Redetermination of the crystal structure of caesium tetra-fluorido-bromate(III) from single-crystal X-ray diffraction data.

Autor: Malin AV; National Research Tomsk Polytechnic University, 30 Lenina avenue, 634050 Tomsk, Russian Federation., Ivlev SI; Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany., Ostvald RV; National Research Tomsk Polytechnic University, 30 Lenina avenue, 634050 Tomsk, Russian Federation., Kraus F; Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany.
Jazyk: angličtina
Zdroj: IUCrData [IUCrdata] 2020 Jan 31; Vol. 5 (Pt 1), pp. x200114. Date of Electronic Publication: 2020 Jan 31 (Print Publication: 2020).
DOI: 10.1107/S2414314620001145
Abstrakt: Caesium tetra-fluorido-bromate(III), CsBrF 4 , was crystallized in form of small blocks by melting and recrystallization. The crystal structure of CsBrF 4 was redetermined from single-crystal X-ray diffraction data. In comparison with a previous study based on powder X-ray diffraction data [Ivlev et al. (2013 ▸). Z. Anorg. Allg. Chem . 639 , 2846-2850], bond lengths and angles were determined with higher precision, and all atoms were refined with anisotropic displacement parameters. It was confirmed that the structure of CsBrF 4 contains two square-planar [BrF 4 ] - anions each with point group symmetry mmm , and a caesium cation (site symmetry mm 2) that is coordinated by twelve fluorine atoms, forming an anti-cubocta-hedron. CsBrF 4 is isotypic with CsAuF 4 .
(© Malin et al. 2020.)
Databáze: MEDLINE
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