Mixed-ligand aroylhydrazone complexes of molybdenum: Synthesis, structure and biological activity

被引：61
|
作者：
Pasayat, Sagarika [1 ]
Dash, Subhashree P. [1 ]
Saswati [1 ]
Majhi, Paresh Kumar [1 ]
Patil, Yogesh P. [2 ]
Nethaji, M. [2 ]
Dash, Hirak R. [3 ]
Das, Surajit [3 ]
Dinda, Rupam [1 ]
机构：
[1] Natl Inst Technol, Dept Chem, Rourkela 769008, Orissa, India
[2] Indian Inst Sci, Dept Inorgan & Phys Chem, Bangalore 560012, Karnataka, India
[3] Natl Inst Technol, Dept Life Sci, Rourkela 769008, Orissa, India
来源：
POLYHEDRON | 2012年 / 38卷 / 01期
关键词：
Mixed-ligand aroylhydrazone complexes; Oxomolybdenum(VI); X-ray crystal structure; Antibacterial activity; SPECTROSCOPIC CHARACTERIZATION; DIOXOURANIUM(VI) COMPLEXES; ANTIMICROBIAL ACTIVITY; DIOXOMOLYBDENUM(VI); MONONUCLEAR; REACTIVITY; OXOVANADIUM(V); OXO; EPOXIDATION; CHEMISTRY;
D O I：
10.1016/j.poly.2012.03.007
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The reaction of the benzoylhydrazone of 2-hydroxybenzaldehyde (H2L) with [MoO2(acac)(2)] proceeds smoothly in refluxing ethanol to afford an orange complex [MoO2L(C2H5OH)] (1). The substrate binding capacity of 1 has been demonstrated by the formation and isolation of two mononuclear [MoO2L(Q)] {where Q = imidazole (2a) and 1-methylimidazole (2b)} and one dinuclear [(MoO2L)(2)(Q)] {Q = 4,4'-bipyridine (3)} mixed-ligand oxomolybdenum complex. All the complexes have been characterized by elemental analysis, magnetic and spectroscopic (IR, UV-Vis and NMR) measurements. The molecular structures of all the oxomolybdenum(VI) complexes (1, 2a, 2b and 3) have been determined by X-ray crystallography. In each complex, the dianionic planar ligand is coordinated to the metal centre via one enolate oxygen, one phenolate oxygen and an azomethine nitrogen atom. The complexes have been screened for their antibacterial activity against Escherichia coli, Bacillus and Pseudomonas aeruginosa. The minimum inhibitory concentration of these complexes and their antibacterial activity indicates that compounds 2a and 2b are potential lead molecules for drug designing. (C) 2012 Elsevier Ltd. All rights reserved.
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页码：198 / 204
页数：7
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