Photoluminescence study of fullerenes. Total luminescence spectroscopy of C[sub 60] and C[sub 70]

Journal Article · Thu Nov 25 00:00:00 EST 1993 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100149a011· OSTI ID:5423673

Palewska, K; Sworakowski, J; Chojnacki, H ^[1]; Meister, E C; Wild, U P ^[2]

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1. Technical Univ. of Wroclaw (Poland)
2. Swiss Federal Inst. of Technology ETH-Zentrum, Zurich (Switzerland)

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.

• OSTI ID: 5423673
• Journal Information: Journal of Physical Chemistry; (United States), Vol. 97:47; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 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
400201 - Chemical & Physicochemical Properties
400102 - Chemical & Spectral Procedures