A new Cu(Ⅱ) coordination polymer [Cu(inio)2(H2O)] (inio = isonicotinic acid N-oxide) with chemical formula C12H10CuN2O7 was prepared and its crystal structure has been determined by X-ray analysis. The complex crysta...A new Cu(Ⅱ) coordination polymer [Cu(inio)2(H2O)] (inio = isonicotinic acid N-oxide) with chemical formula C12H10CuN2O7 was prepared and its crystal structure has been determined by X-ray analysis. The complex crystallizes in the monoclinic system, space group C2/c with a = 12.455(3), b = 6.202(1), c = 16.555(3) ? b = 106.776(3), V = 1224.3(4) 3, Z = 4, Mr = 357.76, Dc =1.941 g/cm3, m(MoKa) = 1.827 mm-1, F(000) = 724, R = 0.0601 and wR = 0.1417 for 908 observed reflections (I > 2s(I)). The Cu(Ⅱ) atom is coordinated by an elongated square pyramid geometry. The deprotonated isonicotinic acid N-oxides form a double-bridge between each pair of Cu(Ⅱ) ions in trans form through two oxygen atoms from the carboxyl groups and two other oxygen atoms from the -NO groups, respectively, which leads to an infinite one dimensional chain. The two adjacent elongated Cu(Ⅱ) square pyramidal geometries are arranged in trans form in the same chain. The OH…O hydrogen bonds extend the chain structure into two-dimensional layers.展开更多
Mi estas kortugite goja havi gancon esprimimian gratulon al la 1-a Azia Kongreso de Es-peranto. Estas la konkreta frukto de la dauraklopodo de Komisiono pri Azia Esperanto-Movado,oficiala komisiono de Universala Es-pe...Mi estas kortugite goja havi gancon esprimimian gratulon al la 1-a Azia Kongreso de Es-peranto. Estas la konkreta frukto de la dauraklopodo de Komisiono pri Azia Esperanto-Movado,oficiala komisiono de Universala Es-peranto-Asocio,stirigita kaj kunordigita de en-erria samideano s-ro TAKEUTI Yosikazu.展开更多
基金the Natural Science Foundation of Xuzhou Normal University (01BXL009)
文摘A new Cu(Ⅱ) coordination polymer [Cu(inio)2(H2O)] (inio = isonicotinic acid N-oxide) with chemical formula C12H10CuN2O7 was prepared and its crystal structure has been determined by X-ray analysis. The complex crystallizes in the monoclinic system, space group C2/c with a = 12.455(3), b = 6.202(1), c = 16.555(3) ? b = 106.776(3), V = 1224.3(4) 3, Z = 4, Mr = 357.76, Dc =1.941 g/cm3, m(MoKa) = 1.827 mm-1, F(000) = 724, R = 0.0601 and wR = 0.1417 for 908 observed reflections (I > 2s(I)). The Cu(Ⅱ) atom is coordinated by an elongated square pyramid geometry. The deprotonated isonicotinic acid N-oxides form a double-bridge between each pair of Cu(Ⅱ) ions in trans form through two oxygen atoms from the carboxyl groups and two other oxygen atoms from the -NO groups, respectively, which leads to an infinite one dimensional chain. The two adjacent elongated Cu(Ⅱ) square pyramidal geometries are arranged in trans form in the same chain. The OH…O hydrogen bonds extend the chain structure into two-dimensional layers.
文摘Mi estas kortugite goja havi gancon esprimimian gratulon al la 1-a Azia Kongreso de Es-peranto. Estas la konkreta frukto de la dauraklopodo de Komisiono pri Azia Esperanto-Movado,oficiala komisiono de Universala Es-peranto-Asocio,stirigita kaj kunordigita de en-erria samideano s-ro TAKEUTI Yosikazu.
