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Journal of Structural Chemistry

2011 year, number 3

CRYSTAL STRUCTURES OF LAYERED ZIRCONIUM PENTAFLUORIDES OF METHYLAMMONIUM, GLYCINIUM, AND ОІ-ALANINE

A. V. Gerasimenko, R. L. Davidovich, V. B. Logvinova
Keywords: crystal structure, zirconium fluoride, netlike layer, methylammonium, glycinium, ?-alanine
Pages: 540-546

Abstract

For the first time, new hybrid organic-inorganic layered zirconium pentafluorides of methylammonium, glycinium, and β-alanine with the composition (CH3NH3)ZrF5·0.5H2O, (H3NCH2COOH)ZrF5·2H2O, and (H3N(CH2)2COOH)ZrF5 are synthesized and their structures are analyzed. In the studied compounds, CN of the Zr atom is 8, and its coordination polyhedron represents a dodecahedron sharing its 6 vertex with three neighboring Zr polyhedra. The Zr dodecahedra are joined with each other in planar netlike anion layers of the composition . The anion layers are hydrogen bonded into a three-dimensional structure by H2O cations and molecules.