Quantitative mid-infrared spectra of allene and propyne from room to high temperatures

Et-touhami Es-sebbar, A. Jolly, Y. Benilan, Aamir Farooq

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Allene (a-C3H4; CH2CCH2) and propyne (p-C3H4; CH3C2H) have attracted much interest because of their relevance to the photochemistry in astrophysical environments as well as in combustion processes. Both allene and propyne have strong absorption in the infrared region. In the present work, infrared spectra of a-C3H4 and p-C3H4 are measured in the gas phase at temperatures ranging from 296 to 510 K. The spectra are measured over the 580-3400 cm-1 spectral region at resolutions of 0.08 and 0.25 cm-1 using Fourier Transform Infrared spectroscopy. Absolute integrated intensities of the main infrared bands are determined at room temperature and compared with values derived from literature for both molecules. Integrated band intensities are also determined as a function of temperature in various spectral regions.
Original languageEnglish (US)
Pages (from-to)10-16
Number of pages7
JournalJournal of Molecular Spectroscopy
Volume305
DOIs
StatePublished - Nov 2014

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

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