The isomerization of propyne into propadiene over a silica catalyst
article
Propyne was isomerized to propadiene over a silica catalyst labeled with tritium. We could demonstrate that for every isomerizing molecule a hydrogen atom of the catalyst is exchanged; the propadiene which was formed contained the calculated amount of tritium. For the reverse reaction, however, it was found that the methyl group of propyne contained only about 40% of the expected amount of tritium, probably owing to an isotope effect. The results are explained in terms of a tentative reaction mechanism. The empirical activation energy for the isomerization reaction is 13 kcal/mole. © 1971.
TNO Identifier
227271
ISSN
00219517
Source
Journal of Catalysis, 22(2), pp. 213-218.
Pages
213-218
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