期刊
INORGANIC CHEMISTRY COMMUNICATIONS
卷 5, 期 7, 页码 533-536出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1387-7003(02)00453-7
关键词
silicon; tin(IV); amides; hypervalent silicon
Treatment of [(APyTMS)Li(OEt2)], (APyTMSH = 6-methyl-2-(trimethylsilylamino)-pyridine) with one equivalent of SiCl4 affords [SiCl3(APyTMS)], while similar treatment of [(APyTMS)Li(OEt2)] with 0.5 equivs of SiCl4 or SnCl4 yields [SiCl2(APyTMS)(2)] and [SnCl2(APyTMS)(2)], respectively, in good yield. [SiMe2(APyH)(2)] is obtained by treating [(APyH)Li(OEt2)] with 0.5 equivs of Cl2SiMe2. All complexes were characterised by NMR and IR spectroscopy, and in the case of [SiCl3(APyTMS)] and [SiCl2 (APyTMS)(2)] by X-ray crystallographic methods. The X-ray structure of [SiCl3(APyTMS)] reveals a monouclear compound with a hypervalent five-coordinate silicon centre, while [SnCl2(APyTMS)(2)] is mononuclear with a distorted octahedral tin(IV) centre. (C) 2002 Elsevier Science B.V. All rights reserved.
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