Energy-dependent cross sections for quenching of Li(2p /sup 2/P) by several gases

Journal Article · Sun Aug 15 00:00:00 EDT 1976 · J. Chem. Phys.; (United States)

OSTI ID:7342786

Lin, S; Weston, Jr, R E

The lifetime of Li(2p /sup 2/P), in the presence of H/sub 2/, D/sub 2/, N/sub 2/, CO, I/sub 2/, CO/sub 2/, C/sub 2/H/sub 4/, C/sub 2/H/sub 6/, and C/sub 2/F/sub 6/ as quenching gases, has been directly determined by the single-photon time-correlation method. Li(/sup 2/P) atoms were produced with varying amounts of translational energy by photodissociation of LiI with light of wavelenghts from 2000 to 2300 A. Large quenching cross sections, comparable to those observed for heavier alkali metal atoms, were found. The results are discussed in terms of an orbiting trajectory model and a ''harpooning'' model. (AIP)

• Research Organization: Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973
• OSTI ID: 7342786
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 65:4; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ALKANES
ALKENES
ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
COLLISIONS
CROSS SECTIONS
CRYOGENIC FLUIDS
DE-EXCITATION
DEUTERIUM
ELEMENTS
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
ETHANE
ETHYLENE
FLUIDS
FLUORESCENCE
FLUORINATED ALIPHATIC HYDROCARBONS
HALOGENATED ALIPHATIC HYDROCARBONS
HALOGENS
HYDROCARBONS
HYDROGEN
HYDROGEN ISOTOPES
IODINE
ISOTOPES
LIGHT NUCLEI
LITHIUM
LUMINESCENCE
METALS
MOLECULE COLLISIONS
NITROGEN
NONMETALS
NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RADIATIONLESS DECAY
STABLE ISOTOPES