Pressure- and Temperature-Induced Phase Transitions in 2,4,6-Trichloro-1,3,5-triazine Crystal

The effects of pressure and temperature on the frequencies and band structures of the Raman active inter- and intramolecular vibrations of 2,4,6-trichloro-1,3,5-triazine crystal were studied. The changes in the Raman frequency, band width, and band structure of both the inter- and intramolecular vib...

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Bibliographic Details
Published in:Bulletin of the Chemical Society of Japan 2001-07, Vol.74 (7), p.1213-1219
Main Authors: Tanaka, Makiko, Kariu, Chinatu, Suzuki, Yoshio, Nibu, Yoshinori, Shimada, Ryoichi, Shimada, Hiroko
Format: Article
Language:English
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Summary:The effects of pressure and temperature on the frequencies and band structures of the Raman active inter- and intramolecular vibrations of 2,4,6-trichloro-1,3,5-triazine crystal were studied. The changes in the Raman frequency, band width, and band structure of both the inter- and intramolecular vibrations induced by changes of pressure and temperature indicate that (1) a displacive phase transition caused by a shear distortion of π-stacked layer structure may take place under about 1.7 GPa at 298 K and (2) the intermolecular nitrogen–chlorine donor–acceptor attractive interactions supporting the extensive network structure in crystal have a direct effect upon the totally symmetric C–Cl stretching vibration.
ISSN:0009-2673
1348-0634
DOI:10.1246/bcsj.74.1213