Infrared diode laser spectroscopic detection of the propargyl radical produced in a supersonic jet expansion by UV laser photolysis

✍ Scribed by Yoshihiro Sumiyoshi; Takashi Imajo; Keiichi Tanaka; Takehiko Tanaka

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 459 KB
• Volume: 231
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(94)01286-5

✦ Synopsis

The propargyl radical (CH,C-CH ) was produced in a pulsed supersonic jet expansion by the 193 nm excimer laser photolysis of propargyl chloride, and detected by the method of time-resolved infrared diode laser spectroscopy. A rotational temperature of 16 & 4 K was obtained in an experiment in which the 'Q,-branch lines of the us band were observed. The characteristic behavior of the propargyl radical in a supersonic beam produced by circular and slit nozzles was discussed.