摘要
The complex [La2(m-ox){Cr(bipy)(m-ox)(ox)}4(H2O)6]?2.3(H2O) (C58H68.6N8O54.3Cr4La2) 1 has been obtained from the reaction of La(Ⅲ) salt with [Cr(bipy)(ox)2]- (bipy = 2,2?bipyridine and ox = oxalate dianion) building blocks in aqueous solution and structurally characterized by X-ray diffraction analysis. It crystallizes in monoclinic, space group P21/c with a = 10.740(2), b = 17.943(4), c = 22.388(5) ? V = 4314(2) 3, Z = 2, Mr = 2232.43, Dc = 1.719 g/cm3, F(000) = 2234, m(MoKa) = 1.565 cm-1 and T = 293(2) K. With the use of 5202 observed reflections (I > 2s(I)), the structure was refined to R = 0.0742 and wR = 0.1554. Complex 1 shows a two-dimensional open network constructed from hexanuclear {La2Cr4} units through the intermolecular hydrogen interactions.
The complex [La2(m-ox){Cr(bipy)(m-ox)(ox)}4(H2O)6]?2.3(H2O) (C58H68.6N8O54.3Cr4La2) 1 has been obtained from the reaction of La(Ⅲ) salt with [Cr(bipy)(ox)2]- (bipy = 2,2?bipyridine and ox = oxalate dianion) building blocks in aqueous solution and structurally characterized by X-ray diffraction analysis. It crystallizes in monoclinic, space group P21/c with a = 10.740(2), b = 17.943(4), c = 22.388(5) ? V = 4314(2) 3, Z = 2, Mr = 2232.43, Dc = 1.719 g/cm3, F(000) = 2234, m(MoKa) = 1.565 cm-1 and T = 293(2) K. With the use of 5202 observed reflections (I > 2s(I)), the structure was refined to R = 0.0742 and wR = 0.1554. Complex 1 shows a two-dimensional open network constructed from hexanuclear {La2Cr4} units through the intermolecular hydrogen interactions.
基金
The research was supported by the grants from the National Natural Science Foundation of China
the Natural Science Foundation of Fujian Province and the Chinese Academy of Sciences
