摘要:
Five divalent transition metal coordination compounds based on a semirigid tetracarboxylic acid have been synthesized by the hydrothermal method, namely, [MnL(0.5)phen](n) (1), [CdL(0.5)phen](n) (2), [Co(H2L)(phen).2H(2)O] n (3), {[Ni2L(phen) 2(H2O) 6].2H(2)O} n (4) {[Zn2L(phen) 4(H2O) 2].2H(2)O}(n) (5) (H4L = 1,4-bis(4-oxy-1,2-benzene dicarboxylic acid) benzene, phen = 1,10-phenanthroline). These compounds were structurally characterized by infrared spectra, thermogravimetric analyses and single crystal X-ray diffractions. The isostructural 1 and 2 exhibit the two-dimensional layered structures. Compound 3 and 4-5 reveal a mononuclear and two dinuclear structures, respectively. In addition, the magnetic property of 1 and the photoluminescence of 2 and 5 were also investigated, respectively. (C) 2013 Elsevier B.V. All rights reserved.