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Titolo:
Evidence for photo-rearranged isomer of 2-(bromomethyl)naphthalene in solution studied by one-color and two-color laser-excitation transient-absorption techniques
Autore:
Nagano, M; Suzuki, T; Ichimura, T;
Indirizzi:
Tokyo Inst Technol, Dept Chem & Mat Sci, Meguro Ku, Tokyo 1528551, Japan Tokyo Inst Technol Tokyo Japan 1528551 , Meguro Ku, Tokyo 1528551, Japan
Titolo Testata:
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
fascicolo: 1, volume: 140, anno: 2001,
pagine: 15 - 20
SICI:
1010-6030(20010413)140:1<15:EFPIO2>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
PHOTOCHEMISTRY; RADICALS; CLEAVAGE;
Keywords:
2-(bromomethyl)naphthalene; photoexcitation; 2-naphthylmethyl radical; photo-rearranged isomer; transient absorption; two-color laser excitation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Ichimura, T Tokyo Inst Technol, Dept Chem & Mat Sci, Meguro Ku, 2-12-1 Ohokayama, Tokyo 1528551, Japan Tokyo Inst Technol 2-12-1 Ohokayama Tokyo Japan 1528551 Japan
Citazione:
M. Nagano et al., "Evidence for photo-rearranged isomer of 2-(bromomethyl)naphthalene in solution studied by one-color and two-color laser-excitation transient-absorption techniques", J PHOTOCH A, 140(1), 2001, pp. 15-20

Abstract

Photochemical reaction of 2-(bromomethyl)naphthalene (2-BMN) in hexane solution was studied at room temperature using one-color and two-color laser excitation transient absorption techniques. After the excitation of 2-BMN with the 308 nm laser, a new transient species, X, which has longer lifetime and a broad absorption band around 340 nm, was found in addition to 2-naphthylmethyl radical (2-NPM). In the two-color laser excitation experiment, 2-NPM turned out to react by the irradiation of the 355 nm light. The excitation of the X species by the 355 nm light led to the generation of 2-NPM. The appropriate candidate for the X species would be the rearranged isomer of2-BMN in view of an ab initio calculation. The production and photoreaction mechanisms were also discussed. (C) 2001 Published by Elsevier Science B.V.

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Documento generato il 26/01/20 alle ore 09:57:20