Femtosecond time-resolved photoelectron{endash}photoion coincidence imaging studies of dissociation dynamics

Journal Article · Thu Jul 01 00:00:00 EDT 1999 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.479248· OSTI ID:349344

Davies, J A; LeClaire, J E ^[1]; Continetti, R E ^[2]; Hayden, C C ^[1]

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1. Combustion Research Facility, Sandia National Laboratories, P.O. Box 969, Livermore, California 94551-0969 (United States)
2. Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0314 (United States)

We present the first results using a new technique that combines femtosecond pump{endash}probe methods with energy- and angle-resolved photoelectron{endash}photoion coincidence imaging. The dominant dissociative multiphoton ionization (DMI) pathway for NO{sub 2} at 375.3 nm is identified as three-photon excitation to a repulsive potential surface correlating to NO(Cthinsp{sup 2}{Pi})+O({sup 3}P) followed by one-photon ionization to NO{sup +}(Xthinsp{sup 1}{Sigma}{sup +}). Dissociation along this surface is followed on a femtosecond timescale. {copyright} {ital 1999 American Institute of Physics.}

• OSTI ID: 349344
• Journal Information: Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 1 Vol. 111; ISSN JCPSA6; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
COINCIDENCE SPECTROMETRY
DISSOCIATION
MULTI-PHOTON PROCESSES
NITROGEN DIOXIDE
PHOTOELECTRON SPECTROSCOPY
PHOTOIONIZATION