Metal-phosphine chalcogenide interactions. Crystal structures of palladium(II)/mercury(II) complexes with 1,2-bis(diphenylthiophosphinyl)ethane containing seven-membered metallacyclic rings

被引：19

作者：

Lobana, TS ^{[1
]}

Verma, R

Singh, A

Shikha, M

Castineiras, A

机构：

[1] Guru Nanak Dev Univ, Dept Chem, Amritsar 143005, Punjab, India

[2] Univ Santiago, Fac Farm, Dept Quim Inorgan, E-15706 Santiago, Spain

来源：

POLYHEDRON | 2002年 / 21卷 / 02期

关键词：

phosphine chalcogenide; seven-membered; palladium(II); mercury(II); metallacyclic rings; bis(diphenylthiophosphinyl)ethane;

D O I：

10.1016/S0277-5387(01)00977-9

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

An organophosphorus ligand, namely, 1,2-bis(diphenylthiophosphinyl)ethane {Ph2P(S)-CH2-CH2-P(S)Ph-2; dppeS(2)} reacted with palladium(II) chloride in acetonitrile forming [PdCl2(dppeS(2))](CH3CN) (1). Similarly, it reacted with mercury(II) bromide in acetone to yield HgBr2(dppeS(2)) (2). In these compounds, Pd/Hg are bonded to two S atoms of chelating dppeS(2) ligand and to the respective halogen atoms. The geometry about Pd is distorted square planar with trans-bond angles S(1)-Pd-Cl(1) and S(2)- Pd-Cl(2) being 174.10(5)degrees and 172.85(5)degrees, respectively. The angles about Hg vary in the range 96.20(6)-124.56(4)degrees, suggesting highly distorted geometry about Hg. The bite angle S(1)-Hg-S(2) of the ligand is 118.85degrees in 2 versus 97.76degrees in 1, and it demonstrates large flexibility of alkane moiety and stability of the seven-membered metallacyclic rings formed by dppeS(2). (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：205 / 209

页数：5

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