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Two New Coordination Polymers Assembled with a Functionalized Ligand: Syntheses and Crystal Structures |
YUAN Ning;SHENG Tian-Lu;HU Sheng-Min;FU Rui-Biao;WU Xin-Tao |
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on theStructure of Matter, Chinese Academy of Sciences. |
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Abstract Two new transition-metal organic coordination polymers [M(mna)2] (M = Cd (1), Zn (2); mna = 2-mercaptonicotinic anion) have been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction along with IR and elemental analyses. Compound 1 is generally a one-dimensional linear structure bridged through the sulfur donor of mna ligand, while 2 is a one-dimensional zigzag chain ligated via the oxygen donor of mna ligand. These compounds further result in three-dimensional structures via intermolecular π…π stacking interactions and/or hydrogen bonding interactions. The two compounds were structurally determined by single-crystal X-ray diffraction. Complex 1 crystallizes in monoclinic space group P21/c with a = 3.730(3), b = 13.973(12), c = 12.380(11) Å, β = 97.953(18)°, V = 639.0(10) Å 3, Z = 2, CdC 12H 8O 4N 2S 2, Mr = 420.72, Dc = 2.187 g/cm 3, F(000) = 412, Rint = 0.0252, T = 293(2) K, μ = 2.052 mm -1, the final R = 0.0269 and wR = 0.0586 for 1377 observed reflections with I > 2 σ( I). Complex 2 belongs to monoclinic space group P2 1/ c with a = 13.376(2), b = 12.8429(14), c = 7.4856(10) Å, β = 96.190(10)°, V = 1278.5(3) Å 3, Z = 4, ZnC 12H 8O 4N 2S 2, Mr = 373.69, Dc = 1.941 g/cm 3, F(000) = 752, Rint = 0.0414, T = 293(2) K, μ = 2.264 mm -1, the final R = 0.0418 and wR = 0.0966 for 2396 observed reflections with I > 2σ(I).
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Received: 12 April 2011
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Corresponding Authors:
WU Xin-Tao
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