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Photophysical and photochemical properties of corannulenes studied by emission and optoacoustic measurements, laser flash photolysis and pulse radiolysis

Authors :
Yamaji, Minoru
Takehira, Kazuyuki
Mikoshiba, Takaaki
Tojo, Sachiko
Okada, Yukihiro
Fujitsuka, Mamoru
Majima, Tetsuro
Tobita, Seiji
Nishimura, Jun
Source :
Chemical Physics Letters. Jul2006, Vol. 425 Issue 1-3, p53-57. 5p.
Publication Year :
2006

Abstract

Abstract: Photophysical and photochemical properties of corannulene (CA) and tetrabromocorannulene (TBCA) in solution were investigated as follows. Spectra, quantum yields and lifetimes of fluorescence in solution at 295K, and spectra and lifetimes of phosphorescence in a rigid matrix at 77K were determined. Phosphorescence at 295K was observed from TBCA. Intersystem crossing yields were determined to be as large as 0.9 by optoacoustic techniques. Triplet–triplet absorption spectra were obtained by laser flash photolysis. Absorption spectra of the radical cation and anion of CA were obtained by pulse radiolysis techniques. [Copyright &y& Elsevier]

Details

Language :
English
ISSN :
00092614
Volume :
425
Issue :
1-3
Database :
Academic Search Index
Journal :
Chemical Physics Letters
Publication Type :
Academic Journal
Accession number :
21190012
Full Text :
https://doi.org/10.1016/j.cplett.2006.04.104