✦ LIBER ✦

Raman spectra and phase transition of ammonium uranyl nitrate

✍ Scribed by C. Caville

Publisher: John Wiley and Sons
Year: 1977
Tongue: English
Weight: 254 KB
Volume: 6
Category: Article
ISSN: 0377-0486
DOI: 10.1002/jrs.1250060505

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✦ Synopsis

Abstract

Raman spectra of single crystals of NH~4~UO~2~(NO~3~)~3~ are recorded for the temperature range 293–6 K. In various orientations the room temperature spectra are similar to the corresponding isomorphous rubidium and caesium salts. As the crystal is cooled the changes in the Raman spectra indicate a phase transition due to an ordering of the ammonium ions.

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