Syntheses, Structures, and Luminescent Properties of the ZnⅡ and CdⅡ 1-D Chain Polymers Assembled by Salicylhydroxamic Acid

摘要

Two complexes of compositions [Zn(H2shi)(CH3COO)]n(1) and [Cd(H2shi)2(H2O)]n(2)(H3shi = salicylhydroxamic acid) have been prepared under solvothermal conditions. They are characterized by X-ray single-crystal diffraction, IR and elemental analysis. The crystal of 1 belongs to the tetragonal system, space group I41/a with a = 18.972(3), b = 18.972(3), c = 10.938(2) ?, V = 3937.1(1) ?3, C9H9NO5 Zn, Mr = 276.54, Z = 16, Dc = 1.866 g/cm3, μ = 2.500 mm-1, F(000) = 2240, the final R = 0.0425 and w R = 0.123. The crystal of 2 belongs to the monoclinic system, space group P2/c with a = 16.647(3), b = 6.4577(1), c = 6.5623(1) ?, V = 702.4(2) ?3, C14H14Cd2N2O7, Mr = 434.68, Z = 2, Dc = 2.055 g/cm3, μ = 1.599 mm-1, F(000) = 432, the final R = 0.0211 and w R = 0.0761. They both possess 1-D polymeric chain structures. The luminescent properties of complexes 1 and 2 have been investigated.