D/H kinetic isotope effect in the reaction CH4 + Cl
| dc.contributor.author | Saueressig, G. | |
| dc.contributor.author | Bergamaschi, P. | |
| dc.contributor.author | Crowley, J. | |
| dc.contributor.author | Fischer, H. | |
| dc.contributor.author | Harris, G.W. | |
| dc.date.accessioned | 2010-06-10T18:24:51Z | |
| dc.date.available | 2010-06-10T18:24:51Z | |
| dc.date.issued | 1996 | |
| dc.description.abstract | The D/H kinetic isotope effect (KIECl D) in the reaction of CH4 with Cl has been investigated using a tunable diode laser absorption spectrometer (TDLAS) to measure 12CH3D/12CH4 ratios. A KIECl D of 1.508±0.041 was obtained at room temperature (296 K). Experiments employing Fourier transform infrared measurements of 12CH3D/12CH4 ratios confirmed this result. An investigation of the temperature dependence showed an increase of KIECl D (1.592±0.057 at 223 K) with decreasing temperature. This very large D/H fractionation effect affects the overall isotope fractionation in the middle and upper stratosphere, where Cl contributes substantially to the total removal of CH4. | en |
| dc.identifier.citation | Geophys. Res. Letts., 23, 3619-3622 | en |
| dc.identifier.uri | http://hdl.handle.net/10315/4173 | |
| dc.language.iso | en | en |
| dc.publisher | AGU | en |
| dc.rights.journal | http://www.agu.org/journals/jd/ | en |
| dc.title | D/H kinetic isotope effect in the reaction CH4 + Cl | en |
| dc.type | Article | en |