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Raman investigation of phase transition in octafluoronaphthalene crystals

✍ Scribed by Freeman P. Chen; Paras N. Prasad

Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
370 KB
Volume
45
Category
Article
ISSN
0009-2614

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✦ Synopsis

The phase transition in the octafluoronaphthalene crystal is investkated by Raman spectroscopy. Major changes take place in the phonon region while the intramolecular vlkations show only mild effects. The results obtained here are not consistent with the previously reported mechanism of the phase transition. The possl%le nature of the phase transition is discussed to esplain present observations

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## Abstract The __E__~g~ vibration at 1268 cm^βˆ’1^ of cyclohexane is investigated by Raman scattering near the phase transition at 186 K. Within an interval of 1.5 K below the phase transition this band is split into five components with changing intensities. The spectra confirm the existence of a m