CRYSTAL STRUCTURE OF NEW AMMONIUM FLUOROINDATE(III) (NH4)2[InF5]
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: синтез, индий(III), комплексный фторид, аммоний, октаэдр, полимерная цепь, кристаллическая структура, synthesis, indium(III), complex fluoride, ammonium, octahedron, polymer chain, crystal structure
Abstract
A new indium(III) fluoride complex with the ammonium cation (NH4)2[InF5] is synthesized and its crystal structure is studied. The structure of (NH4)2[InF5] is formed of cations and complex [InF5]2- anions. The In atom in the complex anion surrounded by four terminal and two bridging F atoms forms an almost regular octahedral coordination polyhedron (CN 6) with two terminal F atoms in the axial positions and two terminal and two bridging F atoms in the equatorial plane. Through bridging F atoms, the InF6 polyhedra are arranged in polymer trans- vertex-connected corrugated anion chains (InF5) directed along the c axis. The N-H⋯F hydrogen bonds organize the chains in a three-dimensional framework.
|
