Abstract
Electronic absorption spectroscopy was used to study the electron processes in the complexes of fullerene with organic donors (9,9′-bis- trans-(telluraxanthenyl), tetranitride tetrasulfur, 2,2′,6,6′-tetraphenyldipyranilydene, tetramethylenedithiodimethyl-tetrathiafulvalene and 2,2′-ethanediylidene bis(4,5-ethylenedithio-1,3-dithiole)). Changes in the electronic absorption spectrum of the fullerene have been investigated and discussed for C 60 complexes with organic donors of various molecular structure and electron-donor properties. The charge transfer between electron donor and C 60 has been observed only for the donor molecules having relatively low first oxidation potentials, thus capable of cation-radical formation. The spectral changes were correlated with the donor properties of the organic molecules forming the complexes with the fullerene.
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