Reactivity of mercury(II) halides with the unsymmetrical phosphorus ylide Ph2PCH2CH2PPh2=C(H)C(O)Ph:: Crystal structure of {HgI2[PPh2CH2CH2PPh2=C(H)C(O)Ph]}n

被引：52
|
作者：
Ebrahim, Mothi Mohamed
Stoeckli-Evans, Helen [1 ]
Panchanatheswaran, Krishnaswamy
机构：
[1] Univ Neuchatel, Inst Microtechnol, CH-2000 Neuchatel, Switzerland
[2] Bharathidasan Univ, Sch Chem, Tiruchirappalli, India
来源：
POLYHEDRON | 2007年 / 26卷 / 14期
关键词：
phosphorus ylides; resonance stabilization; coordination polymer; Mercury(II) complexes;
D O I：
10.1016/j.poly.2007.03.059
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The unsymmetrical phosphorus ylide, Ph2PCH2CH2PPh2=C(H)C(O)Ph is shown to react with Hg(II) halides to form polymeric products with the composition {HgX2[PPh2CH2CH2PPh2C(H)C(O)Ph])(n), where X = Cl (1), Br (2),I (3). The complexes have been characterized by elemental analysis, IR, H-1, P-31 NMR spectra as well as by ESI mass spectra. In product I the ylide exhibits a P, C-bridging mode of coordination, while in 2 and 3 it shows a monodentate P-coordination with the dangling ylide. The structure of complex 3 has been characterized crystal I ographically. The monomeric-Hg-I-Hg-bridging in 3 leads to a zig-zag polymeric chain in which mercury assumes a distorted tetrahedral geometry. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3491 / 3495
页数：5
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