One new coordination polymer, namely {[Zn（HL）（Hbipy）]2·3H2O}n（bipy = 4,4A-bipyridine, H4 L = 6-（3＇,4＇-dicarboxyl-phenoxy） isophthalic acid）, has been synthesized through a hydrothermal method and characterized by single-crystal X-ray diffraction, elemental analysis, infrared spectra（IR）, and thermogravimetric（TG） analysis. The crystal structure is of monoclinic, space group P21/n with a = 9.6435（3）, b = 19.8515（7）, c = 12.9731（5） A, β = 103.023（4）o, V = 2419.67（15） A3, C52H38Zn2N4O21, Mr = 1185.6, Z = 2, Dc = 1.619 g/cm^3, F（000） = 1200, μ = 1.083 mm-1, the final R = 0.0443 and w R = 0.1079 for 4269 observed reflections（I 2σ（I）. The compound features a two-dimensional（2D） framework and stabilizes itself by interlayer π···π interactions and innerlayer hydrogen bonds. The 2D layer presents a simple 3-connected 63 topology. Moreover, the thermal dynamic stability and luminescent property of the compound have also been discussed in detail.
Two novel interpenetrating diamond frameworks, namely [Cd（mal）（bix）]n （1）and {[Zn（sub）（bib）]n.H2O}. （2）（H2mal = maleic acid, H2sub = suberic acid, bix = 1,4-bis（imidazol- l-ylmethyl）-benzene, bib = 1,4-bis（N-imidazolyl）butane） were hydrothermally synthesized and characterized by elemental analysis, infrared spectra （IR）, and single-crystal X-ray diffraction. Single-crystal X-ray diffraction analysis reveals that compound 1 crystallizes in the orthorhombic system with space group Pnma and features a 3-fold interpenetrating diamond framework. Compound 2 exhibits a 4-fold interpenetrating diamond network. The luminescent properties of these two compounds have also been investigated in detail.
A new Cd（Ⅱ） coordination polymer, namely {Cd_2（L）（biimpy）（H_2O）}_n（1, H4 L = 3-（3？,5？-dicarboxylphenoxy）phthalic acid, biimpy = 2,6-bis（1-imdazoly）pyridine）, has been successfully synthesized via the hydrothermal reactions of Cd（Ⅱ） ions, H_4L and biimpy. The crystal structure is of triclinic, space group P1 with a = 7.7874（5）, b = 9.9716（5）, c = 18.5278（6） ？, α = 91.327（4）, β = 96.689（4）, γ = 111.896（5）o, V = 1322.39（12） ？~3, C_（27）H_（17）Cd_2N_5O_（10）, M_r = 796.26, Z = 2,D_c = 2.000 g/cm^3, F（000） = 780, μ = 1.679 mm^（-1）, R = 0.0345 and wR = 0.0767 for 3890 observed reflections（I 〉 2s（I））. Single-crystal X-ray structural analysis reveals that compound 1 features a three-dimensional（3D） framework based on two different dinuclear [Cd_2（COO）_2] building subunits, and topological analysis shows that it can be simplified into a binodal（4,6）-connected topological network with the point symbol of {3.4~2.5~2.6}{3~2.4~2.5~2.6~4.7~4.8}. Moreover, the thermal stability and luminescent property of compound 1 were also studied.
A new zinc（Ⅱ） compound, [Zn（BTA）（UCA）]n （1, HBTA = 1,2,3-benzotriazole, HUCA = 4-imidazoleacrylic acid）, has been synthesized via the hydrothermal reactions of Zn（OAC）2.2H20, HBTA and HUCA. The crystal structure is of monoclinic, space group P21/c with a = 7.450（3）, b = 18.911 （8）, c = 9.198（4） A, fl = 94.317（8）°, V = 1292.2（9） A3, C12HgNsO2Zn, Mr = 320.63, Z = 4, Dc = 1.648 g/cm3, F（000） = 648,/z = 1.909 mm-1, R= 0.0255 and wR= 0.0655 for 2104 observed reflections （I 〉 2a（/））. Single-crystal X-ray diffraction analysis revealed that compound 1 features a two-dimensional （2D） layered framework based on benzotriazole controlled dinuclear [Zn2（BTA）2] subunits. Furthermore, these 2D layers are threaded into a 3D supramolecular framework via the direction of intermolecular hydrogen bonds and π-π interactions. In addition, the thermal stability and fluorescence property of compound 1 were also investigated.
A new Zn（II） coordination polymer, namely [Zn（Htci）（bib）0.5（H20）]n＇nH20 （1, H3tci = tri（2-carboxyethyl）isocyanurate, bib = 1,4-bis（imidazol-l-ylmethyl）-butane） has been synthesized by combining H3tci and bib ligands with Zn（II） salts under solvothermal conditions. The title compound crystallizes in monoclinic, space group P2 1/c with a = 13.3424（7）, b =7.9051 （5）, c = 20.4650（12） A, fl = 101.935（5）°, V = 2111.8（2） A3, CI7H24N5OI 1Zn, Mr = 539.8, Z = 4, Dc = 1.698 g/cm3, F（000）= 1116,/z = 1.236 mm-1, the final R = 0.0398 and wR = 0.00879 for 3722 observed reflections （I 〉 2σ（/））. 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.
