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Soft mode in diamantane, C 14 H 20
Author(s) -
Jenkins T. E.
Publication year - 1983
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250140316
Subject(s) - raman spectroscopy , degenerate energy levels , soft modes , mode (computer interface) , symmetry (geometry) , phase transition , phase (matter) , space (punctuation) , materials science , chemistry , crystallography , chemical physics , condensed matter physics , physics , optics , quantum mechanics , computer science , organic chemistry , mathematics , geometry , ferroelectricity , operating system , dielectric
Diamantane (C 14 H 20 ) is a molecular solid which has a second order phase transition at 35K driven by a Raman‐active soft‐mode. There has been some controversy regarding the symmetry of soft‐mode and it is shown that this must be triply degenerate. Possible space groups of the low temperature phase are presented.