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Two Cobalt(Ⅱ) Coordination Polymers Based on Tetrazylphosphonate and Tetrazylphosphonic Acid Ligands 预览
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作者 ZHAO Yu-Chun YAO Lin-Shan +3 位作者 LI Jian-Yue YU Ying-Hui HOU Guang-Feng GAO Jin-Sheng 《结构化学》 SCIE CAS CSCD 2017年第3期453-462,共10页
Two cobalt coordination polymers with the same 2D structure have been hydrothermally synthesized based on two bifunctional ligands with tetrazole and phosphonate(phosphonic acid) groups,namely,diethyl 4-(2H-1,2,3,4-te... Two cobalt coordination polymers with the same 2D structure have been hydrothermally synthesized based on two bifunctional ligands with tetrazole and phosphonate(phosphonic acid) groups,namely,diethyl 4-(2H-1,2,3,4-tetrazol-5-yl) benzylphosphonate(C_2H_5-L1) and 4-(2H-1,2,3,4-tetrazol-5-yl)benzylphosphonic acid(H_2L2). The structures of the two complexes are characterized by elemental analysis,IR,TGA and X-ray single-crystal/powder diffraction. The pink block crystals of complex [Co(L1)(H_2O)]·H_2O(1) belong to the monoclinic system,space group C2/m with a = 20.8390(11),b = 7.2695(3),c = 10.0156(6) ?,β = 109.773(7)o,V = 1427.80(13) ?~3,Z = 4,D_c = 1.680 mg/cm~(-3),M_r = 361.16,F(000) = 740,R = 0.0316 and wR = 0.0826 for 1702 observed reflections(I > 2σ(I)). The purple block crystals of complex [Co(L2)(H_2O)]·2H_2O(2) also belong to the monoclinic system,space group C2/c with a = 25.5382(16),b = 7.3844(3),c = 15.1925(11) ?,β = 124.238(9)o,V = 2368.6(2) ?~3,Z = 8,D_c = 1.969 mg/cm~(-3),M_r = 351.12,F(000) = 1432,R = 0.0475,wR = 0.1617 for 2088 observed reflections(I > 2σ(I)). Both the nitrogen atoms of tetrazole group and oxygen atoms of phosphonate(phosphonic acid) groups in the ligands coordinated with the metal cobalt. The magnetic property of complex 1 is also investigated. 展开更多
关键词 钴配位聚合物 配体 钴() X-射线单晶衍射 二维结构 单斜晶系 元素分析 红外光谱
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