Synthesis and Crystal Structures of pH-Dependent Ni(II) Coordination Polymers with 3-Pyrid-3-ylbenzoic Acid |
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| Authors: | Feng Guo |
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| Affiliation: | (1) Department of Chemistry, Dezhou University, Dezhou, 253023, Shandong, People’s Republic of China |
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| Abstract: | Abstract Two pyridinecarboxylato-bridged coordination polymers[Ni(pbc)2(H2O)2]n(1) and {[Ni(pbc) 2 (H2O)]·H2O}n (2)(Hpbc = 3-Pyrid-3-ylbenzoic acid) have been synthesized by the hydrothermal method and characterized by elemental analysis, IR spectrum and single crystal X-ray diffraction. Compound 1 crystallizes in monoclinic, space group P21/c with a = 9.519(5) ?, b = 9.417(5) ?, c = 11.701?, β = 98.086(5)°, V = 1038.5(9) ?3, Z = 2. Compound 2 crystallizes in monoclinic, space group P21/c with a = 10.490(2) ?, b = 12.920(3) ?, c = 16.074?, β = 95.97(3)°, V = 2166.7(8) ?3, Z = 4. X-ray diffraction analysis reveals that all pbc− ligands act as diconnectors to link two Ni(II) centers and adopt one coordination mode: μ2−N, O in compound 1 and the ligands adopt two coordination modes: μ 2 −N, O and μ 3 − N, O, O in compound 2. |
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