Abstract
An oxo-bridged dinuclear oxovanadium(V) complex, [V2O2(μ-O)(L1)2] (1) [H2L1 = 3-nitrobenzoic acid (1-methyl-3-oxobutylidene)hydrazide], and a mononuclear oxovanadium(V) complex, [VO(OMe)(L2)] (2) [H2L2 = 3-hydroxynaphthalene-2-carboxylic acid (1-methyl-3-oxobutylidene)hydrazide], were prepared by the reactions of [VO(acac)2] with H2L1 and H2L2, respectively, in methanol. Both complexes were characterized by elemental analysis, IR spectra, and single crystal X-ray crystallography. The crystal of 1 crystallizes in the monoclinic space group P2/n, with a = 13.116(3) A, b = 7.597(2) A, c = 13.927(2) A, β = 104.851(2)°, V = 1341.4(5) A3, Z = 2. The crystal of 2 crystallizes in the triclinic space group \(P\overline 1 \), with a = 7.897(2) A, b = 9.690(2) A, c = 11.576(3) A, α = 86.405(2)°, β = 70.597(2)°, γ = 85.991(2)°, V = = 832.7(3) A3, Z = 2. The V atoms in the complexes have square pyramidal environment. The substituent groups attached to the aromatic rings can influence the self-assembly of the complexes.
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