Abstract
The synthesis, spectroscopic characterization, X-ray powder structure determination, and thermal behavior of a binuclear bis(μ-oxo)-bridged vanadium(V) complex, [(VO2L)2], L = N,N‘-dimethylenediamine(o-hydroxyl acetophenon), along with its DNA binding ability and photoinduced DNA cleavage activity, have been described. The compound crystallizes in a monoclinic system with a = 7.679(3) A, b = 12.020(5) A, c = 13.882(6) A, β = 90.799(4)°, space group P21/c, and Z = 2. The crystal structure has been solved from laboratory X-ray powder diffraction data using the direct space approach and refined by the Rietveld method. The dimeric complex consists of two edge-sharing vanadium octahedra with each metal center coordinated to one oxo-, one phenolate-, and two bridging-oxygen ligands, and two nitrogen donor atoms. The molecular structure reveals a two-dimensional grid of (24) rings in the (011) plane, which on combination with one-dimensional polymeric chains along the [100] direction, forms a novel three-dimensi...
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