摘要
Two coordination polymers, [ML2]n （M = Co （1）, Ni （2）, L = 3-aminobenzoic acid anion）, were synthesized by hydrothermal reaction, and their crystal structures were determined by X-ray diffraction analysis. Both compounds crystallize in monoclinic, space group P21/n with a = 8.8029（8）, b = 4.5297（4）, c = 15.2002（14）A°, β= 105.6280（10）°, C14H12CoN2O4, Mr= 331.19, Z= 2, V = 583.69（9）A°^3 Dc= 1.884 g/cm^3,μ=1.490 mm^-1, F（000） = 338, R = 0.0234 and wR = 0.0679 for 1337 observed reflections （I 〉 2σ（I）） for 1, and a = 8.7501（7）, b = 4.5191（4）, c = 15.1448（12） A°,β = 105.7730（10）° C14H12 NiN2O4, Mr = 330.97, Z = 2, V = 576.31（8）A°3, Dc = 1.907 g/cm^3,μ = 1.703 mm^-1, F（000） = 340, R = 0.0206 and wR = 0.0572 for 1209 observed reflections （I 〉 2σ（I）） for 2. In the title complexes, the M （Ⅱ） ion presents an octahedral geometry with four oxygen donors in the equatorial positions and two nitrogen donors in the axial positions. Each of the complexes has a two-dimensional network structure that is formed by the bridging of the ligand in a μ3-bridging mode via its amino and carboxyl groups.
Two coordination polymers, [ML2]n （M = Co （1）, Ni （2）, L = 3-aminobenzoic acid anion）, were synthesized by hydrothermal reaction, and their crystal structures were determined by X-ray diffraction analysis. Both compounds crystallize in monoclinic, space group P21/n with a = 8.8029（8）, b = 4.5297（4）, c = 15.2002（14）A°, β= 105.6280（10）°, C14H12CoN2O4, Mr= 331.19, Z= 2, V = 583.69（9）A°^3 Dc= 1.884 g/cm^3,μ=1.490 mm^-1, F（000） = 338, R = 0.0234 and wR = 0.0679 for 1337 observed reflections （I 〉 2σ（I）） for 1, and a = 8.7501（7）, b = 4.5191（4）, c = 15.1448（12） A°,β = 105.7730（10）° C14H12 NiN2O4, Mr = 330.97, Z = 2, V = 576.31（8）A°3, Dc = 1.907 g/cm^3,μ = 1.703 mm^-1, F（000） = 340, R = 0.0206 and wR = 0.0572 for 1209 observed reflections （I 〉 2σ（I）） for 2. In the title complexes, the M （Ⅱ） ion presents an octahedral geometry with four oxygen donors in the equatorial positions and two nitrogen donors in the axial positions. Each of the complexes has a two-dimensional network structure that is formed by the bridging of the ligand in a μ3-bridging mode via its amino and carboxyl groups.
基金
This work was supported by the Natural Science Foundation of Guangxi Province (No. 0229004)
