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Electron photoejection from corannulene dianion and Li+-mediated recombination of the photogenerated species

Citation:

R Shenhar, Willner, I. , Preda, DV , Scott, LT , and Rabinovitz, M . 2000. “Electron Photoejection From Corannulene Dianion And Li+-Mediated Recombination Of The Photogenerated Species”. Journal Of Physical Chemistry A, 104, Pp. 10631-10636. doi:10.1021/jp002344h.

Abstract:

The antiaromatic corannulene dianion, Cor2-, undergoes photoejection of an electron to yield an intimate cage complex of Cor.- and the electron. Part of the complex species undergoes cage recombination, k(rec)(1) = 1.1 x 10(6) s(-1), while the other part of complex separates, k(s) = 2.3 x 10(6) s(-1), and yields Cor(.-) and a Li+/e(-) ion pair. Diffusional recombination of the later products proceeds with a bimolecular rate constant corresponding to k(rec)(2) = 1.3 x 10(9) M-1 s(-1). Time-resolved laser flash-photolysis and FT-EPR experiments are used to characterize the transient species.