Synthesis, X-ray and spectroscopic characterisation of chromium(III) coordination compounds with benzimidazolic ligands

被引：48
作者：
Ceniceros-Gómez, AE
Barba-Behrens, N
Quiroz-Castro, ME
Bernès, S
Nöth, H
Castillo-Blum, SE
机构：
[1] Univ Nacl Autonoma Mexico, Fac Quim, Dept Quim Inorgan, Mexico City 04510, DF, Mexico
[2] Univ Nacl Autonoma Mexico, Fac Quim, USAI, Mexico City 04510, DF, Mexico
[3] Univ Munich, Inst Inorgan Chem, D-81377 Munich, Germany
来源：
POLYHEDRON | 2000年 / 19卷 / 15期
关键词：
chromium(III) complexes; tris(2-benzimidazolylmethyl)amine; 2-guanidinobenzimidazole; 2,6-bis(2-benzimidazolyl)pyridine; 2-(2-pyridyl)benzimidazole; crystal structures;
D O I：
10.1016/S0277-5387(00)00458-7
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The syntheses and characterisation of chromium(III) complexes with tris(2-benzimidazolylmethyl)amine (ntb), 2-guanidinobenzimidazole (2gb), 2,6-bis(2-benzimidazolyl)pyridine (bbimpy) and 2-(2-pyridyl)benzimidazole (2pb), of composition [Cr(ntb)Cl-2]Cl . 4.5H(2)O (1), [Cr(2gb)(3)]Cl[ZnCl4]. CH3OH (2), [Cr(2gb)(3)]Cl-3. 4H(2)O (3), [Cr-2(2gb)(4)(mu-OH)(2)](ClO4)(4). 5H(2)O (4), [Cr(b-bimpy)Cl-3] (5) and [Cr(2pb)(2)Cl-2]Cl . C2H5OH . 0.5H(2)O (6) are presented. The compounds are obtained from Cr(III) in alcoholic solution, or a Cr(II) aqueous acidic solution. The latter were carried out under air-free conditions. The reaction of 2gb with Cr(II) in aqueous solution yielded a dinuclear compound. The X-ray crystal structures of 1 and 4 are discussed. (C) 2000 Elsevier Science Ltd. All rights reserved.
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页码：1821 / 1827
页数：7
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