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Dynamics of charge transfer in the excited amine complexes of the fullerenes C60 and C70.: A picosecond laser flash photolysis study

✍ Scribed by D.K. Palit; H.N. Ghosh; H. Pal; A.V. Sapre; J.P. Mittal; Ram Seshadri; C.N.R. Rao

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
353 KB
Volume
198
Category
Article
ISSN
0009-2614

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✦ Synopsis

In benzene solution, C60 and C7o interact weakly in the ground state with amines having favourable oxidation potentials. Picosecond time-resolved absorption measurements show that on photoexcilation, the weak complexes undergo charge separation to produce ion pairs which in turn undergo fast geminate recombination either to produce the triplet state of the fullerenes or give back the ground slate of the complex, depending on the oxidation potential of the amine. Free-ion yield is generally negligible.

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