Elsevier

Chemical Physics Letters

Volume 166, Issue 4, 12 March 1990, Pages 397-403
Chemical Physics Letters

Laser photolysis of trimethylgallium at 193 nm: Quantum yields for methyl radical and ethane production

https://doi.org/10.1016/0009-2614(90)85050-MGet rights and content

Abstract

Quantum yields for the products from trimethylgallium (TMG) photolysis were determined via a new method involving isotopic analysis using TMG-acetone-d6 mixtures. The following model-dependent quantum yields were obtained: monomethylgallium (MMG), 0.5; dimethylgallium (DMG), 0.2; gallium, 0.3; molecularly eliminated ethane, 0.3; free methyl, 1.5. Two new electronic absorptions at 216 and 220 nm were found and are tentatively ascribed to DMG*.

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