Jansen, Martin and Hagenmayer, Ralf and Korber, Nikolaus (1999) Rb4O6 studied by elastic and inelastic neutron scattering. COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE C-CHIMIE, 2 (11-13). pp. 591-594. ISSN 1387-1609,
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The black rubidium oxide Rb4O6 has been described to be a mixed peroxide-hyperoxide Rb-4(O-2(2-))(O-2(-))(2) in the literature. Previous X-ray diffraction studies on powders and single crystals, however, revealed that Rb4O6 crystallises like cubic Pu2C3 (space group I3d), and has only one crystallographically independent: position for a dumbbell-shaped molecular ion. Elastic neutron scattering now shows that this structure is stable down to 5 K, and no reduction of symmetry nor ordering of the differently sized yet indistinguishable dioxygen anions takes place. The presence of the peroxide and hyperoxide anions in Rb4O6 at 4 K is proved by inelastic neutron scattering, resulting in two absorptions at 750 cm(-1) and 1 130 cm-l, which correspond to the stretching vibrations of O-2(2-) and O-2(-). (C) 1999 Academie des sciences / Editions scientifiques et medicales Elsevier SAS.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CRYSTAL-STRUCTURE; RAMAN-SPECTRA; SUPEROXIDES; rubidium sesquioxide; peroxide; hyperoxide; inelastic neutron scattering; elastic neutron scattering |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Arbeitskreis Prof. Dr. Nikolaus Korber |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 13 Dec 2022 08:00 |
| Last Modified: | 13 Dec 2022 08:00 |
| URI: | https://pred.uni-regensburg.de/id/eprint/48872 |
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