Lifetime and quenching measurements of C/sub 2/H emission produced by vacuum ultraviolet photolysis of C/sub 2/H/sub 2/. [C/sub 2/H radicals]
Conference
·
OSTI ID:5837818
The state-of-the-art tunable vuv sources are used to produce excited C/sub 2/H photofragments (C/sub 2/H*) via the photolysis of acetylene molecules. The quenching rate constants of the C/sub 2/H emission by a number of species are determined. The collision-free fluorescence lifetimes are measured at different excitation wavelengths. The excitation energy threshold for producing the observed emission is determined. In addition, a correlation between the excitation energy and the emission wavelength is observed. 27 refs., 6 figs., 2 tabs.
- Research Organization:
- Los Alamos National Lab., NM (USA); Fort Lewis Coll., Durango, CO (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5837818
- Report Number(s):
- LA-UR-85-1164; CONF-850345-17; ON: DE85010769
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
ACETYLENE
ALKYNES
CHEMICAL REACTIONS
DATA
DECOMPOSITION
DYE LASERS
ELECTROMAGNETIC RADIATION
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXPERIMENTAL DATA
FLUORESCENCE
HYDROCARBONS
INFORMATION
LASERS
LIQUID LASERS
LUMINESCENCE
NUMERICAL DATA
ORGANIC COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADIATIONS
RADICALS
SCINTILLATION QUENCHING
ULTRAVIOLET RADIATION
400500* -- Photochemistry
ACETYLENE
ALKYNES
CHEMICAL REACTIONS
DATA
DECOMPOSITION
DYE LASERS
ELECTROMAGNETIC RADIATION
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXPERIMENTAL DATA
FLUORESCENCE
HYDROCARBONS
INFORMATION
LASERS
LIQUID LASERS
LUMINESCENCE
NUMERICAL DATA
ORGANIC COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADIATIONS
RADICALS
SCINTILLATION QUENCHING
ULTRAVIOLET RADIATION