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

Authors
Shenhar, R Willner, I Preda, DV Scott, LT Rabinovitz, M
Citation
R. Shenhar et al., Electron photoejection from corannulene dianion and Li+-mediated recombination of the photogenerated species, J PHYS CH A, 104(46), 2000, pp. 10631-10636
Citations number
22
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF PHYSICAL CHEMISTRY A
ISSN journal
10895639 → ACNP
Volume
104
Issue
46
Year of publication
2000
Pages
10631 - 10636
Database
ISI
SICI code
1089-5639(20001123)104:46<10631:EPFCDA>2.0.ZU;2-Y
Abstract
The antiaromatic corannulene dianion, Cor(2-), undergoes photoejection of a n electron to yield an intimate cage complex of Cor(.-) and the electron. P art 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 recombinatio n of the later products proceeds with a bimolecular rate constant correspon ding to k(rec)(2) = 1.3 x 10(9) M-1 s(-1). Time-resolved laser flash-photol ysis and FT-EPR experiments are used to characterize the transient species.