William M. Kerlin Office: HRC 405 Mail code: 4009 Phone: (916) 548-7498 Fax: (702) 895-3094 Email: kerlinw@unlv.nevada.edu

Biography William Kerlin is at 5th year student in the UNLV Radiochemistry PhD Program. He received his Bachelor of Science degree in Chemistry from California State University, Sacramento. Research Hydrothermal Synthesis of Low-valent Technetium Metal-metal Bonded Dimers Transition metals of groups six through nine exhibit unique direct multiple metal-metal bonding cores. Technetium-99 (β

- = 293 keV) is a group seven radioactive element that is

of concern due to the long-lived half-life (2.13 x105 years), from spent nuclear fuel. The

fundamental chemistry of low valent Tc is not well explored compared to the surrounding elements Mo, Re, and Ru. Currently over 200 compounds containing the Re2

+n (n = 4, 5,

6) cores are known, whereas less than 30 compounds with Tc2+n

(n = 4, 5, 6) core exist.

One example of a Tc2+6

core is Tc2(O2CCH3)4Cl2 and has been shown to be a stable starting compound for synthesis of technetium binary halides. Hydro/solvo-thermal synthesis methods are used to reduce pertechnetate species, Tc(VII), to low-valent stable Tc-Tc dimers by changing temperature and pressure of the system under constant volume. Results of these hydro/solvo-thermal reactions have yielded four new pentacarboxylate ditechnetium (II, III) dimers that show stability in strong acid conditions and have no apparent solubility in aqueous and organic solvents. Theses metal-metal bonded polymers show promise as a potential waste form to be integrated into the nuclear fuel cycle. Publications, Presentations and Awards Polynuclear Technetium Iodides Compounds with Multiple Metal-metal Bonds International Symposium on Technetium and Rhenium La Baule, France October, 2014 Plutonium Speciation Influence on the

22Na Yield from the

19F[α,n]

Reaction

Plutonium Futures , Las Vegas, NV Sept. 2014

American Crystallographic Assoc. Annual Mtg May 2014. Albuquerque, NM Preparation of Low Valent Technetium Metal-metal Bonded Species via Solvothermal Reduction of Pertechnetate Salts 5

th Asia-Pacific Symposium on Radiochemistry 2013

APSORC”13 Kanazawa, Japan American Chemical Society Meeting, Fall 2013 Indianapolis, IN Solvothermal Synthesis and Characterization of Pentacarboxylate Ditechnetium (II, III) Polymers Atalante , 2012 Le Corum, Montpellier, France Gordon Research Conf. on Crystal Engineering Waterville, NH June, 2012 Hydrothermal Synthesis of tetraacetatedichloroditechnetium(III) International Symposium on Technetium and Rhenium Moscow, Russia July, 2011 Hydrothermal synthesis and solid-state structures of polynuclear technetium iodide compounds Inorganica Chimica Acta (2014). Hydrothermal synthesis and solid-state structure of Tc2(µ-O2CCH3)4Cl2 Polyhedron 58 (2013) 115-119.