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Pressure dependence of the low-frequency raman spectra of 4,4'-difluorobenzophenone and 4,4'-dibromobenzophenone

✍ Scribed by D. Kirin; G.S. Pawley


Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
300 KB
Volume
134
Category
Article
ISSN
0009-2614

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✦ Synopsis


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.


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## Abstract The low‐wavenumber (10–200 cm^βˆ’1^) polarized Raman spectra of 4,4′‐dibromobenzophenone single crystal at different temperatures (10–295 K) and far‐infrared spectra (20–200 cm^βˆ’1^) of powdered samples at room temperature were recorded. The assignment of the lattice vibrations based on th

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## Abstract Polarized Raman spectra of single crystals of KIO~4~ and RbIO~4~ were obtained. The observed fundamental modes satisfy the selection rules valid for the scheelite structure. The pressure dependence of the Raman spectra of KIO~4~, which was investigated up to 12 Gpa, reveals a structural