CRYSTAL STRUCTURE OF A [CsK2(m3-DMF)2(m-DMF)3(DMF)4][{Re6(m3-Se)8}Br6] CLUSTER COMPLEX
A. A. Ivanov1, N. V. Kuratieva1,2, M. A. Shestopalov1,2, Yu. V. Mironov1,2
1Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2Novosibirsk National Research State University, Novosibirsk, Russia
Keywords: рений, кристаллическая структура, октаэдрические халькогенидные кластеры, rhenium, crystal structure, octahedral chalcogenide clusters
Abstract
A cluster complex of the composition [CsK2(m3-DMF)2(m-DMF)3(DMF)4][{Re6(m3-Se)8}Br6] is obtained by the reaction of K4[{Re6(m3-Se)8}(OH)6]×8H2O with hydrobromic acid in the presence of CsBr and its subsequent crystallization by diethyl ether diffusion in a dimethylformamide solution. The compound crystallizes in the triclinic space group P , with the following unit cell parameters: a = 13.6169(3) Å, b = 14.7584(4) Å, c = 18.1573(4) Å, a = 103.332(1)°, b = 108.250(1)°, g = 97.371(1)°, V = 3286.55(14) Å3, Z = 2, d calc = 3.130 g/cm3. The crystal structure is built of [{Re6Se8}Br6]3- anionic cluster complexes and complex [CsK2(m3-DMF)2(m-DMF)3(DMF)4]3+ cations.
|
