Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases p. 2105 - 2114 (1981)
Update date:2022-08-17
Topics:
Kita, Hideaki
Nakajima, Hiroshi
The electroreduction of but-2-yne on platinized Pt electrode in 1 mol dm-3 H2SO4 or D2SO4 solution has been studied.Selectivities, reaction rates and deuterium distributions in products have been observed by gas chromatography and mass spectrometry.The main products are butane, cis- and trans but-2-enes with a current efficiency of ca. 100percent in total.Their selectivities depend sharply on potential in good agreement with their behaviour in the Tafel plot.The distributions of the deutero-species in cis-but-2-ene and butane show that but-2-yne is reduced to cis-but-2-ene by the simple addition of hydrogen atoms, whereas the route to butane is different.In the latter route, there exist two paths which consist of an extremely fast and a moderate exchange reaction of the isotope.The distributions are simulated satisfactorily by this dual-path model.
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