Laser Chemistry

Laser Chemistry / 1999 / Article
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Proceedings of the Eighth Conference on Time-Resolved Vibrational Spectroscopy

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Volume 19 |Article ID 060362 | https://doi.org/10.1155/1999/60362

Ken Onda, Michio Yaginuma, Akihide Wada, Kazunari Domen, Chiaki Hirose, "Vibrational Relaxation Process of Polyatomic Molecules Adsorbed in Zeolites", Laser Chemistry, vol. 19, Article ID 060362, 4 pages, 1999. https://doi.org/10.1155/1999/60362

Vibrational Relaxation Process of Polyatomic Molecules Adsorbed in Zeolites

Received11 Apr 1997

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.

Copyright © 1999 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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