Synthesis, crystal structures and spectroscopic studies on trans and cis isomers of Co(II) complexes with 1-benzyl-2-hydroxymethylimidazole

被引：7

作者：

Barszcz, B ^{[1
]}

Glowiak, T

Detka, K

机构：

[1] Jan Kochanowski Univ Humanities & Sci, Inst Chem, PL-25020 Kielce, Poland

[2] Univ Wroclaw, Fac Chem, PL-50383 Wroclaw, Poland

来源：

POLYHEDRON | 2003年 / 22卷 / 10期

关键词：

cis and trans Co(II) isomers; bidentate ligand; crystal structure; UV-Vis and IR spectra;

D O I：

10.1016/S0277-5387(03)00130-X

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

By carrying out the synthesis in a special way, two novel cobalt(II) isomers of trans (O)-[Co(1-Bz-2-CH(2)OHIm)(4)](NO3)(2) (1) and cis(O)-[Co(1-Bz-2-CH(2)OIm)(4)](NO3)(2)(.)1.5H(2)O (2) have been separated. The crystal structures of the Co(II) isomers show the triclinic space group P! (1) and the monoclinic space group C2/c (2). The coordination geometry around the Co atom is approximately octahedral (1) or very distorted octahedral (2) and the Co(II) ions are surrounded by four nitrogen atoms of the four imidazole rings and two oxygen atoms of the hydroxymethyl group. Two of the ligands act as a monodentate and two as a bidentate, forming the five-membered chelate ring with the central ion. The structural data obtained for the Co(II) isomers were confirmed by IR and UV-Vis spectroscopic methods. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：1329 / 1334

页数：6

共 17 条

[1] X-RAY CRYSTALLOGRAPHIC ANALYSIS OF BIS[2-(NORMAL-PROPYLMERCAPTOMETHYL)PYRIDINE]-COPPER(II) DIPERCHLORATE, AND SPECTROSCOPIC AND REDOX PROPERTIES OF ITS RELATED CUIIN2S2 COMPLEXES [J].