Photoinduced electron transfer (ET) and charge shift (CS) processes in a flavin mononucleotide (FMN)-cytochrome c (cyt c)-EDTA solid film hare been investigated by means of picosecond-transient-absorption and fluorescence spectroscopy. Rapid electron transfer between the excited singlet state of FMN
Picosecond laser photolysis studies of intramolecular charge transfer and heteroexcimer formation processes
β Scribed by Masahito Migita; Masafumi Kawai; Noboru Mataga; Yoshiteru Sakata; Soichi Misumi
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 443 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Intramolecular charge transfer and heteroexcimer formation processes
in the excited state of (CH3)2N-C6&-(CHl)ncl-pyretiyi) <pn) have been investigated by means of picosecond laser photolysis. It has been demonstrated directly that photoinduced charge transfer produces at first a heteroexcimer with Ioose structure which is followed by a structural change to the one of sandwich type in the case of P3 in 2-propanol.
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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 geminat
In~mol~~ 2pn\* + 3dn charge transfer in the excited state of phenyl~e occurs very rapidly (<IO ps) both in ?&Fat 293 K and in EPA glass at 77 K. At room temperature a Iong;lived 425 nm transient (which is assgned to a reananged intermediate) is produced with a nse time of 30 ps, showing that the tra