Valence delocalization in a mixed-oxidation divanadium (IV, V) complex electrogenerated from its structurally characterized divanadium (V) analogue with a tridentate (ONO) ligand

被引:145
作者
Dinda, R
Sengupta, P
Ghosh, S [1 ]
Mak, TCW
机构
[1] Indian Assoc Cultivat Sci, Dept Inorgan Chem, Kolkata 700032, W Bengal, India
[2] Chinese Univ Hong Kong, Dept Chem, Shatin, Hong Kong, Peoples R China
关键词
D O I
10.1021/ic010865t
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A new complex containing the {OVv(mu-O)(VO)-O-v}(4+) unit has been synthesized and structurally characterized. Cyclic voltammogram of this complex showed that the two V-V centers of the V2O34+ core are found to undergo electrochemical reduction in two distinctly separate steps not observed previously in similar systems. A rare mixed-oxidation state species [L(O)(VOV)-O-IV(O)L](-) has been electrogenerated from the structurally characterized parent divanadium (V) species in solution state and characterized by IR, EPR, and electronic spectroscopy.
引用
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页码:1684 / +
页数:6
相关论文
共 36 条
[1]  
BABONNEAU F, 1982, NOUV J CHIM, V6, P353
[2]   DIMERIC SQUARE-PLANAR COMPLEXES OF CU(II) WITH AROYL HYDRAZONES [J].
BIRADAR, NS ;
HAVINALE, BR .
INORGANICA CHIMICA ACTA, 1976, 17 (01) :157-160
[3]   VANADIUM PEROXIDE COMPLEXES [J].
BUTLER, A ;
CLAGUE, MJ ;
MEISTER, GE .
CHEMICAL REVIEWS, 1994, 94 (03) :625-638
[4]   Synthesis, structure determination and reactivity of a highly stable vanadium(III) complex [J].
Chatterjee, M ;
Ghosh, S ;
Nandi, AK .
POLYHEDRON, 1997, 16 (17) :2917-2923
[5]   Studies of V(III) complexes with selected α-N-heterocyclic carboxylato NO donor ligands:: structure of a new seven-coordinated pentagonal bipyramidal complex containing picolinato ligands [J].
Chatterjee, M ;
Maji, M ;
Ghosh, S ;
Mak, TCW .
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1998, (21) :3641-3645
[6]   A structural and electrochemical study of some oxovanadium(IV) heterochelate complexes [J].
Chatterjee, M ;
Ghosh, S ;
Wu, BM ;
Mak, TCW .
POLYHEDRON, 1998, 17 (08) :1369-1374
[7]   X-ray crystal structure of [VO(DPA)(H2O)2]•2H2O (DPA = dipicolinate dianion) [J].
Chatterjee, M ;
Ghosh, S ;
Nandi, AK .
TRANSITION METAL CHEMISTRY, 1999, 24 (02) :183-185
[8]   MODELING VANADIUM BROMOPEROXIDASE - SYNTHESIS, STRUCTURE, AND SPECTRAL PROPERTIES OF VANADIUM(IV) COMPLEXES WITH COORDINATED IMIDAZOLE [J].
CORNMAN, CR ;
KAMPF, J ;
LAH, MS ;
PECORARO, VL .
INORGANIC CHEMISTRY, 1992, 31 (11) :2035-2043
[9]   A NOVEL OXO-BRIDGED DINUCLEAR VANADIUM(V,V) COMPLEX OF SCHIFF-BASE AND ITS CONVERSION WITH MONONUCLEAR VANADIUM(IV) COMPLEX [J].
DAI, J ;
AKIYAMA, S ;
MUNAKATA, M ;
MIKURIYA, M .
POLYHEDRON, 1994, 13 (17) :2495-2499
[10]   ANTITUMOR-ACTIVITY AND TOXICITY OF PEROXO HETEROLIGAND VANADATES(V) IN RELATION TO BIOCHEMISTRY OF VANADIUM [J].
DJORDJEVIC, C ;
WAMPLER, GL .
JOURNAL OF INORGANIC BIOCHEMISTRY, 1985, 25 (01) :51-55