Synthesis,Structure and Luminescent Property of a New bnn-type Zn(Ⅱ) Coordination Polymer

A new Zn(Ⅱ) coordination polymer, namely [Zn(Htci)(bib)0.5(H2O)]n·nH2O(1, H3 tci = tri(2-carboxyethyl)isocyanurate, bib = 1,4-bis(imidazol-1-ylmethyl)-butane) has been synthesized by combining H3 tci and bib ligands with Zn(Ⅱ) salts under solvothermal conditions. The title compound crystallizes in monoclinic, space group P21/c with a = 13.3424(7), b = 7.9051(5), c = 20.4650(12) , β = 101.935(5)o, V = 2111.8(2) 3, C17H24N5O11 Zn, Mr = 539.8, Z = 4, Dc = 1.698 g/cm3, F(000) = 1116, μ = 1.236 mm-1, the final R = 0.0398 and wR = 0.00879 for 3722 observed reflections(I 2■(I)). X-ray structural analysis reveals that compound 1 exhibits a three-dimensional(3D) pillar-layered framework, and can be simplified into a 5-connected bnn topological network. Moreover, the luminescent properties for compound 1 were also studied at room temperature.