Surface photochemistry: exergonic and endergonic photocatalysed reaction in the CdS-mediated cis–trans-isomerization of cis-4-substituted stilbenes
- 1 January 1985
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 21,p. 1534-1535
- https://doi.org/10.1039/c39850001534
Abstract
The cis-stibenes (1a–g) undergo photocatalysed cis-trans-isomerization on CdS; the Hammett plot for the reaction has a sharp break at σ+=–0.19 [E°½= 1.47 V vs. standard calomel electrode] and is rationalized in terms of both exergonic and endergonic photocatalysed processes on the semiconductor with different rate-determining steps.Keywords
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