Formation and NMR evidence for lambda(5)-silicates with a SiS5 coordination

Authors
Herzog, U
Citation
U. Herzog, Formation and NMR evidence for lambda(5)-silicates with a SiS5 coordination, MAIN GR MET, 24(11), 2001, pp. 757-759
Citations number
15
Categorie Soggetti
Chemistry
Journal title
MAIN GROUP METAL CHEMISTRY
ISSN journal
07921241 → ACNP
Volume
24
Issue
11
Year of publication
2001
Pages
757 - 759
Database
ISI
SICI code
0792-1241(2001)24:11<757:FANEFL>2.0.ZU;2-M
Abstract
The reaction of PhSLi, made from BuLi and PhSH in TPF solution, with the sp irosilanes C2H4(S)(2)Si(S)(2)C2H4 (1) or C6H4(S)(2)Si(S)(2)C6H4 (3) yields the hypervalent silicon species [Li(TTF)(n)]{[C2H4(S)(2)](2)SiSPh} (2) and [Li(THF)(n)]{[C6H4(S)(2)](2)SiSPh} (4), respectively, with a SiS5 coordinat ion. The observed Si-29 NMR chemical shifts are with -85.9 ppm (2) and -63. 0 ppm (4) in the typical range of silicon with the coordination number five .