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Vibrational modes of the anthracene—tetrachlorophthalic anhydride charge-transfer complex

✍ Scribed by M.H. Kuok; S.H. Tang

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
218 KB
Volume
42
Category
Article
ISSN
1386-1425

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✦ Synopsis

Abstraet--Raman and i.r. studies of the anthracene-tetrachlorophthalic anhydride charge-transfer complex have been carried out. Five lattice modes are identified in the low-frequency Raman spectra. The 21 era-t lattice hand is tentatively assigned to the librational vibration of the donor and aeceptor molecules along their stacking axis. The intramolecular modes are assigned on the basis of the free-molecule symmetries Dek and C2v for anthracene and tetrachlorophtbalic anhydride, respectively. The intramolecular frequencies do not change significantly on complexation. This suggests that the molecular symmetry and the force constants between interacting molecules are not greatly affected by the formation of the complex.

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