Synthesis and Characterization of Potassium Aryl- and Alkyl-Substituted Silylchalcogenolate Salts
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Transylvania Univ., Lexington, KY (United States)
- Transylvania Univ., Lexington, KY (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Treatment of either triphenyl(chloro)silane or tert-butyldiphenyl(chloro)silane with potassium metal in THF, followed by addition of 18-crown-6, affords [K(18-crown-6)][SiPh3] (1) and [K(18-crown-6)][SiPh2 tBu] (2), respectively, as the reaction products in high yield. Compounds 1 and 2 were fully characterized including by multi-nuclear NMR and IR spectroscopies. Addition of elemental chalcogen to either 1 or 2, results in facile chalcogen insertion into the potassium-silicon bond to afford the silylchalcogenolates, [K(18-crown-6)][E– SiPh2R] (E = S, R = Ph (3); Se, R = Ph (4); E = Te, R = Ph (5); E = S, R = tBu (6); E = Se, R = tBu (7); E = Te, R = tBu (8)), in moderate to good yield. The silylchalcogenolates reported herein were characterized by multi-nuclear NMR and IR spectroscopies, and their solid-state molecular structures were determined by single-crystal X-ray crystallography. Importantly, the reported compounds crystallize as discrete monomers in the solid-state, a structural feature not previously observed in silylchalcogenolates, providing well-defined access routes into systematic metal complexation studies.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1335624
- Report Number(s):
- LA--UR-15-28775
- Journal Information:
- Dalton Transactions, Journal Name: Dalton Transactions Journal Issue: 24 Vol. 45; ISSN 1477-9226
- Publisher:
- Royal Society of ChemistryCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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