Abstract
A novel binuclear zinc(II) complex [Zn2(azpy)3(2Cl-azpy)2(H2O)6](ClO4)4(azpy)4(H2O)10 (1) (azpy = 4,4′-azopyridine, 2Cl-azpy = (2,6-dichloro)-4,4′-azopyridine) has been synthesized and characterized by single crystal X-ray diffraction, IR and excitation and emission spectra. The Complex 1 crystallizes in the triclinic space group , with a = 10.730(3), b = 15.455(4), c = 18.893(5) Å, α = 73.358(5), β = 87.999(6), γ = 71.865(6)°, V = 2847.7(14) Å3, Z = 1. The azpy ligand links two zinc(II) ions forming a binuclear entity. Each zinc(II) ion lies in a distorted octahedron completed by three oxygen atoms from water molecules and three nitrogen atoms from 4-pyridyl donor groups. Luminescence studies of 1 in aqueous solution show strong blue photoluminescence as the result of fluorescence from an intraligand excited state.
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