| Synthesis and Crystal Structure of a Novel 1D Magnesium(II) Coordination Polymer Constructed by L-Cysteic Acid |
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| 作者姓名： | LI Hai-Ye LIAO Bei-Ling JIANG Yi-Min ② ZHANG Shu-Hua LI Jun-Xia |
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| 作者单位： | College of Chemistry and Chemical Engineering，Guangxi Normal University，Guilin 541004，China |
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| 基金项目： | This work was supported by the Natural Science Foundation of Guangxi Province (No. 0339034)，the Science Research Foundation of Guangxi Normal University |
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| 摘 要： | A novel coordination polymer Mg(L)(H2O)2]·H2O] (LH2 = L-cysteic acid) has been synthesized and characterized by elemental analysis, IR and single-crystal X-ray diffraction. The crystal crystallizes in orthorhombic system, space group P212121, with a = 5.962(3), b = 11.224(6), c = 13.664(7) , V = 914.3(8) 3, Z = 4, Mr = 245.50, Dc = 1.783 g/cm3, μ = 0.445 mm–1, flack parameter = 0.32(16), F(000) = 512, the final R = 0.0458 and wR = 0.1172 for 1578 observed reflections with I > 2σ(I). The Mg(II) atom shows an octahedral geometry defined by two carboxyl O atoms from two different L-cysteic acid ligands, one carboxyl O atom and one amino N atom from the adjacent ligand, and two aqua ligands. The Mg(II) atoms are bridged by L-cysteic acid ligands, leading to a 1D infinite zigzag chain. In the structure there are extensive hydrogen bonds, through which the complex completes its 3D framework structure.
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Synthesis and Crystal Structure of a Novel 1D Magnesium(II) Coordination Polymer Constructed by L-Cysteic Acid |
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| Abstract: | A novel coordination polymer Mg(L)(H2O)2]·H2O] (LH2 = L-cysteic acid) has been synthesized and characterized by elemental analysis, IR and single-crystal X-ray diffraction. The crystal crystallizes in orthorhombic system, space group P212121, with a = 5.962(3), b = 11.224(6), c = 13.664(7) , V = 914.3(8) 3, Z = 4, Mr = 245.50, Dc = 1.783 g/cm3, μ = 0.445 mm–1, flack parameter = 0.32(16), F(000) = 512, the final R = 0.0458 and wR = 0.1172 for 1578 observed reflections with I > 2σ(I). The Mg(II) atom shows an octahedral geometry defined by two carboxyl O atoms from two different L-cysteic acid ligands, one carboxyl O atom and one amino N atom from the adjacent ligand, and two aqua ligands. The Mg(II) atoms are bridged by L-cysteic acid ligands, leading to a 1D infinite zigzag chain. In the structure there are extensive hydrogen bonds, through which the complex completes its 3D framework structure. |
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| Keywords: | magnesium(II) complex L-cysteic acid synthesis crystal structure |
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