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Picosecond infrared pump–probe spectrum of D2O adsorbed at acid OD group of zeolite

Picosecond infrared pump–probe spectrum of D2O adsorbed at acid OD group of zeolite

Authors :
Akihide Wada
M. Kashitani
Satoru S. Kano
Kazunari Domen
Chiaki Hirose
M. Ishida
Ken Onda
F. Goto
T. Fujino
Source :
The Journal of Chemical Physics. 109:2460-2466
Publication Year :
1998
Publisher :
AIP Publishing, 1998.

Abstract

Spectroscopic and dynamic features of the vibrationally excited D2O/zeolite system have been investigated by two-color infrared–infrared pump–probe experiment. The frequency- and delay-scanned probe intensities were measured by tuning the pump laser to the OD stretching bands of the D2O molecule hydrogen bonded to the acidic OD group of mordenite zeolite. Two types of pump-induced signals were observed: the ones which have the population lifetime of 43±5 ps and display frequency shift by the pumping frequency, and the others, which have the lifetime of about 15 ps and exhibit no such frequency shift. Possible origins of the signals are discussed.

Details

ISSN :
10897690 and 00219606
Volume :
109
Database :
OpenAIRE
Journal :
The Journal of Chemical Physics
Accession number :
edsair.doi...........2a4e53ceba7de0b03ace16ed15be3955
Full Text :
https://doi.org/10.1063/1.476816