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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 23, Number 2
BKCSDE 23(2)
February 20, 2002 

N(2D) Product Velocity Mapped Imaging in the VUV Photolysis of Nitrous Oxide at 118.2 nm
Bogdan R. Cosofret, H. Mark Lambert, Paul L. Houston
VUV photolysis, Nitrous oxide, NO vibrational energy distribution, 118.2 nm.
Resonance-enhanced multiphoton ionization with time-of-flight product imaging of the N(2D) atoms has been used to study the N2O photodissociation at 118.2 nm and the two-photon dissociation at 268.9 nm. These imaging experiments allowed the determination of the total kinetic energy distributions of the NO(X 2Π) and N(2D5/2) products. The NO(X 2Π) fragments resulting from the photodissociation processes are produced in highly vibrationally excited states. The two-photon photodissociation process yields a broad NO(X 2Π) vibrational energy distribution, while the 118.2 nm dissociation appears to produce a vibrational distribution sharply peaked at NO(X 2Π, ν=14).
179 - 183
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