Collisional quenching kinetics for the HgCl (B 1/2) state

Journal Article · Fri Sep 15 04:00:00 EDT 1978 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.90438· OSTI ID:6667074

Mandl, A; Parks, J H

Measurements of the rates of collisional quenching of HgCl* (B/sup 2/ ..sigma../sup +//sub 1/2/) by He, Ar, Xe, N/sub 2/, Cl/sub 2/, HCl, and CCl/sub 4/ are reported in this paper. Steady-state measurements are made of HgCl* fluorescence produced by photolyzing HgCl/sub 2/ using Xe/sub 2/* radiation. A background pressure of (Xe)> or =100 Torr ensures that the HgCl* is vibrationally relaxed and all the quenching measurements are from v'=0. He, Ar, and N/sub 2/ showed no quenching for pressures <1000 Torr. Xe, Cl/sub 2/, HCl, and CCl/sub 4/ resulted in two-body quenching rates of 2.4 x 10/sup -13/, 1.3 x 10/sup -10/, 8.6 x 10/sup -11/, and 1.2 x 10/sup -10/ cm/sup 3//sec, respectively. These rates are derived by using an estimated HgCl* (B/sup 2/ ..sigma../sup +//sub 1/2/) lifetime of 29 nsec.

• Research Organization: Avco Everett Research Laboratory, Inc., 2385 Revere Beach Parkway, Everett, Massachusetts 02149
• OSTI ID: 6667074
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 33:6; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular &amp; Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
CARBON TETRACHLORIDE
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHLORIDES
CHLORINATED ALIPHATIC HYDROCARBONS
CHLORINE
CHLORINE COMPOUNDS
COLLISIONS
CRYOGENIC FLUIDS
DECOMPOSITION
ELEMENTS
ENERGY LEVELS
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
FLUIDS
FLUORESCENCE
HALIDES
HALOGEN COMPOUNDS
HALOGENATED ALIPHATIC HYDROCARBONS
HALOGENS
HEAT TREATMENTS
HELIUM
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
LUMINESCENCE
MERCURY CHLORIDES
MERCURY COMPOUNDS
MERCURY HALIDES
MOLECULE COLLISIONS
NITROGEN
NONMETALS
OPTICAL PUMPING
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
QUENCHING
RARE GASES
REACTION KINETICS
VIBRATIONAL STATES
XENON