Multiphoton ionization studies of laser induced chemistry in clusters
- Chemical and Biological Physics Section, Oak Ridge National Laboratory, Post Office Box 2008, Oak Ridge, Tennessee 37831-6125 (United States)
Three examples are presented where multiphoton ionization mass spectrometry is used to study photochemistry in clusters. In the first, NO{sup +}(N{sub 2}O{sub 3}){sub m} and NO{sub 2}{sup +}(N{sub 2}O{sub 3}){sub m} are made by 226nm multiphoton ionization of the clusters produced in an expansion of NO/CH{sub 4}/Ar with a trace of H{sub 2}O. Second, H{sub 3}O{sup +}(H{sub 2}O){sub n} and CH{sub 3}OH{sub 2}{sup +}(CH{sub 3}OH){sub n} are observed when sufficiently large clusters of NO(H{sub 2}O){sub m} and NO(CH{sub 3}OH){sub m} are ionized, suggesting laser initiation of intracluster charge transfer reactions in these systems. Thirdly, multiphoton ionization of mixed expansions of NO and Fe(CO){sub 5} leads to the production of (Fe){sub m}{sup +}, (Fe){sub m}{sup +}(CO){sub n}, Fe{sup +}(NO)(CO), Fe{sup +}NO, and FeO{sup +}. The mechanisms for formation of these species will be discussed and analogies drawn between intracluster and collisional chemistry. {copyright} {ital 1997 American Institute of Physics.}
- Research Organization:
- Oak Ridge National Laboratory
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 542102
- Report Number(s):
- CONF-960686--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 388; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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