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PHOTOINDUCED METATHESIS REACTION OF C3H6 ON SUPPORTED MoO3 CATALYST

DOI: 10.1039/f19827802121

Source and publish data:

Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases p. 2121 - 2128 (1982)

Update date:2022-08-24

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Authors:

Anpo, MasakazuAnpo, Masakazu

Tanahashi, IchiroTanahashi, Ichiro

Kubokawa, YutakaKubokawa, Yutaka

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Article abstract of DOI:10.1039/f19827802121

Ultraviolet irradiation of MoO3 supported on porous Vycor glass (PVG) in the presence of C3H4 has been found to induce the formation of approximately equimolar amounts of C2H4 and 2-C4H8 as well as a small amount of CH3CHO, suggesting that the metathesis reaction of C3H4 occurs.The dependence of the yields upon the excitation wavelenght is in good agreement with the excitation band of the phosphorescence of MoO3/PVG, wich arises from the charge-transfer transition .The quenching of the posphorescence of MoO3/PVG and the decrease in the yield of C3H4 metathesis on adding O2 and CO suggest that the photoinduced metathesis reaction is closely associated with the charge-transfer excited triplet state of MoO3/PVG.From these results, together with those of e.s.r. experiments reported previously, the mechanism of the photoinduced C3H4 metathesis, especially the primary process of metal-carbene formation, is discussed.

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