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Titolo:
Vibrational relaxation process of polyatomic molecules absorbed in zeolites
Autore:
Onda, K; Yaginuma, M; Wada, A; Domen, K; Hirose, C;
Indirizzi:
Tokyo Inst Technol, Resources Utilizat Res Lab, Midori Ku, Yokohama, Kanagawa 226, Japan Tokyo Inst Technol Yokohama Kanagawa Japan 226 ohama, Kanagawa 226, Japan
Titolo Testata:
LASER CHEMISTRY
fascicolo: 1-4, volume: 19, anno: 1999,
pagine: 321 - 324
SICI:
0278-6273(1999)19:1-4<321:VRPOPM>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
DENSE MEDIUM; XE;
Keywords:
vibrational relaxation; metal carbonyl; zeolite; infrared; picosecond; solid surface;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Onda, K Tokyo Inst Technol, Resources Utilizat Res Lab, Midori Ku, 4259 Nagatsuta,Yokohama, Kanagawa 226, Japan Tokyo Inst Technol 4259 Nagatsuta Yokohama Kanagawa Japan 226 apan
Citazione:
K. Onda et al., "Vibrational relaxation process of polyatomic molecules absorbed in zeolites", LASER CHEM, 19(1-4), 1999, pp. 321-324

Abstract

The vibrational relaxation lifetimes of the CO stretching mode of Cr(CO)(6) and Mo(CO)(6) adsorbed in the cage of the HY, DY and NaY-type zeolites were measured at various temperature by pump-probe method using picosecond infrared laser pulses. It was shown by comparing the lifetimes that the accepting modes include both the vibrational modes of the metal carbonyl and those associated with the cations on the zeolite surface. The analysis of the temperature dependence of the lifetimes revealed that the number of the excited accepting modes are four with their energy lying around 500 cm(-1).

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Documento generato il 24/09/20 alle ore 23:59:30