A measurement of the strength of the ν2 band of CH3
✍ Scribed by J. Wormhoudt; K.E. McCurdy
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 374 KB
- Volume
- 156
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
✦ Synopsis
The infrared band strength of the Ye band of the methyl radical has been measured using tunable diode laser absorption by the Q8(8) line at 608.3 cm-'. Experiments were performed in a discharge-flow apparatus, using the homogeneous recombination decay to quantify CH, concentrations.
The measured line strength at 300 K is (3.2+ 1.0) x lo-l9 cm-' (molecule/cmZ)-', resulting in a band strength of (2.5 +O.S) x lo&" cm-' (molecule/cm')-'.
This agrees with an earlier value to within the combined en-or limits.
📜 SIMILAR VOLUMES
The overtone band \(2 \nu_{8}^{0}\) of \(\mathrm{CH}_{3} \mathrm{CN}\) around \(720 \mathrm{~cm}^{-1}\) has been measured on a Bruker Fourier transform spectrometer at a resolution of \(0.003 \mathrm{~cm}^{-1}\). Only the parallel band was observed, but due to the \(l(2,2)\) resonance, \(\Delta K=-2