TY - JOUR
T1 - The vibrational state distributions in both products of the reaction: O(3P) + NO2 → O2 + NO
AU - Smith, Ian
AU - Tuckett, Richard P.
AU - Whitham, Christopher J.
PY - 1992/12/25
Y1 - 1992/12/25
N2 - A laser pulse-and-probe method has been used to determine the nascent vibrational populations in NO(v=0–4) and O2(v=6–11) formed in the thermal reaction: O(3P) + NO2 → O2(v) + NO(v). A frequency-tripled Nd: YAG laser is used to photolyse NO2, diluted tenfold in Ar, and laser-induced fluorescence spectroscopy in the NO A 2Σ+-X 2Π and O2 B 3Σ−u -X 3Σ−g electronic band system is used both to follow the kinetics of individual vibrational states and to determine the nascent vibrational distributions. The majority of the NO product is formed in v = 0 and the average vibrational yield is ≈ 4.6%. The O2 populations fall monotonically from v = 6 to 11 in a distribution close to what is expected on prior grounds. Based on a surprisal analysis, the average vibrational energy yield in O2 is ≈ 26%. The nature of the reaction dynamics is discussed.
AB - A laser pulse-and-probe method has been used to determine the nascent vibrational populations in NO(v=0–4) and O2(v=6–11) formed in the thermal reaction: O(3P) + NO2 → O2(v) + NO(v). A frequency-tripled Nd: YAG laser is used to photolyse NO2, diluted tenfold in Ar, and laser-induced fluorescence spectroscopy in the NO A 2Σ+-X 2Π and O2 B 3Σ−u -X 3Σ−g electronic band system is used both to follow the kinetics of individual vibrational states and to determine the nascent vibrational distributions. The majority of the NO product is formed in v = 0 and the average vibrational yield is ≈ 4.6%. The O2 populations fall monotonically from v = 6 to 11 in a distribution close to what is expected on prior grounds. Based on a surprisal analysis, the average vibrational energy yield in O2 is ≈ 26%. The nature of the reaction dynamics is discussed.
U2 - 10.1016/0009-2614(92)80099-W
DO - 10.1016/0009-2614(92)80099-W
M3 - Article
SN - 0009-2614
VL - 200
SP - 615
EP - 623
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 6
ER -