Premium
The external lattice vibrations of orthorhombic sulphur
Author(s) -
Arthur J. W.,
Mackenzie G. A.
Publication year - 1974
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.1250020210
Subject(s) - orthorhombic crystal system , raman spectroscopy , chemistry , spectral line , lattice vibration , molecule , lattice (music) , crystal (programming language) , crystallography , crystal structure , molecular physics , nuclear magnetic resonance , atomic physics , physics , condensed matter physics , optics , phonon , quantum mechanics , acoustics , programming language , organic chemistry , computer science
The Raman spectrum of orthorhombic sulphur has been measured in the frequency range 0‐100 cm −1 for all polarisations. The A 1 g ( zz ) and B 1 g ( xy ) spectra have been clarified by later subtraction of unwanted scattering belonging to other polarisations. Definite assignments are made for all but one A 1 g and one B 2 g mode. An interpretation of the intensities observed in the A 1 g and B 1 g spectra is given in terms of the rotational motion of the S 8 molecules affecting their contribution to the crystal polarisability.