Quenching of NO(D /sup 2/. sigma. /sup +/, E /sup 2/. sigma. /sup +/) formed by UV photodissociation of NOCl

Journal Article · Sat May 01 04:00:00 EDT 1982 · J. Chem. Phys.; (United States)

OSTI ID:5424803

Wilson, M W; Rothschild, M; Muller, D F; Rhodes, C K

The photodissociation of NOCl at 193 nm has resulted in vibrationally excited NO which was subsequently excited to the D(v = 5) and E(v = 0) states. The resulting fluorescence at 160--180 nm has been analyzed in terms of a kinetic model. Saturation of the photodissociation was observed at laser intensities above 2 MW/cm/sup 2/. The quenching rate constants of NO* by Ne, Ar, Kr, and Xe were determined to be k/sub Ne/ = (6.4 +- 1.6) x 10/sup -11/ cm/sup 3/ s/sup -1/, k/sub Ar/ = (1.7 +- 0.4) x 10/sup -10/ cm/sup 3/ s/sup -1/, k/sub Kr/ = (6.6 +- 1.7) x 10/sup -10/ cm/sup 3/ s/sup -1/, and k/sub Xe/ = (1.0 +- 0.2) x 10/sup -9/ cm/sup 3/ s/sup -1/. The quenching by NO and Cl was explained in terms of charge transfer mechanism and the corresponding rate constants were found to be: k/sub NO/ = (2.7 +- 0.6) x 10/sup -9/ cm/sup 3/ s/sup -1/ and k/sub Cl/ = (2.1 +- 0.5) x 10/sup -9/ cm/sup 3/ s/sup -1/.

• Research Organization: Department of Physics, University of Illinois at Chicago Circle, Chicago, Illinois 60680
• OSTI ID: 5424803
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 76:9; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500 -- Photochemistry
640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORINE COMPOUNDS
COLLISIONS
DE-EXCITATION
DECOMPOSITION
ELEMENTS
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
FLUIDS
FLUORESCENCE
GASES
HALOGEN COMPOUNDS
KINETICS
KRYPTON
LUMINESCENCE
MOLECULE COLLISIONS
NEON
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
OXIDES
OXYCHLORIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADIATIONLESS DECAY
RARE GASES
XENON