Photodissociation of formaldehyde in a molecular beam
- 1 April 1982
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 76 (7) , 3630-3636
- https://doi.org/10.1063/1.443400
Abstract
Formaldehyde photopredissociation was studied under collisionless conditions by the technique of crossed laser and molecular beams. Detection of the molecular product CO after excitation of H2CO near the S1 origin gives strong support to the sequential coupling model for fast nonradiative decay of S1 states through broadened S0 levels to the continuum. For H2CO excitation at 283.9 nm, formation of the radical product HCO dominates dissociation to molecular products by at least one order of magnitude.Keywords
This publication has 35 references indexed in Scilit:
- Single rotational level fluorescence quantum yields, radiative lifetimes, and nonradiative decay rates of S1 D2CO and H2CO(Ã 1A2, 41): Rotational dependenceThe Journal of Chemical Physics, 1981
- Formaldehyde: Electronic structure calculations for the S and T1 statesThe Journal of Chemical Physics, 1981
- Photodissociation of the formaldehyde molecule: does it or doesn't it?Chemical Reviews, 1980
- The photodissociation of formaldehyde: Potential energy surface featuresThe Journal of Chemical Physics, 1979
- Collisionless nonradiative decay rates of single rotational levels of S1 formaldehydeThe Journal of Chemical Physics, 1979
- Laser-induced photodecomposition of formaldehyde (~A1A2) from its single vibronic levels. Determination of the quantum yield of H-atom by HNO (~A1A") chemiluminescenceThe Journal of Physical Chemistry, 1979
- Wavelength dependence of the quantum efficiencies of the primary processes in formaldehyde photolysis at 25°CInternational Journal of Chemical Kinetics, 1978
- Isotope separation of oxygen-17, oxygen-18, carbon-13, and deuterium by ion laser induced formaldehyde photopredissociationThe Journal of Chemical Physics, 1977
- Triatomic Photofragment Spectra. I. Energy Partitioning in NO2 PhotodissociationThe Journal of Chemical Physics, 1972
- Kinetics and Mechanism of the Gas Phase Reaction between Iodine and Formaldehyde and the Carbon-Hydrogen Bond Strength in Formaldehyde1aJournal of the American Chemical Society, 1966