INFRARED DIODE-LASER SPECTROSCOPIC DETECTION OF THE PROPARGYL RADICALPRODUCED IN A SUPERSONIC JET EXPANSION BY UV LASER PHOTOLYSIS

Authors
SUMIYOSHI Y IMAJO T TANAKA K TANAKA T
Citation
Y. Sumiyoshi et al., INFRARED DIODE-LASER SPECTROSCOPIC DETECTION OF THE PROPARGYL RADICALPRODUCED IN A SUPERSONIC JET EXPANSION BY UV LASER PHOTOLYSIS, Chemical physics letters, 231(4-6), 1994, pp. 569-573
Citations number
14
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
231
Issue
4-6
Year of publication
1994
Pages
569 - 573
Database
ISI
SICI code
0009-2614(1994)231:4-6<569:IDSDOT>2.0.ZU;2-T
Abstract
The propargyl radical (CH2C=CH) was produced in a pulsed supersonic je t expansion by the 193 nm excimer laser photolysis of propargyl chlori de, and detected by the method of time-resolved infrared diode laser s pectroscopy. A rotational temperature of 16+/-4 K was obtained in an e xperiment in which the (r)Q(0)-branch lines of the nu(6) band were obs erved. The characteristic behavior of the propargyl radical in a super sonic beam produced by circular and slit nozzles was discussed.