Interpretation of the vibrational spectrum of crystalline phenanthrene
- 1 December 1976
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 65 (11) , 4693-4700
- https://doi.org/10.1063/1.432920
Abstract
Couplings between inter‐ and intramolecular vibrations have been investigated. In normal‐mode calculations a program has been used which allows all possible couplings between molecular and crystal vibrational modes. Several low‐frequency molecular modes coupled to lattice vibrations have been isolated. A complete assignment of the phenanthrene crystal spectrum is presented and the intermode mixing occurring in the region from 1550 to 1250 cm−1 is discussed.Keywords
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