Reactions and quenching of vibrationally excited hydroxyl radicals
نویسندگان
چکیده
منابع مشابه
Quenching of highly vibrationally excited pyrimidine by collisions with CO2.
Relaxation of highly vibrationally excited pyrimidine (C(4)N(2)H(4)) by collisions with carbon dioxide has been investigated using diode laser transient absorption spectroscopy. Vibrationally hot pyrimidine (E(')=40 635 cm(-1)) was prepared by 248-nm excimer laser excitation, followed by rapid radiationless relaxation to the ground electronic state. The nascent rotational population distributio...
متن کاملThe dissociation of vibrationally excited CH3OSO radicals and their photolytic precursor, methoxysulfinyl chloride.
The dissociation dynamics of methoxysulfinyl radicals generated from the photodissociation of CH(3)OS(O)Cl at 248 nm is investigated using both a crossed laser-molecular beam scattering apparatus and a velocity map imaging apparatus. There is evidence of only a single photodissociation channel of the precursor: S-Cl fission to produce Cl atoms and CH(3)OSO radicals. Some of the vibrationally ex...
متن کاملDirect measurement of the radiative lifetime of vibrationally excited OH radicals.
Neutral molecules, isolated in the gas phase, can be prepared in a long-lived excited state and stored in a trap. The long observation time afforded by the trap can then be exploited to measure the radiative lifetime of this state by monitoring the temporal decay of the population in the trap. This method is demonstrated here and used to benchmark the Einstein A coefficients in the Meinel syste...
متن کاملOn the theory of the reaction rate of vibrationally excited CO molecules with OH radicals.
The dependence of the rate of the reaction CO+OH-->H+CO2 on the CO-vibrational excitation is treated here theoretically. Both the Rice-Ramsperger-Kassel-Marcus (RRKM) rate constant kRRKM and a nonstatistical modification knon [W.-C. Chen and R. A. Marcus, J. Chem. Phys. 123, 094307 (2005).] are used in the analysis. The experimentally measured rate constant shows an apparent (large error bars) ...
متن کاملChemical dynamics of vibrationally excited molecules: Controlling reactions in gases and on surfaces.
Experimental studies of the chemical reaction dynamics of vibrationally excited molecules reveal the ability of different vibrations to control the course of a reaction. This Perspective describes those studies for the prototypical reaction of vibrationally excited methane and its isotopologues in gases and on surfaces and looks to the prospects of similar studies in liquids. The influences of ...
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ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 1976
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.431917