M-X•••X′-C halogen-bonded network formation in MX2(4-halopyridine)2 complexes (M = Pd, Pt; X = Cl, I; X′ = Cl, Br, I)

被引：67
|
作者：
Zordan, Fiorenzo [1 ]
Brammer, Lee [1 ]
机构：
[1] Univ Sheffield, Dept Chem, Sheffield S3 7HF, S Yorkshire, England
来源：
CRYSTAL GROWTH & DESIGN | 2006年 / 6卷 / 06期
关键词：
D O I：
10.1021/cg050670m
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The syntheses and crystal structures of five compounds, trans-[MCl2(4-Xpy)(2)] (M=Pd, Pt; 4-Xpy=4-halopyridine; X=Cl, Br) and trans-[PdI2(4-Ipy)(2)], are reported. All except trans-[PdCl2(4-Clpy)(2)] adopt crystal structures comprising 1D or 2D networks propagated via intermolecular M-X center dot center dot center dot X'-C halogen bonds. Halogen bond geometries exhibit near linear angles (157-173 degrees) at the organic halogen (C-X') and much smaller angles (85-112 degrees) at the inorganic halogen (M-X), consistent with the behavior of these halogen environments as electrophile and nucleophile, respectively. Powder diffraction studies suggest that these compounds are polymorphic.
引用
收藏
页码：1374 / 1379
页数：6
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