A new CoⅡ coordination complex, namely [Co（iba）（N3）]n, was prepared by the hydrothermal reaction of Co（NO3）2·6H2O with Na N3 in the presence of 4-imidazol-1-yl-benzoic acid（Hiba）. Compound 1 crystallizes...A new CoⅡ coordination complex, namely [Co（iba）（N3）]n, was prepared by the hydrothermal reaction of Co（NO3）2·6H2O with Na N3 in the presence of 4-imidazol-1-yl-benzoic acid（Hiba）. Compound 1 crystallizes in orthorhombic, space group Pbca with a = 6.782（2）, b = 19.93（5）, c = 15.96（4） A, V = 2157.2（3） A3, Z = 8, C10H7O2N5 Co, Mr = 228.14, Dc = 1.774 g/cm^3, F（000） = 1160, μ（Mo Kα） = 1.592 mm-1. The final R and w R are 0.0706 and 0.1990 for 1160 observed reflections with I 2σ（I）. Each iba- coordinates in a bidentate fashion with two CoⅡ ions and every two adjacent CoⅡ ions were connected by one azido ion to form a 3D two-fold interpenetrating framework. Thermogravimeteric analysis（TGA） of compound 1 reveals that the loss of moiety of azido ion occurs from 200 oC to about 260 oC and the framework begins to decompose above 300 oC. The magnetic property investigation of compound 1 demonstrates that it displays ferromagnetic coupling between CoⅡ ions.展开更多
Self-assembly of pyta （pyta = N-（4-pyridylmethyl） triazole） with Ag（I） center by layer-separating diffusion method at ambient temperature gives rise to a new supramolecular [Ag（p-pyta）CIO4]n which has been cha...Self-assembly of pyta （pyta = N-（4-pyridylmethyl） triazole） with Ag（I） center by layer-separating diffusion method at ambient temperature gives rise to a new supramolecular [Ag（p-pyta）CIO4]n which has been characterized by single-crystal X-ray diffraction. The polymer crystallizes in a hexagonal space group R-3 with a = 22.456（7）, b = 22.456（7）, c = 14.570（1） A, V= 6363（6） A3, Z = 4, C36H36Ag4.5C14.5N18O18, Mr = 1653.77, Dc = 1.726 g/cm3, F（000） = 3240, μ（MoKa） = 1.625 mm^-1, the final R = 0.0449 and wR = 0.1397 for 2744 observed reflections with I〉2σ（I）.展开更多
基金supported by the Natural Science Foundation of Shanxi(2012021005-2)Technology Foundation for Selected Overseas Chinese Scholar of Shanxi
文摘A new CoⅡ coordination complex, namely [Co（iba）（N3）]n, was prepared by the hydrothermal reaction of Co（NO3）2·6H2O with Na N3 in the presence of 4-imidazol-1-yl-benzoic acid（Hiba）. Compound 1 crystallizes in orthorhombic, space group Pbca with a = 6.782（2）, b = 19.93（5）, c = 15.96（4） A, V = 2157.2（3） A3, Z = 8, C10H7O2N5 Co, Mr = 228.14, Dc = 1.774 g/cm^3, F（000） = 1160, μ（Mo Kα） = 1.592 mm-1. The final R and w R are 0.0706 and 0.1990 for 1160 observed reflections with I 2σ（I）. Each iba- coordinates in a bidentate fashion with two CoⅡ ions and every two adjacent CoⅡ ions were connected by one azido ion to form a 3D two-fold interpenetrating framework. Thermogravimeteric analysis（TGA） of compound 1 reveals that the loss of moiety of azido ion occurs from 200 oC to about 260 oC and the framework begins to decompose above 300 oC. The magnetic property investigation of compound 1 demonstrates that it displays ferromagnetic coupling between CoⅡ ions.
基金Supported by Shanxi Scholarship Council of China and Technology Foundation for Selected Overseas Chinese Scholar of Shanxi
文摘Self-assembly of pyta （pyta = N-（4-pyridylmethyl） triazole） with Ag（I） center by layer-separating diffusion method at ambient temperature gives rise to a new supramolecular [Ag（p-pyta）CIO4]n which has been characterized by single-crystal X-ray diffraction. The polymer crystallizes in a hexagonal space group R-3 with a = 22.456（7）, b = 22.456（7）, c = 14.570（1） A, V= 6363（6） A3, Z = 4, C36H36Ag4.5C14.5N18O18, Mr = 1653.77, Dc = 1.726 g/cm3, F（000） = 3240, μ（MoKa） = 1.625 mm^-1, the final R = 0.0449 and wR = 0.1397 for 2744 observed reflections with I〉2σ（I）.
