ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
The photodissociation and photodesorption dynamics of iodobenzene adsorbed at 150 K on LiF substrates has been investigated at 222 nm using the time-of-flight/resonance-enhanced multiphoton ionization/mass spectrometry technique. The Maxwell–Boltzmann (MB) translational temperatures (TB) calculated for the phenyl radical, atomic iodine in the I (2P3/2) and (2P1/2) states, and biphenyl were 1200, 1500, and 1050 K, respectively. The desorbed parent molecule (detected by electron ionization) was found to be translationally colder, with TB≈900 K. Analysis of translational energy distributions indicate that the adsorption–dissociation mechanism of iodobenzene differs significantly from that of the methyl halides.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.458152
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