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Title: Syntheses, Raman spectroscopy and crystal structures of alkali hexafluoridorhenates(IV) revisited

The A 2[ReF 6] (A = K, Rb and Cs) salts are isotypic and crystallize in the trigonal space group type P$$\bar{3}$$m1, adopting the K 2[GeF 6] structure type. Common to all A 2[ReF 6] structures are slightly distorted octa­hedral [ReF 6] 2- anions with an average Re—F bond length of 1.951 (8) Å. In these salts, symmetry lowering on the local [ReF 6] 2- anions from O h (free anion) to D 3d (solid-state structure) occur. The distortions of the [ReF 6] 2- anions, as observed in their Raman spectra, are correlated to the size of the counter-cations.
Authors:
 [1] ; ORCiD logo [1] ; ORCiD logo [2] ;  [2] ;  [3] ;  [1]
  1. Univ. of Nevada, Las Vegas, NV (United States). Dept. of Chemistry
  2. Univ. of Nevada, Las Vegas, NV (United States). Dept. of Physics and Astronomy and High Pressure Science and Engineering Center (HiPSEC)
  3. Hanoi Univ. of Science (Vietnam). Dept. of Chemistry
Publication Date:
Grant/Contract Number:
NA0003180
Type:
Accepted Manuscript
Journal Name:
Acta Crystallographica. Section E, Crystallographic Communications
Additional Journal Information:
Journal Volume: 74; Journal Issue: 5; Journal ID: ISSN 2056-9890
Publisher:
International Union of Crystallography
Research Org:
Univ. of Nevada, Las Vegas, NV (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA). Nuclear Science and Security Consortium (NSSC)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; rhenium; fluorine; crystal structure; Raman spectroscopy; isotypism
OSTI Identifier:
1455235