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Syntheses, magnetic, electrochemical and reactivity properties of dinuclear vanadium(III) complexes
602
Abstracts
K23
SYNTHESES, MAGNETIC, ELECTROCHEMICAL AND REACTIVITY PROPERTIES OF DINUCLEAR VANADIUM(III) COMPLEXES. ~ a , b , B. Moubaraki a and K.S. Murray a aDepartment of Chemistry, Monash University, Clayton, Victoria 3168, Australia. bpresent address: Chemistry Department, Queen's University, Belfast, BT9 5AG, Northern Ireland. Our interest in polynuclear vanadium species is fuelled by the recognition of the occurrence of vanadium in biomolecules such as algal haloperoxidases, marine ascidians and vanadium containing nitrogenase enzymes [1]. Investigating background chemistry on the little studied area of polynuclear V(ffl) and V(IV) species [2] may be relevant to a better understanding of vanadium in biology, although we recognize that, to date, it appears that haloperoxidases are mononuclear with N, O donors [ 1, 3]. We recently reported [4] the preparation and structural characterization of the dinuclear V(III) macrocyclic complex shown in Figure 1.
jp Ld•c(1o)
.p'ccT) C(6)
Figure 1. Molecular structure of the dinuclear cation [V2L(H20)] 4+ This work has been extended in the present study and new preparative routes have been developed which allow the formation of a series of new dinuclear V(III) macrocyclic complexes. The syntheses, magnetic, electrochemical and reactivity properties will be discussed. 1. a) A. Butler and C.J. Carrano, Coord. Chem. Rev., 1991, 109, 61. b) A. Butler and J.V. Walker, Chem. Rev., 1993, 93, 1937. 2. a) D. Rehder, Angew. Chem., Int. Ed. Engl., 1991, 30, 148. b) P. Knopp, K. Wieghardt, B. Nuber, J. Weiss and W.S. Sheldrick, Inorg. Chem., 1990, 29, 263 and references therein. 3. C.J. Carrano, M. Mohan, S.M. Holmes, R. de la Rosa, A. Butler, J.M. Charnock and C.D. Garner, Inorg. Chem., 1994, 33, 646. 4. J.C. Dutton, G.D. Fallon and K.S. Murray, J. Chem. Soc., Chem. Commun., 1990, 64.
Abstracts
K23
SYNTHESES, MAGNETIC, ELECTROCHEMICAL AND REACTIVITY PROPERTIES OF DINUCLEAR VANADIUM(III) COMPLEXES. ~ a , b , B. Moubaraki a and K.S. Murray a aDepartment of Chemistry, Monash University, Clayton, Victoria 3168, Australia. bpresent address: Chemistry Department, Queen's University, Belfast, BT9 5AG, Northern Ireland. Our interest in polynuclear vanadium species is fuelled by the recognition of the occurrence of vanadium in biomolecules such as algal haloperoxidases, marine ascidians and vanadium containing nitrogenase enzymes [1]. Investigating background chemistry on the little studied area of polynuclear V(ffl) and V(IV) species [2] may be relevant to a better understanding of vanadium in biology, although we recognize that, to date, it appears that haloperoxidases are mononuclear with N, O donors [ 1, 3]. We recently reported [4] the preparation and structural characterization of the dinuclear V(III) macrocyclic complex shown in Figure 1.
jp Ld•c(1o)
.p'ccT) C(6)
Figure 1. Molecular structure of the dinuclear cation [V2L(H20)] 4+ This work has been extended in the present study and new preparative routes have been developed which allow the formation of a series of new dinuclear V(III) macrocyclic complexes. The syntheses, magnetic, electrochemical and reactivity properties will be discussed. 1. a) A. Butler and C.J. Carrano, Coord. Chem. Rev., 1991, 109, 61. b) A. Butler and J.V. Walker, Chem. Rev., 1993, 93, 1937. 2. a) D. Rehder, Angew. Chem., Int. Ed. Engl., 1991, 30, 148. b) P. Knopp, K. Wieghardt, B. Nuber, J. Weiss and W.S. Sheldrick, Inorg. Chem., 1990, 29, 263 and references therein. 3. C.J. Carrano, M. Mohan, S.M. Holmes, R. de la Rosa, A. Butler, J.M. Charnock and C.D. Garner, Inorg. Chem., 1994, 33, 646. 4. J.C. Dutton, G.D. Fallon and K.S. Murray, J. Chem. Soc., Chem. Commun., 1990, 64.