Xe{sup +} formation following photolysis of Au-Xe: A velocity map imaging study

Journal Article · Mon Mar 07 04:00:00 EST 2011 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.3556944· OSTI ID:21560044

Hopkins, W Scott; Woodham, Alex P; Mackenzie, Stuart R ^[1]; Plowright, Richard J; Wright, Timothy G ^[2]

---

1. Department of Chemistry, University of Oxford, Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford OX1 3QZ (United Kingdom)
2. School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD (United Kingdom)

The photodissociation dynamics of Au-Xe leading to Xe{sup +} formation via the {Xi}{sub 1/2}-X{sup 2}{Sigma}{sup +} (v{sup '}, 0) band system (41 500-41 800 cm{sup -1}) have been investigated by velocity map imaging. Five product channels have been indentified, which can be assigned to photoinduced charge transfer followed by photodissociation in either the neutral or the [Au-Xe]{sup +} species. For the neutral species, charge transfer occurs via a superexcited Rydberg state prior to dissociative ionization, while single-photon excitation of the gold atom in Au{sup +}-Xe accesses an (Au{sup +})*-Xe excited state that couples to a dissociative continuum in Au-Xe{sup +}. Mechanisms by which charge transfer occurs are proposed, and branching ratios for Xe{sup +} formation via the superexcited Rydberg state are reported. The bond dissociation energy for the first excited state of Au{sup +}-Xe is determined to be {approx}9720 {+-} 110 cm{sup -1}.

• OSTI ID: 21560044
• Journal Information: Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 9 Vol. 134; ISSN JCPSA6; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BOSONS
BRANCHING RATIO
CHARGE EXCHANGE
CHARGED PARTICLES
CHEMICAL REACTIONS
COLLISIONS
DECOMPOSITION
DIMENSIONLESS NUMBERS
DISSOCIATION
DISSOCIATION ENERGY
ELEMENTARY PARTICLES
ELEMENTS
ENERGY
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
FLUIDS
GASES
GOLD
GOLD IONS
IONIZATION
IONS
MASSLESS PARTICLES
METALS
MOLECULE COLLISIONS
MULTI-PHOTON PROCESSES
NONMETALS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
PHOTON COLLISIONS
PHOTON-MOLECULE COLLISIONS
PHOTONS
RARE GASES
RYDBERG STATES
TRANSITION ELEMENTS
VANADIUM IONS
XENON
XENON IONS