摘要
Two novel compounds, {[Co2（epda）2（4,4＇-bpy）（H20）z]＇3H20}n 1 and {[Co2（epda）2（bpe）（HzO）z]＇3HzO}n 2 （H2epda = 5-ethyl-pyridine-2,3-dicarboxylic acid, 4,4＇-bpy = 4,4＇-bipyridine and bpe = 1,2-di（4-pyridyl）ethylene） were solvothermally synthesized and charac- terized by elemental analysis, IR spectroscopy, thermogravimetric analysis （TGA）, and single- crystal X-ray diffraction. Complex 1 is ofmonoclinic system, space group P21/c with a = 13.344（5）, b = 14.724（5）, c = 8.267（3） A, fl = 105.840（4）~, V= 1562.5（10） A3, Dc = 1.480 g/cm3, Mr = 375.19, Z = 4, F（000） = 712, gl = 1.121 mm-1, the final R = 0.0512 and wR = 0.1260 for 2890 observed reflections with I 〉 2σ（I）. 2 belongs to the monoclinic system, space group P21/c with a = 14.224（4）, b = 14.726（4）, c = 8.287（2） A,β = 99.696（4）°, V= 1711.1（9） A3, Dc = 1.402 g/cm3, Mr = 388.21, Z = 4, F（000） = 740, kt = 1.027 mm-1, the final R = 0.0354 and wR = 0.0862 for 12237 observed reflections with I 〉 2a（/）. Both complexes present intimately related structures featuring infinite Co-carboxylate layers of [Con（epda）（H20）]n pillared by 4,4＇-bpy （or bpe） molecule to produce the microporous frameworks, Unambiguously indicating that pore dimensions of the framework are regulated by the N,N＇-donor pillars.
Two novel compounds, {[Co2（epda）2（4,4＇-bpy）（H20）z]＇3H20}n 1 and {[Co2（epda）2（bpe）（HzO）z]＇3HzO}n 2 （H2epda = 5-ethyl-pyridine-2,3-dicarboxylic acid, 4,4＇-bpy = 4,4＇-bipyridine and bpe = 1,2-di（4-pyridyl）ethylene） were solvothermally synthesized and charac- terized by elemental analysis, IR spectroscopy, thermogravimetric analysis （TGA）, and single- crystal X-ray diffraction. Complex 1 is ofmonoclinic system, space group P21/c with a = 13.344（5）, b = 14.724（5）, c = 8.267（3） A, fl = 105.840（4）~, V= 1562.5（10） A3, Dc = 1.480 g/cm3, Mr = 375.19, Z = 4, F（000） = 712, gl = 1.121 mm-1, the final R = 0.0512 and wR = 0.1260 for 2890 observed reflections with I 〉 2σ（I）. 2 belongs to the monoclinic system, space group P21/c with a = 14.224（4）, b = 14.726（4）, c = 8.287（2） A,β = 99.696（4）°, V= 1711.1（9） A3, Dc = 1.402 g/cm3, Mr = 388.21, Z = 4, F（000） = 740, kt = 1.027 mm-1, the final R = 0.0354 and wR = 0.0862 for 12237 observed reflections with I 〉 2a（/）. Both complexes present intimately related structures featuring infinite Co-carboxylate layers of [Con（epda）（H20）]n pillared by 4,4＇-bpy （or bpe） molecule to produce the microporous frameworks, Unambiguously indicating that pore dimensions of the framework are regulated by the N,N＇-donor pillars.
基金
supported by the National Natural Science Foundation of China (Nos. 20971064 and 21071074)
the Foundation for University Young Key Teacher by Henan Province (No. 2011GGJS-153)
