WWU Münster P59 m_uebi01@uni-muenster.de

Werner Uhl Univ. Münster uhlw@uni-muenster.de

Steven van Zutphen Italmatch Chemicals IndP s.vanzutphen@italmatch.com

Matteo Vanni CNR-ICCOM P60 m.vanni@iccom.cnr.it

Bence Varga Budapest Univ. P61 varga.bence@mail.bme.hu

Norbert Weferling WefConsult norbert.weferling@onlinehome.de

Gernot Weinberger TU Graz O10 g.weinberger@tugraz.at

Jordann Wells Uppsala Univ. P62 jordann.wells@kemi.uu.se

Janina A. Werra Univ. Münster P63 janina.werra@wwu.de

Dean Wheeler Univ. Nottingham P64 pcxdw6@nottingham.ac.uk

Sarah Williams Univ. Bristol P65 sw17440@bristol.ac.uk

Daniel Wilson Univ. Oxford O9 Daniel.wilson2@chem.ox.ac.uk

Dan Wise Univ. Bristol P66 dan.wise@bristol.ac.uk

Robert Wolf Univ. Regensburg robert.wolf@ur.de

Gary Woodward Solvay IndP gary.woodward@solvay.com

Derek Woollins Univ. St Andrews jdw3@st-and.ac.uk

Friedrich Wossidlo FU Berlin O2 fwoss@zedat.fu-berlin.de

Lutao Zhang Univ. St Andrews P67 ltz@st-andrews.ac.uk

Jianfeng Zhang TU Dresden P68 jianfeng.zhang@tu-dresden.de

Christoph Ziegler Univ. Regensburg P69 christoph.ziegler@ur.de

Saul Cooper Imperial College London P70 saul.cooper17@imperial.ac.uk

Chris Harris Solvay IndP chris.harris@solvay.com

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PTFE (“TEFLON”) Sealing Ring for hermetic greaseless Glass Joints

Glindemann D.1,*

1 Glindemann Polymer Technologies,

Goettinger Bogen 15, 06126 Halle, Germany *dglinde@aol.com

There is a prejudice that PTFE (often called “Teflon”) is too inelastic to be a hermetic sealant for greaseless conical joints. Therefore, teaching books recommend threaded or flanged “O-ring joints” for hermetic manipulation of air- and moisture sensitive chemicals if joint grease is no option. Here we show (Figure 1) that the common ground conical glass joint can be sealed relatively hermetic and at low cost with a narrow flat PTFE sealing ring (less than 1 mm wide and 0.1 mm thick, weight only 5 mg PTFE). The sealing ring is high-vacuum tight (air leakage rate 10-8… 10-6 mBar*Liter/sec), solvent tight (loss of ethyl acetate out of containers < 0.1 mg/day) and resistant to fluctuation of temperature (freezing-thawing-heating cycles). The reusable PTFE sealing ring prevents stuck joints, is thin enough to be used with all joint clamps and is fixed elastically (without groove) on the glass joint. We demonstrate also a new all-glass-syringe ((Figure 1, 1 - 100 mL) that is gastight at fluctuating temperatures (freezing-thawing-cycles) by a similar exchangeable sealing ring (PTFE) in a groove of the glass piston.

Fig.1. Left: PTFE-sealing ring fixed elastic (no groove necessary). Middle: Sealing ring intransparent without pressure. Right: Sealing ring transparent under sealing pressure. Far right: A similar PTFE ring and a piston groove

make an all-glass-syringe gastight.

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SoC

SSGB

Park Street

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European Workshops on Phosphorus Chemistry

1 2004 Kaiserslautern Deutschland

2 2005 Bonn Deutschland

3 2006 Leipzig Deutschland

4 2007 Zandvoort Nederland

5 2008 Regensburg Deutschland

6 2009 Firenze Italia

7 2010 Budapest Magyarország

8 2011 Münster Deutschland

9 2012 Rennes France

10 2013 Regensburg Deutschland

11 2014 Со́фия България

12 2015 Kassel Deutschland

13 2016 Berlin Deutschland

14 2017 Cluj-Napoca România

15 2018 Uppsala Sverige

16 2019 Bristol United Kingdom