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Titolo:
Application of stepwise two-color excitation time-resolved thermal lensingtechnique to the study on excited 2-methylbenzophenone enols
Autore:
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:
ANALYTICAL SCIENCES
, volume: 17, anno: 2001,
pagine: S23 - S25
SICI:
0910-6340(2001)17:<S23:AOSTET>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
ENERGY-TRANSFER; TRIPLET-STATE; QUANTUM YIELD; BENZOPHENONE; HEAT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
11
Recensione:
Indirizzi per estratti:
Indirizzo: Ichimura, T Tokyo Inst Technol, Dept Chem & Mat Sci, Meguro Ku, Tokyo 1528551, Japan Tokyo Inst Technol Tokyo Japan 1528551 Tokyo 1528551, Japan
Citazione:
T. Suzuki e T. Ichimura, "Application of stepwise two-color excitation time-resolved thermal lensingtechnique to the study on excited 2-methylbenzophenone enols", ANAL SCI, 17, 2001, pp. S23-S25

Abstract

Stepwise two-color excitation time-resolved thermal lensing (TC-TRTL) technique was applied to the study on excited state dynamics of transient species. When a XeCl excimer laser and a dye laser pumped by a Nd3+:YAG laser were synchronously irradiated into the sample solution, a thermal lens formedthrough the nonradiative processes for the excited transient was monitoredwith a cw He-Ne laser. Some spatial arrangements for three laser beams were tested to obtain good S/N ratio. The TC-TRTL technique coupled with stepwise two-color excitation transient absorption was successfully applied to the investigation of reaction dynamics on excited states of two kinds of enols (Z- and E-) for 2-methylbenzophenone (MBP). The E-enol was found to intramolecularly react alter the excitation. The heat of reaction was estimatedby the TC-TRTL. The reaction channel was also discussed.

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Documento generato il 14/08/20 alle ore 05:02:04