Luminescence spectra and electronic structure of the UO2F53-ion
- 1 July 1981
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 43 (4) , 933-944
- https://doi.org/10.1080/00268978100101771
Abstract
The luminescence spectra of crystals of M3UO2F5 (M=Cs, Rb, K, Na and NH4) and the polarized absorption spectrum of K3UO2F5 have been measured at temperatures down to 4 K. The lowest excited states have E″1 and E′2 (D 5h ) symmetry, as expected from the model of Denning. The E″1↔A′1 electronic origins are intense, due to the low site symmetry of the uranyl ion. At least four of the six possible vibronic origins due to internal motions of the UO2F5 3- ion are identified. Strong progressions in v 1[vs(O-U-O)] and weak progressions in v 2[vs(U-F)] are based on these vibronic origins. The spectra are compared with those of the D 4h anion UO2Cl4 2-.Keywords
This publication has 12 references indexed in Scilit:
- The electronic structure of the uranyl ionMolecular Physics, 1979
- Absorption and luminescence spectra of [(C2H5)3NH]2UO2Cl4Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics, 1979
- Luminescence spectrum of Cs2UO2Cl4Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics, 1978
- Etude des composes M3UO2F5 (M = K, Rb, Cs, NH4) par spectrophotometries d'absorption i.r. et de diffusion Raman—H. Spectres d'absorption i.r.Spectrochimica Acta Part A: Molecular Spectroscopy, 1976
- The electronic structure of the uranyl ionMolecular Physics, 1976
- Crystallographic study of Rb3UO2F5Journal of Inorganic and Nuclear Chemistry, 1972
- Energy levels and structure of ammonium uranyl fluorideSpectrochimica Acta Part A: Molecular Spectroscopy, 1971
- Ordre et desordre dans la structure cristalline du pentafluoxyuranate de cesiumJournal of Inorganic and Nuclear Chemistry, 1971
- The crystal structure of dicaesium tetrachlorodioxouranium(VI)Acta Crystallographica, 1966
- Crystal chemical studies of the 5f-series of elements. XX. The crystal structure of tripotassium uranyl fluorideActa Crystallographica, 1954