## Abstract Raman and infrared spectra of NH~4~H~2~(IO~3~)~3~ and KH~2~(IO~3~)~3~ were recorded and analysed. The observed splittings of the stretching modes of IO~3~^โ^ are due to the distortion of the IO~6~ octahedra. In NH~4~H~2~(IO~3~)~3~, the ammonium ion can rotate freely and the NH~4~^+^ gro
Raman spectra and phase transition of ammonium paraperiodate (NH4)2 H3IO6
โ Scribed by H. Poulet; J. P. Mathieu
- Publisher
- John Wiley and Sons
- Year
- 1976
- Tongue
- English
- Weight
- 166 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0377-0486
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๐ SIMILAR VOLUMES
## Abstract Raman spectra of single crystals of NH~4~UO~2~(NO~3~)~3~ are recorded for the temperature range 293โ6 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 spectr
Infrared and polarized Raman spectra of (NH4)JH(S04)1 have been recorded and analysed. Multiple bands are observed for the vibrational modes of SO:-and NH: groups. HSO; and SO:-ions are found to coexist with vibrational interaction between them. NH: ion is not rotating freely in the lattice.