Syntheses, structures and properties of five coordinating metallic complexes with the new carboxylate-bis(tetrazolyl)amine ligand
摘要:
Five new coordination compounds based on edtza or (datza)(2) ligands [edtza = ethyl-[N2(N3), N2 '-di(tetrazol-5-yl) amine] acetate and (datza)(2) = [di(tetrazol-5-yl)] amine-N2(N3), N2 '-diacetato anion] [Scheme 1], namely, binuclear cluster [Cd-2(edtza)(4)(H2O)(2)]center dot 2H(2)O (1) and 2-D polymers, [Ca(datza)(H-2 O)]center dot 2H(2)O (2), [M(datza)(H2O)] [M = Co (3), Mn (4)] and [Sr(datza)(H2O)] (5) have been successfully synthesized. They were characterized by elemental analysis, IR and single crystal X-ray diffraction analysis. The different crystal structures were controlled by not only the different coordinating and bridging modes of the edtza or (datza)(2) ligands but also simultaneously the formation of complementary intermolecular hydrogen bonds. Furthermore, the luminescence properties of 1-5 were investigated at room temperature in the solid state. (C) 2014 Elsevier B.V. All rights reserved.