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Issue 9, 1990
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Synthesis, physical properties and X-ray crystal structure of an oxovanadium(IV) complex of the pendant-arm macrocycle 6,13-dimethyl 1,4,8,11-tetra-azacyclotetradecane-6,13-diamine

Abstract

The pendant-arm macrocyclic hexa-amine 6,13-dimethyl-1,4,8,11-tetra-azacyclotetradecane-6,13-diamine (L2) co-ordinates to the oxovanadium(IV) cation in a quinquedentate manner. The complex [VO(L2)][ClO4]2 crystallises in the monoclinic space group C2/c, a= 25.220(4), b= 10.534(2), c= 16.321 (3)Å, β= 94.53(1)°. The vanadium atom is displaced by 0.397 Å above the macrocyclic plane of four nitrogens towards the oxo ligand, with a pendant amine occupying the trans site. Electron paramagnetic resonance and electronic spectra are consistent with the complex being a vanadyl penta-amine in solution as well as in the solid state.

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Article type: Paper
DOI: 10.1039/DT9900002859
Citation: J. Chem. Soc., Dalton Trans., 1990,0, 2859-2862
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    Synthesis, physical properties and X-ray crystal structure of an oxovanadium(IV) complex of the pendant-arm macrocycle 6,13-dimethyl 1,4,8,11-tetra-azacyclotetradecane-6,13-diamine

    P. V. Bernhardt, G. A. Lawrance, P. Comba, L. L. Martin and T. W. Hambley, J. Chem. Soc., Dalton Trans., 1990, 0, 2859
    DOI: 10.1039/DT9900002859

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