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 journalArticle

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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

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Fluorescence spectroscopy
Nitric Oxide
Pyrolysis
Lasers
Iodides
Iodine
Energy transfer
Orbits
Cooling

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Studies of radicals generated in supersonic flash pyrolysis by laser induced fluorescence spectroscopy. / Kini, Hee Kyung; Kvon, Han Cheol; Park, Jong Ho; Choi, Young Sang; Choi, Jong-Ho.

In: Bulletin of the Korean Chemical Society, Vol. 20, No. 12, 20.12.1999, p. 1441-1446.

Research output: Contribution to journalArticle

Kini, Hee Kyung ; Kvon, Han Cheol ; Park, Jong Ho ; Choi, Young Sang ; Choi, Jong-Ho. / Studies of radicals generated in supersonic flash pyrolysis by laser induced fluorescence spectroscopy. In: Bulletin of the Korean Chemical Society. 1999 ; Vol. 20, No. 12. pp. 1441-1446.
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