Radical adducts of fullerenes C[sub 60] and C[sub 70] studied by laser flash photolysis and pulse radiolysis

Journal Article · Thu Jan 21 04:00:00 EST 1993 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100105a014· OSTI ID:6304404

Dimitrijevic, N M; Kamat, P V; Fessenden, R W ^[1]

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1. Univ. of Notre Dame, IN (United States)

The reaction of organic radicals (R[sup [sm bullet]] = benzyl, tert-butyl, trichloromethyl) with C[sub 60] and C[sub 70] has been investigated using laser flash photolysis and pulse radiolysis techniques. The alkyl radicals are very reactive toward fullerenes and form radical adducts, (RC[sub 60])[sup [sm bullet]] and (RC[sub 70])[sup [sm bullet]]. The difference absorption spectrum of (RC[sub 60][sup [sm bullet]]) exhibits broad absorption in the visible, while that of (RC[sub 70])[sup [sm bullet]] exhibits bleaching of absorption in the region 440-560 nm. The rate constants for the reaction of these radicals with fullerenes are in the range of 10[sup 8] M[sup [minus]1] s[sup [minus]1] for dichloromethyl to diffusion controlled for tert-butyl radicals. 30 refs., 6 figs., 1 tab.

• OSTI ID: 6304404
• Journal Information: Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 97:3; ISSN JPCHAX; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400500* -- Photochemistry
400600 -- Radiation Chemistry
ABSORPTION SPECTROSCOPY
ADDUCTS
ALKYL RADICALS
BLEACHING
BUTYL RADICALS
CARBON
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DECOMPOSITION
DIFFUSION
ELECTROMAGNETIC RADIATION
ELEMENTS
FULLERENES
KINETICS
LASER RADIATION
NONMETALS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADIATION EFFECTS
RADIATIONS
RADICALS
RADIOLYSIS
REACTION KINETICS
SPECTROSCOPY