Synthesis, structure and properties of eight novel molybdenum(VI) complexes of the types: [MoO2LD] and [{MoO2L}2D] (L = thiosemicarbazonato ligand, D = N-donor molecule)

被引：13
|
作者：
Vrdoljak, Visnja [1 ]
Dilovic, Ivica [1 ]
Cindric, Marina [1 ]
Matkovic-Calogovic, Dubravka [1 ]
Strukan, Neven [1 ]
Gojmerac-Ivsic, Astrid [1 ]
Novak, Predrag [1 ]
机构：
[1] Univ Zagreb, Fac Sci, Dept Chem, Zagreb 10001, Croatia
来源：
POLYHEDRON | 2009年 / 28卷 / 05期
关键词：
Thiosemicarbazones; Mononuclear and dinuclear; molybdenum(VI) complexes; CIS-DIOXOMOLYBDENUM(VI) COMPLEXES; CRYSTAL-STRUCTURES; SALICYLALDEHYDE; RING; OXOVANADIUM(V); MONONUCLEAR; PARAMETERS; SERIES;
D O I：
10.1016/j.poly.2008.12.058
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Eight new molybdenum(VI) complexes with 4-(diethylamino)salicylaldehyde and 2-hydroxy3-methoxybenzaldehyde thiosemicarbazones have been prepared. They were characterized as mononuclear [MoO2LD] or dinuclear [{RMoO2L}(2)D] complexes. In all the compounds the MoO22+ core is coordinated by a tridentate ONS thiosemicarbazonato ligand and by the N-clonor molecule (imidazole, pyridine or gamma-picoline). All the complexes were characterized by chemical analysis, IR spectroscopy and thermogravimetry. Three of the mononuclear complexes, dioxo[(2-hydroxy-3-methoxybenzaldehyde thiosemicarbazonato)(pyridine)]molybdenum(VI), dioxo[(2-hydroxy-3-methoxybenzaidehyde thiosemicarbazonato)(gamma-picoline)]molybdenum(VI) and dioxo[(2-hydroxy-3-methoxybenzaldehyde thiosemicarbazonato)(imidazole)lmolybdenum(VI) were also characterized by single-crystal X-ray structural analysis. A spectrophotometric method for the determination of molybdenum based on extraction of ion-pairs formed by the cationic surfactant and the [MoO(SCN)(4)](-) anion is described. (C) 2009 Elsevier Ltd. All rights reserved.
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页码：959 / 965
页数：7
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