Synthesis, spectral and EPR studies of oxovanadium(IV) complexes incorporating tridentate ONO donor hydrazone ligands: Structural study of one oxovanadium(V) complex

Seena EB; Mathew N; Kuriakose M; Kurup MRP

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Synthesis, spectral and EPR studies of oxovanadium(IV) complexes incorporating tridentate ONO donor hydrazone ligands: Structural study of one oxovanadium(V) complex

机译：含三齿ONO供体配体的氧钒（IV）配合物的合成，光谱和EPR研究：一种氧钒（V）配合物的结构研究

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Five oxovanadium(IV) complexes of 2-hydroxy-4-methoxybenzaidehyde nicotinic acid hydrazone (H2L1), 2-hydroxy-4-methoxyacetophenone nicotinic acid hydrazone (H2L2) and a binuclear oxovanadium(V) complex of H2L2 have been synthesized. These complexes were characterized by different physicochemical techniques like electronic, infrared and EPR spectral studies. The complexes [VOL1](2) center dot H2O (1) and [VOL2](2-) H2O (4) are binuclear and [VOL(1)bipy] (2), [VOL(1)phen] center dot 1.5H(2)O (3) and [VOL(2)phen] center dot 2H(2)O (6) are heterocyclic base adducts and are EPR active. In frozen DMF at 77 K, all the oxovanadium(IV) complexes show axial anisotropy with two sets of eight line patterns. The complex [(VOL)-L-2 center dot OCH3](2) (5) is an unusual product and has distorted octahedral geometry, as obtained by X-ray diffraction studies. (C) 2008 Elsevier Ltd. All rights reserved.

机译：合成了5种2-羟基-4-甲氧基苯甲酰胺烟酸（H2L1），2-羟基-4-甲氧基苯乙酮烟酸（H2L2）和H2L2的双核氧钒（V）配合物的氧钒（IV）配合物。这些配合物的特征在于不同的物理化学技术，如电子，红外和EPR光谱研究。 [VOL1]（2）中心点H2O（1）和[VOL2]（2-）H2O（4）的复合物是双核的，[VOL（1）bipy]（2），[VOL（1）phen]中心点1.5 H（2）O（3）和[VOL（2）phen]中心点2H（2）O（6）是杂环碱加合物，并且具有EPR活性。在77 K的冷冻DMF中，所有的氧钒（IV）配合物均显示轴向各向异性，具有两组八线图样。复杂的[（VOL）-L-2中心点OCH3]（2）（5）是不寻常的产物，具有扭曲的八面体几何形状，这是通过X射线衍射研究获得的。（C）2008 Elsevier Ltd.保留所有权利。

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《Polyhedron: The International Journal for Inorganic and Organometallic Chemistry》 |2008年第5期|共8页
作者
Seena EB; Mathew N; Kuriakose M; Kurup MRP;
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正文语种 eng
中图分类化学;
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2-hydroxy-4-methoxybenzaldehyde; 2-hydroxy-4-methoxyacetophenone; nicotinoylhydrazide; oxovanadium(IV) complexes; 2; 2 '-bipyridine; 1; 10-phenanthroline; X-ray crystallography; COORDINATION; CHEMISTRY; VANADIUM; ACID;

机译：2-羟基-4-甲氧基苯甲醛;2-羟基-4-甲氧基苯乙酮;烟酰酰肼;氧钒（IV）络合物;2;2'-联吡啶;1;10-菲咯啉;X射线晶体学;配位;化学性质;钒;酸;

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1. Synthesis, spectral and EPR studies of oxovanadium(IV) complexes incorporating tridentate ONO donor hydrazone ligands: Structural study of one oxovanadium(V) complex [J] . Seena EB, Mathew N, Kuriakose M, Polyhedron: The International Journal for Inorganic and Organometallic Chemistry . 2008,第5期

机译：含三齿ONO供体配体的氧钒（IV）配合物的合成，光谱和EPR研究：一种氧钒（V）配合物的结构研究
2. Synthesis, spectral and electrochemical studies of alkoxo-bonded mixed-ligand oxovanadium(IV) and oxovanadium(V) complexes incorporating tridentate ONO donor azophenolalcoholate/aldiminealcoholates [J] . Sharmila Bhattacharya, Tapas Ghosh Transition Metal Chemistry . 2002,第1期

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3. Synthesis, spectral and thermal studies of dimeric five coordinate oxovanadium (IV) complexes of tridentate ONO donor hydrazones [J] . Vinayak M. N., G. T. Kuchinad, S. K. Patil, Der Pharma Chemica: journal for medicinal chemistry, pharmaceutical chemistry and computational chemistry . 2013,第4期

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Synthesis, spectral and EPR studies of oxovanadium(IV) complexes incorporating tridentate ONO donor hydrazone ligands: Structural study of one oxovanadium(V) complex

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