Low-frequency raman spectrum and pressure-induced phase transition of crystalline 4,4'-d1chlorobenzophenone
β Scribed by D. Kirin; G.S. Pawley
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 309 KB
- Volume
- 85
- Category
- Article
- ISSN
- 0009-2614
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π SIMILAR VOLUMES
The low-frequency Raman spectra as a function of hydrostatic pressure for 4,4'difluorobenzophenone and 4,4'-dibromobenzophenone are presented. The change observed in some of the Raman bands suggests that the pressure induces changes in the crystal structure.
## Abstract Raman spectra of a 3βmethylβ4βnitropyridine __N__βoxide crystal were investigated as a function of pressure in a diamondβanvil cell up to 93 kbar at room temperature. The crystal shows successive reversible phase transitions at 8, 20 and 60 kbar. Above 60 kbar, all of the external Raman