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1968•Journal of the Chemical Society A Inorganic Physical TheoreticalRequires access

Photochemical measurements at 1849 Å: ethylene as an actinometer and a method for estimating extinction coefficients

Peter Borrell, P. Cashmore, Alan E. Platt

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Abstract

The quantum yield of formation of hydrogen from the photolysis of ethylene at 1849 Å has been measured by use of nitrous oxide as an actinometer and found to be 0·62 (± 0·01). This value, of importance when using ethylene as a chemical actinometer, is substantially lower than that reported previously.To ensure that the majority of the light was absorbed by the actinometer, a method was devised which can be used to estimate extinction coefficients photochemically.

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The quantum yield of formation of hydrogen from the photolysis of ethylene at 1849 Å has been measured by use of nitrous oxide as an actinometer and found to be 0·62 (± 0·01). This value, of importance when using ethylene as a chemical actinometer, is substantially lower than that reported previously.To ensure that the majority of the light was absorbed by the actinometer, a method was devised which can be used to estimate extinction coefficients photochemically.

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Available abstract

The quantum yield of formation of hydrogen from the photolysis of ethylene at 1849 Å has been measured by use of nitrous oxide as an actinometer and found to be 0·62 (± 0·01). This value, of importance when using ethylene as a chemical actinometer, is substantially lower than that reported previously.To ensure that the majority of the light was absorbed by the actinometer, a method was devised which can be used to estimate extinction coefficients photochemically.

Key concepts: Actinometer, Ethylene, Chemistry, Photodissociation, Photochemistry, Quantum yield, Ethylene oxide, Extinction (optical mineralogy)

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