Synthesis and study of trinuclear Pd(II) and Pt(II) complexes with 2-mercaptonicotinic acid -: Crystal and molecular structure of [Pd3(mercaptonicotinic acid)3Cl3]

被引:41
|
作者
Marchal, S
Moreno, V
Aullón, G
Alvarez, S
Quirós, M
Font-Bardia, M
Solans, X
机构
[1] Univ Barcelona, Dept Quim Inorgan, E-08028 Barcelona, Spain
[2] Univ Granada, Dept Quim Inorgan, E-18071 Granada, Spain
[3] Univ Barcelona, Dept Cristallog Mineral & Diposits Minerals, E-08028 Barcelona, Spain
关键词
mercaptonicotinic acid complexes; crystal structure Pd(II) mercaptonicotinic complex; trinuclear palladium complex; trinuclear platinum complex; density functional calculations;
D O I
10.1016/S0277-5387(99)00303-4
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Pd(II) and Pt(II) complexes of 2-mercaptonicotinic acid of formulae [M-3(mercaptonicotinic acid)(3)Cl-3] were synthesized and characterized by the usual spectroscopic techniques including mass spectrometry. The crystal structure was obtained for the palladium complex. The molecule has a ternary symmetry, and mercaptonicotinic acid coordinates in a bidentate (N,S) mode to each palladium ion. The sulfur atom acts as a bridge between two palladium atoms. The fourth coordination site in the plane square geometry of the Pd(II) is occupied by a chloride ion. Identical molecular structure is proposed for the platinum compound in agreement with the spectroscopic and theoretical results. (C) 1999 Elsevier Science Ltd. AII rights reserved.
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页码:3675 / 3682
页数:8
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