CRYSTAL STRUCTURE OF RUBIDIUM AND CESIUM TETRAFLUOROINDATE(III) DIHYDRATES
R. L. Davidovich1, V. B. Logvinova1, V. V. Tkachev2, G. V. Shilov2
1Institute of Chemistry, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, Russia
2Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russia
Keywords: индий(III), комплексный фторид, октаэдр, рубидий, цезий, кристаллическая структура, водородная связь, indium(III), fluoride complex, octahedron, rubidium, cesium, crystal structure, hydrogen bond
Abstract
The crystal structures of isostructural fluoride complexes of indium(III) M[InF4(H2O)2] (M = Rb, Cs) crystallizing in the monoclinic system, space group I2/a, are studied. The structures of M[InF4(H2O)2] (M = Rb, Cs) are formed of isolated centrosymmetric complex [InF4(H2O)2]- anions with the trans -position of coordinated H2O molecules and Rb+, respectively Cs+, cations. The In atom in the complex [InF4(H2O)2]- anion is surrounded by four F atoms and two oxygen atoms of coordinated H2O molecules, forming the coordination polyhedron as a slightly distorted octahedron. Via a system of hydrogen O-H⋯F bonds the polyhedra of In atoms are arranged in a three-dimensional framework with the cations located in its channels.
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