Fluoride crystal structures. Part 28. Bis(tetraethylammonium)µ-oxo-bis[pentafluorotantalate(V)]

Autor:	Anthony J. Edwards, Jean Y. Calves, John C. Dewan, Jacques E. Guerchais
Rok vydání:	1977
Předmět:	chemistry.chemical_compound Crystallography Tetraethylammonium Octahedron chemistry Fluorine Tantalum chemistry.chemical_element General Chemistry Crystal structure Fluoride Monoclinic crystal system Diffractometer
Zdroj:	J. Chem. Soc., Dalton Trans.. :978-980
ISSN:	1364-5447 0300-9246
DOI:	10.1039/dt9770000978
Popis:	The structure of the title compound has been determined by the heavy-atom method from 1 267 reflections, measured with a diffractometer, and refined by full-matrix least-squares methods to R 0.069. Crystals are monoclinic, space group P21/n, a= 8.57(1), b= 13.68(2), c= 11.79(2)A, β= 96.1 (1)°, Z= 2. In the structure two tetraethylammonium ions counterbalance each [Ta2OF10]2– complex anion in which the two tantalum atoms are bridged by an oxygen atom (Ta–O 1.875 A; Ta–O–Ta 180° by symmetry); the five remaining octahedral sites around each tantalum atom are occupied by fluorine atoms (mean Ta–F 1.90 A).
Databáze:	OpenAIRE
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