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The coordination polymer [Ni(dpa)(bpp)]n(H2dpa = 2,4’-biphenyl-dicarboxylic acid,bpp = 1,3-di(4-pyridyl)propane) was hydrothermally prepared and characterized by single-crystal X-ray diffraction,FTIR spectra,elemental analysis and thermal analysis.The crystal is of triclinic system,space group P1 with a = 12.516(5),b = 12.943(5),c = 15.130(5) ,α = 94.331(5),β = 91.827(5),γ = 108.382(5)°,C54H44N4Ni2O8,Mr = 497.18,V = 2315.3(15) 3,Dc = 1.426 g/cm3,F(000) = 1032,μ = 0.875 cm-1,Z = 2,the final R = 0.0496 and wR = 0.1100 for 5365 reflections with Ⅰ > 2σ(Ⅰ).X-ray diffraction analysis reveals that the carboxylate group of 2,4’-diphenic acids acting as bridging ligands adopts two coordination modes:bis-mondentate and bidentate chelating.The compound exhibits a two-dimensional(6,3)-connected architecture.
The coordination polymer [Ni (dpa) (bpp)] n (H2dpa = 2,4’-biphenyl-dicarboxylic acid, bpp = 1,3-di (4-pyridyl) propane) was hydrothermally prepared and characterized by single-crystal X -ray diffraction, FTIR spectra, elemental analysis and thermal analysis. The crystal is of triclinic system, space group P1 with a = 12.516 (5), b = 12.943 (5), c = 15.130 5 = β = 91.827 (5) γ = 108.382 (5) ° C54H44N4Ni2O8 Mr = 497.18 V = 2315.3 (15) 3 Dc = 1.426 g / cm3 F (000) = 1032 μ = 0.875 cm-1, Z = 2, the final R = 0.0496 and wR = 0.1100 for 5365 reflections with I> 2σ (I). X-ray diffraction analysis reveals that the carboxylate group of 2,4’-diphenic acids acting as bridging ligands adopting two coordination modes: bis-mondentate and bidentate chelating. The compound exhibits a two-dimensional (6,3) -connected architecture.