Synthesis and studies of rare acylhydrazine bridged strong antiferromagnetically coupled dicopper(II) and dioxovanadium(V) complexes of a pyridyl-pyrazole derived Schiff base ligand

doi:10.1016/j.poly.2012.07.076

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	Synthesis and studies of rare acylhydrazine bridged strong antiferromagnetically coupled dicopper(II) and dioxovanadium(V) complexes of a pyridyl-pyrazole derived Schiff base ligand
	Jana, Atanu 2; Konar, Saugata 2; Mandal, Tarak Nath 3; Das, Kinsuk 4; Ray, Sangita 2; Sarkar, Ananda 5; Liu, Cai-Ming 1; Kar, Susanta Kumar 2
刊名	POLYHEDRON
	2012-10-09
卷号	46 期号:1 页码:105-112
关键词	Coordination Acylhydrazine Binuclear Copper Complex Binuclear Oxovanadium Complex Crystal Magnetism Dft
ISSN号	0277-5387
DOI	10.1016/j.poly.2012.07.076
英文摘要	A binuclear acylhydrazine bridged Cu(II) complex, [Cu-2(L)(NO3)(3)(H2O)] (1), and an anti-orthogonal binuclear oxovanadium(V) complex, [V2O4(L)(2)] (2), have been synthesized and characterized spectroscopically and crystallographically. The ligand HL has two potentially bridging functional groups (mu-O, mu-N-N) and consequently can exist in the following coordination conformers: (a) metal centers bridged by mu-O, (b) metal centers bridged by mu-N-N. A rare acylhydrazine bridged (a) type configuration exists in the dinuclear Cu(II) complex 1. The bridging ligand mediates a strong antiferromagnetic coupling (J = -99 cm(-1)). The exchange pathway parameters have also been evaluated from density functional theoretical calculations to corroborate the bridging signatures with experimental findings (J = -93.96 cm(-1)). Molecule 2 has a centrosymmetric structure with each vanadium center having a distorted octahedral geometry. It shows a one step irreversible reduction at +0.43 V. The bond angles, bond lengths and torsion angles in 2 are correlated with DFT. (C) 2012 Elsevier Ltd. All rights reserved.
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000311023900014
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/47911]
专题	中国科学院化学研究所
通讯作者	Liu, Cai-Ming
作者单位	1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 2.Univ Calcutta, Univ Coll Sci, Dept Chem, Kolkata 700009, India 3.Korea Res Inst Chem Technol, Taejon 305606, South Korea 4.Haldia Govt Coll, Dept Chem, Debhog 721657, Purba Midnapur, India 5.APC Coll, Kolkata 700131, India
推荐引用方式 GB/T 7714	Jana, Atanu,Konar, Saugata,Mandal, Tarak Nath,et al. Synthesis and studies of rare acylhydrazine bridged strong antiferromagnetically coupled dicopper(II) and dioxovanadium(V) complexes of a pyridyl-pyrazole derived Schiff base ligand[J]. POLYHEDRON,2012,46(1):105-112.
APA	Jana, Atanu.,Konar, Saugata.,Mandal, Tarak Nath.,Das, Kinsuk.,Ray, Sangita.,...&Kar, Susanta Kumar.(2012).Synthesis and studies of rare acylhydrazine bridged strong antiferromagnetically coupled dicopper(II) and dioxovanadium(V) complexes of a pyridyl-pyrazole derived Schiff base ligand.POLYHEDRON,46(1),105-112.
MLA	Jana, Atanu,et al."Synthesis and studies of rare acylhydrazine bridged strong antiferromagnetically coupled dicopper(II) and dioxovanadium(V) complexes of a pyridyl-pyrazole derived Schiff base ligand".POLYHEDRON 46.1(2012):105-112.