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Low‐Frequency Lattice Vibrations in Organic Compounds and the Shpolskii Effect
Author(s) -
Ting ChenHansom,
Kung YuHwa
Publication year - 1972
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.197200008
Subject(s) - chemistry , durene , raman spectroscopy , dissolution , naphthalene , lattice vibration , lattice (music) , crystal structure , spectral line , analytical chemistry (journal) , crystallography , organic chemistry , condensed matter physics , phonon , physics , astronomy , acoustics , optics , catalysis
In the Shpolskii effect, aromatic compounds dissolving in n ‐alkanes of suitable lengths show quasi‐linear absorption and emission spectra when frozen to 77° K . Mixed crystal such as naphthalene dissolving in durene does not show fine structures above 20° K . This difference is likely due to the fact that the lattice vibrations in n ‐alkanes have very low frequencies as shown in their Raman spectra at 77 °K .