Assignment of the Raman active lattice vibrations in various phases of 1,2,4,5-tetrabromobenzene and 1,2,4,5-tetrachlorobenzene crystals | Zendy

Kenneth M. White | Zendy; C. J. Eckhardt | Zendy

Open Access

Assignment of the Raman active lattice vibrations in various phases of 1,2,4,5-tetrabromobenzene and 1,2,4,5-tetrachlorobenzene crystals

Author(s) -

Kenneth M. White,

C. J. Eckhardt

Publication year - 1989

Publication title -

the journal of chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.071

H-Index - 357

eISSN - 1089-7690

pISSN - 0021-9606

DOI - 10.1063/1.456591

Subject(s) - raman spectroscopy , lattice vibration , lattice (music) , crystal structure , crystal (programming language) , vibration , spectroscopy , materials science , chemistry , crystallography , molecular physics , chemical physics , condensed matter physics , physics , optics , phonon , computer science , quantum mechanics , programming language , acoustics

Results of polarized Raman spectroscopy are reported and used to obtain complete assignment of the optical lattice modes of 1,2,4,5‐tetrabromobenzene crystals for both the beta and gamma phases. Similar information is provided for the beta phase of 1,2,4,5‐tetrachlorobenzene crystal. The results are compared with lattice‐dynamics calculations. Discrepancies with previously reported measurements and calculations are discussed and rationalized.

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