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Charge-Transfer in Fullerene Complexes

Graja A.

Polish Journal of Chemistry

2002

Vol. 76 / nr 2-3

167-176

Spectral investigations of fullerene charge-transfer complexes with planar and spatial electron-donor molecules are reported. The results of this study indicate that the CT complexes of C60 with planar donors are involved in polarization interactions of van der Waals type. CT is very weak in these compounds and is hindered by unfavourable steric factors. As a result, the CT rate does not correlate with the ionization potential of the donor. Contrary to the planar donors, the spatial ones form complexes with CT rate approaching 1.

Spectral studies of some C-60 complexes with TTF-derived donors

Graja A., Tanatar M.A., Li Y.L., Zhu D.B.

Polish Journal of Chemistry

1998

Vol. 72, nr 5

869-876

Electronic and vibrational spectroscopies were applied to the study of the strength of the donor-acceptor interaction and optical properties of the complexes of C-60 with two TTF-derived donors, i.e. bis(methylthio)ethylenedithio-tetrathiafulvalene (C-1TET- TTF) and tetramethyltetraselenafulvalene (TMTSF). The investigations of the single crystalline samples, for various light polarizations and temperatures, were performed. The analysis of all the spectral data shows that the investigated compounds are weak complexes with a neutral ground state.