Platinum(II) complexes with bidentate iminopyridine ligands: Synthesis, spectral characterization, properties and structural analysis

被引:15
|
作者
Dehghanpour, Saeed [1 ]
Mahmoudi, Ali [2 ]
Rostami, Soghra [2 ]
机构
[1] Alzahra Univ, Dept Chem, Tehran, Iran
[2] Islamic Azad Univ, Dept Chem, Karaj Branch, Karaj, Iran
关键词
Platinum(II) complexes; Diimine ligands; Spectroscopy; Electrochemistry; Crystal structures; CRYSTAL-STRUCTURE; DIIMINE COMPLEXES; TRANS-ISOMERS; RED FORM; PALLADIUM(II); CIS; ELECTROCHEMISTRY; CYTOTOXICITIES; SPECTROSCOPY; ABSORPTION;
D O I
10.1016/j.poly.2010.04.015
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Four platinum(II) complexes, [PtCl2L] (L = (4-fluorophenyl)pyridin-2-ylmethylene-amine, 1; (4-chlorophenyl)pyridin-2-ylmethyleneamine, 2: (4-bromophenyl)pyridin-2-ylmethyleneamine, 3 and (4-iodophenyl)pyridin-2-ylmethyleneamine, 4) have been synthesized and characterized by CHN analysis, IR and UV-Vis spectroscopy. The crystal structures of 1 and 2 were determined using single crystal X-ray diffraction. The coordination polyhedron about the platinum (II) center in the complexes is best described as distorted square planar. The complexes undergo stacking to form a zigzag Pt center dot center dot center dot Pt center dot center dot center dot Pt chain containing both short (3.57(7) angstrom in 1 and 3.62(8) angstrom in 2) and long (5.16(7) angstrom in 1 and 5.41(9) angstrom in 2) Pt center dot center dot center dot Pt separations through the crystal. The compounds absorb moderately in the visible region, owing to a charge-transfer-to-diimine electronic transition. The redox potentials are approximately insensitive to the substituents on the phenyl ring of the ligands. (C) 2010 Elsevier Ltd. All rights reserved.
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页码:2190 / 2195
页数:6
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