New stable germylenes, stannylenes, and related compounds.: 8.: Amidogermanium(II) and -tin(II) chlorides R2N-E14-Cl (E14 = Ge, R = Et; E14 = Sn, R = Me) revealing new structural motifs

被引：14
|
作者：
Khrustalev, Victor N.
Glukhov, Ivan V.
Borisova, Irina V.
Zemlyansky, Nikolay N.
机构：
[1] Russian Acad Sci, AN Nesmeyanov Organomet Cpds Inst, Moscow 119991, Russia
[2] Russian Acad Sci, AV Topchiev Petrochem Synth Inst, Moscow 119991, Russia
来源：
APPLIED ORGANOMETALLIC CHEMISTRY | 2007年 / 21卷 / 07期
关键词：
germanium(II) and tin(II); chlorides; amides; alkylamino ligands; crystal structure;
D O I：
10.1002/aoc.1252
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
New stable amidogermanium(II) and -tin(II) chlorides R2N-E-14-Cl[E-14 = Ge, R = Et (1), E-14 = Sn, R = Me (2)] have been synthesized and their crystal structures have been determined by X-ray diffraction analysis. Both 1 and 2 are dimers formed via the two intermolecular E-14 <- N dative interactions, with the bridged amido ligands and the terminal chloro ligands. The central E-14 N-2(2) four-membered ring has a butterfly conformation in the germanium derivative 1 and a planar conformation in the tin derivative 2. The chloride atoms are disposed in the trans-configuration relative to the four-membered ring. Both structures 1 and 2 reveal new previously unobserved structural motifs for amidogermanium(II) and -tin(II) chlorides, respectively. The electronic structures of 1 and 2 were studied by quantum chemistry within the DFT approach. Copyright (c) 2007 John Wiley & Sons, Ltd.
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页码：551 / 556
页数：6
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