Vacuum pyrolysis of CCl3COCl: Matrix-IR and mass spectrometric studies of the intermediates

V. N. Khabashesku, A. K. Maltsev, O. M. Nefedov, I. Bertóti, T. Székely

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Vacuum pyrolysis of trichloroacetyl chloride was studied at 970-1370 K by mass spectrometry and matrix isolation-IR spectroscopy. The pyrolysis experiments were performed in a quartz flow reactor directly connected to the ion source of a quadrupole mass spectrometer or to an optical helium cryostat. The IR spectra of the pyrolysis products, condensed at 12 K in an argon matrix, have revealed the intermediate species: radicals CCl3 and COCl, carbene CCl2 and unstable ketene Cl2CCO. It has also been established that the COCl2, (COCl)2 and C2Cl4 detected are formed in secondary reactions. On the basis of the experimental data obtained, two possible routes for the thermal dissociation of CCl3COCl are proposed, including molecular and radical mechanisms.

Original languageEnglish
Pages (from-to)135-140
Number of pages6
JournalJournal of Analytical and Applied Pyrolysis
Volume13
Issue number1-2
DOIs
Publication statusPublished - 1988

Fingerprint

pyrolysis
Pyrolysis
Vacuum
vacuum
matrices
thermal dissociation
Helium
Quartz
Cryostats
Argon
carbenes
Mass spectrometers
Ion sources
cryostats
ion sources
mass spectrometers
Mass spectrometry
Infrared spectroscopy
isolation
mass spectroscopy

Keywords

  • Acetyl chloride, trichloro-
  • mass spectrometry
  • matrix-IR spectroscopy
  • pyrolysis.

ASJC Scopus subject areas

  • Analytical Chemistry
  • Physical and Theoretical Chemistry

Cite this

Vacuum pyrolysis of CCl3COCl : Matrix-IR and mass spectrometric studies of the intermediates. / Khabashesku, V. N.; Maltsev, A. K.; Nefedov, O. M.; Bertóti, I.; Székely, T.

In: Journal of Analytical and Applied Pyrolysis, Vol. 13, No. 1-2, 1988, p. 135-140.

Research output: Contribution to journalArticle

Khabashesku, V. N. ; Maltsev, A. K. ; Nefedov, O. M. ; Bertóti, I. ; Székely, T. / Vacuum pyrolysis of CCl3COCl : Matrix-IR and mass spectrometric studies of the intermediates. In: Journal of Analytical and Applied Pyrolysis. 1988 ; Vol. 13, No. 1-2. pp. 135-140.
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AU - Bertóti, I.

AU - Székely, T.

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