Studies of radicals generated in supersonic flash pyrolysis by laser induced fluorescence spectroscopy

Hee Kyung Kini, Han Cheol Kvon, Jong Ho Park, Young Sang Choi, Jong Ho Choi

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Laser-induced fluorescence (LIF) spectroscopy has been applied to study the supersonic jet of radicals of nitric oxide (NO) and atomic iodine produced in the flash pyrolysis of precursors n-butylnitrite (CH3(CH2)3ONO) and allyl iodide (C3H5I), respectively. The systematic population analysis with spectral simulations demonstrates that the precursors are efficiently pyrolyzed and that radical beams show a substantial supersonic cooling. In addition, absence of local equilibrium was observed in the distributions of two electronic spin-orbit states 2Π(1/2) and 2Π(3/2) of NO products and can be rationalized in terms of the efficiency of collision-induced energy transfer rates.

Original languageEnglish
Pages (from-to)1441-1446
Number of pages6
JournalBulletin of the Korean Chemical Society
Volume20
Issue number12
Publication statusPublished - 1999 Dec 20

ASJC Scopus subject areas

  • Chemistry(all)

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