Diorganotin(IV) complexes of 2,5-dithiobiurea (H2dtbu).: The crystal structures of Me2Sn(dtbu) and Ph2Sn(dtbu)

被引：3
|
作者：
Zhang, RF
Sun, JF
Ma, CL [1 ]
机构：
[1] Liaocheng Univ, Dept Chem, Liaocheng 252059, Peoples R China
[2] Taishan Univ, Tai An 271021, Peoples R China
来源：
HETEROATOM CHEMISTRY | 2006年 / 17卷 / 02期
关键词：
D O I：
10.1002/hc.20173
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The diorganotin(IV) complexes, R2Sn(dtbu) (R=Me 1, n-Bu 2, Ph 3, PhCH2 4; H(2)dtbu=2,5-dithiobiurea), have been synthesized and characterized by IR, H-1, and Sn-119 NMR spectroscopy. The structures of 1 and 3 have been determined by X-ray crystallography. Crystal structures show that both complexes 1 and 3 consist of molecules in which the bideprotonated ligand is N,S,S-bonded, and the tin atom exhibits distorted pentacoordination with small differences between the methyl and phenyl derivatives in bond distances and bond angles. The unusual coordination mode of the dtbu(2-) anion creates four- and five-membered chelate rings. Moreover, the packing of complexes 1 and 3 are stabilized by the hydrogen bonding. (c) 2006 Wiley Periodicals, Inc.
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页码：93 / 98
页数：6
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