Abstract
Single Crystals of C60/TMPD and C60/TPA have been grown from a chlorobenzene solution. Optical transmission spectra of single crystals of fullerene complexes withN,N,N′,N′-tetramethyl-p-phenylenediamine (TMPD) and triphenylamine (TPA) are studied in the spectral range from 600 to 16000 cm−1. Splitting of the intramolecular vibration of C60 is observed at 1428 cm−1, which is likely caused by freezing of the rotation of the C60 molecules due to their interaction with amines. Single crystals of C60/TMPD differ from those of C60/TPA by a decrease in the vibration frequency at 1428 cm−1, vibrations of the C-C bonds of the TMPD molecule, and the redistribution of the forces of the oscillators of the vibrations of the C-N bonds. These peculiarities are interpreted to be the result of partial electron transfer from TMPD to C60 in the C60/TMPD single crystals. The electron transfer in the C60/TPA system is less pronounced.
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Translated fromIzvestiya akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1459–1464, June, 1996
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Bazhenov, A.V., Maksimuk, M.Y., Fursova, T.N. et al. Spectra of optical phonons and low-energy electronic transitions in C60/TMPD and C60/TPA single crystals. Russ Chem Bull 45, 1389–1393 (1996). https://doi.org/10.1007/BF01434218
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DOI: https://doi.org/10.1007/BF01434218