A set of new transition metal-based coordination complexes dependent upon Hpztza ligand (Hpztza=2-(5-(pyrazin-2-yl)-2H-tetrazol-2-yl) acetic acid)

Add time:08/17/2019    Source:sciencedirect.com

Reaction of MCl2·4H2O (M=Zn, Cd, Mn, Co, Ni ) with 2-(5-(pyrazin-2-yl)-2H-tetrazol-2-yl) acetic acid (Hpztza) yielded a set of new M(II)/pztza complexes, [Cd(pztza)2(H2O)6]·3H2O·(Hpztza) (1), [M(pztza)2(H2O)2] [M=Cd(2), Zn(7), Mn(9)], [Cd(pztza)2]·2(CH3OH) (3), [Co(pztza)2(H2O)2]·6H2O (4), [Co(pztza)(H2O)Cl] (6) and [M(pztza)2(H2O)2]·2H2O [M=Co(5), Zn(8), Ni(10)]. These compounds were structurally characterized by elemental analysis, IR spectroscopy and X-ray single-crystal diffraction. Complex 1 featured a mononuclear structure, complexes 4, 5, 7, 8, 10 showed 1D chains and complexes 2, 3, 6, 9 displayed 2D layer structures. Furthermore, the luminescence properties of 1–10 were investigated at room temperature in the solid state.

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