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Author Palewska, K. ♦ Sworakowski, J. ♦ Chojnacki, H. ♦ Meister, E. C. ♦ Wild, U. P.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ♦ FULLERENES ♦ PHOTOLUMINESCENCE ♦ SPECTROSCOPY ♦ BENZENE ♦ HEXANE ♦ TOLUENE ♦ ALKANES ♦ ALKYLATED AROMATICS ♦ AROMATICS ♦ CARBON ♦ ELEMENTS ♦ HYDROCARBONS ♦ LUMINESCENCE ♦ NONMETALS ♦ ORGANIC COMPOUNDS 400500* -- Photochemistry ♦ Chemical & Physicochemical Properties ♦ Chemical & Spectral Procedures
Abstract Two-dimensional luminescence and luminescence excitation spectra of C[sub 60] and C[sub 70] fullerenes were recorded in glassy toluene solutions, polycrystalline toluene, and benzene matrices and in a Shpolskii type n-hexane matrix at 77 K. The energies of the lowest excited singlet states of C[sub 60] and C[sub 70] as well as of the lowest triplet state of C[sub 70] were determined experimentally and compared with respective values calculated using a modified INDO method. The calculated S[sub 1]-S[sub 2] energy difference in C[sub 70] was found to be quite large and the S[sub 1]-T[sub 1] splitting in both C[sub 60] and C[sub 70] very small. The spectra exhibit a pronounced dependence on the nature of the solvent used. 25 refs., 9 figs., 1 tab.
ISSN 00223654
Educational Use Research
Learning Resource Type Article
Publisher Date 1993-11-25
Publisher Place United States
Journal Journal of Physical Chemistry
Volume Number 97
Issue Number 47


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