Oksana P Grigorieva, Viktor A Tafeenko, Peter S Berdonosov, Valery A Dolgikh
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引用次数: 0
Abstract
We report the preparation and crystal structure of potassium hafnium pentafluoride, KHfF5, obtained by the hydrothermal technique. The compound crystallizes in the orthorhombic noncentrosymmetric space group P212121, with the unit-cell parameters a = 6.2843 (3), b = 7.8063 (3) and c = 15.8286 (7) Å. Hf atoms are coordinated by eight F atoms, forming square antiprismatic polyhedra. Bonding in pairs, HfF8 antiprisms are interconnected via common F-atom edges and form a double chain of hafnium polyhedra. A comparison of the structure of KHfF5 with other complex fluorides of alkali metals and hafnium, zirconium or terbium(IV) revealed that this compound has no isostructural analogue among the known phases of general composition MIMIVF5.
期刊介绍：
Acta Crystallographica Section C: Structural Chemistry is continuing its transition to a journal that publishes exciting science with structural content, in particular, important results relating to the chemical sciences. Section C is the journal of choice for the rapid publication of articles that highlight interesting research facilitated by the determination, calculation or analysis of structures of any type, other than macromolecular structures. Articles that emphasize the science and the outcomes that were enabled by the study are particularly welcomed. Authors are encouraged to include mainstream science in their papers, thereby producing manuscripts that are substantial scientific well-rounded contributions that appeal to a broad community of readers and increase the profile of the authors.
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