Journal article

Publication year: 1991

Pages: 1335-1346

Journal: European journal of solid state and inorganic chemistry

Volume number: 28

Issue number: 6

ISSN: 0992-4361

Publisher: Gauthier-Villars

Abstract: 
Potassium tetrafluoroargentate(III) was prepared by a low temperature method using krypton difluoride as an oxidizer in anhydrous hydrogen fluoride as a solvent. This new synthetic route is yielding KAgF4 in the form of crystals suitable for structural analysis. KAgF4 crystallizes in tetragonal space group I4/mcm with a = 584.7 pm and c = 1155.3 pm; V = 3949.6.10(5) pm3, Z = 4 and d(c) = 3.75 g cm-3. A structure determination using three-dimensional MoK-alpha X-ray data resulted in conventional R and R(w) factors of 0.046 and 0.025 respectively. The anion is essentially square planar with Ag-F distance 188.9(3) pm. Vibrational spectra show negligible solid state interactions and are in accordance with the D4h point symmetry of the AgF4- ion. Predicted Raman active lattice vibrations are observed. Interaction stretching force constants are in agreement with the already observed relative fluoro-basicity of AgF4- and AuF4-.

Harvard Citation style: LUTAR, K., MILICEV, S., ZEMVA, B., MULLER, B., BACHMANN, B. and HOPPE, R. (1991) POTASSIUM TETRAFLUOROARGENTATE (III) - PREPARATION, CRYSTAL-STRUCTURE AND VIBRATIONAL-SPECTRA, European journal of solid state and inorganic chemistry, 28(6), pp. 1335-1346

APA Citation style: LUTAR, K., MILICEV, S., ZEMVA, B., MULLER, B., BACHMANN, B., & HOPPE, R. (1991). POTASSIUM TETRAFLUOROARGENTATE (III) - PREPARATION, CRYSTAL-STRUCTURE AND VIBRATIONAL-SPECTRA. European journal of solid state and inorganic chemistry. 28(6), 1335-1346.