Photochemistry of Hydrocarbon Radicals

Authors

  • Ingo Fischer

DOI:

https://doi.org/10.2533/chimia.2000.96

Keywords:

Allyl, Photodissociation dynamics, Propargyl, Radicals, Time-resolved spectroscopyy

Abstract

Hydrocarbon radicals are ideal model systems to understand the dynamics of chemical reactions. In addition they are of considerable importance in high-energy environments, such as combustion engines or hydrocarbon crackers. In order to understand their reactions, we deposit a known amount of energy in the radicals by laser excitation and observe the subsequent dynamics by two experimental methods, a) picosecond time-resolved photoelectron spectroscopy and b) nanosecond photoionization of hydrogen atoms, the major reaction product in many radical reactions.Recent results for three radicals are summarized and discussed: allyl (C3H5), propargyl (C3H3), and ethyl (C2H5). We report the major reaction products, the pathways leading to these products, their rates of formation, and translational energy releases.

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Published

2000-03-29

How to Cite

[1]
I. Fischer, Chimia 2000, 54, 96, DOI: 10.2533/chimia.2000.96.

Issue

Section

Scientific Articles