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Dynamical Properties of NO 2 − Impurity Molecules in Alkali Halides. II. Vibrational Spectra
Author(s) -
Rebane L. A.,
Zavt G. S.,
Haller K. E.
Publication year - 1977
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220810104
Subject(s) - molecule , ultraviolet , spectral line , halide , chemistry , raman spectroscopy , anisotropy , molecular physics , impurity , infrared , raman scattering , alkali metal , materials science , physics , inorganic chemistry , optics , organic chemistry , astronomy , optoelectronics
The first‐order Raman scattering induced by the NO 2 −molecule in KI and RbCl is measured. The spectral features are compared with those observed in the ultraviolet and infrared spectra. The spectral properties are interpreted within the models which take into account the librational motion of the molecule. The force constants connecting the molecule with its neighbours are found to possess high anisotropy. The main spectral features are explained as the result of the modification of the local densities of states and as the manifestations of librational motion.