Identity of Transients Formed from Chlorinated Fullerenes in Organic Solvents:  A Pulse Radiolysis Study

• Published in: Journal of physical chemistry (1952) Vol. 100; no. 2; pp. 501 - 506
• Main Authors: Priyadarsini, K. I., Mohan, H., Birkett, P. R., Mittal, J. P.
• Format: Journal Article
• Language: English
• Published: American Chemical Society 11-01-1996
• ISSN: 0022-3654; 1541-5740
• DOI: 10.1021/jp951662r

The UV−vis absorption spectra of chlorinated fullerenes (C60Cl6, C60Cl12) in cyclohexane exhibit bands with λmax = 210 and 255 and shoulders at 275 and 385 nm. The sharpness and molar absorptivity decrease with increase in the number of chlorine atoms. Pulse radiolysis studies of these chlorinated fullerenes were carried out in benzene, 1,2-dichloroethane, and cyclohexane. In benzene, the triplets of chlorinated fullerenes were observed. The radical cations of chlorinated fullerenes, generated in 1,2-dichloroethane, exhibit absorption bands with λmax = 400 nm for C60Cl12 and 380 nm for C60Cl6. In cyclohexane, a slow forming transient at λmax = 430 nm for C60Cl12 and 370 nm for C60Cl6 was generated. These bands appear to be different from the triplet and parent radical cation.