TY  - JOUR
U1  - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed)
A1  - Kelso, Hailey
A1  - Köhler, Sven P. K.
A1  - Henderson, David A.
A1  - McKendrick, Kenneth G.
T1  - Dynamics of the gas–liquid interfacial reaction of O(³P) atoms with hydrocarbons
JF  - The Journal of Chemical Physics
N2  - We describe an experimental approach to the determination of the nascent internal state distribution of gas-phase products of a gas–liquid interfacial reaction. The system chosen for study is O(³P) atoms with the surface of liquid deuterated squalane, a partially branched long-chain saturated hydrocarbon, C₃₀D₆₂. The nascent OD products are detected by laser-induced fluorescence. Both OD (v′=0) and (v′=1) were observed in significant yield. The rotational distributions in both vibrational levels are essentially the same, and are characteristic of a Boltzmann distribution at a temperature close to that of the liquid surface. This contrasts with the distributions in the corresponding homogeneous gas-phase reactions. We propose a preliminary interpretation in terms of a dominant trapping-desorption mechanism, in which the OD molecules are retained at the surface sufficiently long to cause rotational equilibration but not complete vibrational relaxation. The significant yield of vibrationally excited OD also suggests that the surface is not composed entirely of –CD₃ endgroups, but that secondary and/or tertiary units along the backbone are exposed.
KW  - Gas-Flüssigkeit-System
KW  - Sauerstoffatom
KW  - Kohlenwasserstoffe
KW  - Squalan
Y1  - 2003
UN  - https://nbn-resolving.org/urn:nbn:de:bsz:960-opus4-22949
SN  - 0021-9606
SS  - 0021-9606
U6  - https://doi.org/10.25968/opus-2294
DO  - https://doi.org/10.25968/opus-2294
VL  - 119
IS  - 19
SP  - 10
S1  - 10
PB  - AIP Publishing
ER  -