Femtosecond Time-Resolved Photoelectron Angular Distribution Probed During Photodissociation of NO{sub 2}

Journal Article · Sun Jan 02 23:00:00 EST 2000 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.84.5983· OSTI ID:751147

Davies, J A; Continetti, R E; Chandler, D W; Hayden, C C

Femtosecond time-resolved photoelectron angular distributions (PADs) are measured for the first time in the molecular frame of a dissociating molecule. Various stages ofthe dissociation process, N02 -* NO(C 2n) +0(3P), are probed using ionization ofthe NO(C 2I1) fragment to NO+(X !E+). The PADs evolve from forward-backward asymmetric with respect to the dissociation axis at short time-delays (< 500 fs) to symmetric at long time delays (> 1 ps). Changes in the PADs directly reflect the timedependent separation and reorientation of the dissociating photofragments.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 751147
• Report Number(s): SAND2000-8495J
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 26 Vol. 84; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ANGULAR DISTRIBUTION
NITROGEN DIOXIDE
PHOTOELECTRON SPECTROSCOPY
PHOTOLYSIS