Ionized ethylidene ketene and its homologue methylene ketene

…, JL Holmes, FP Lossing

文献索引：Terlouw, Johan K.; Holmes, John L.; Lossing, F. P. Canadian Journal of Chemistry, 1983 , vol. 61, p. 1722 - 1724

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被引用次数: 7

摘要

The gas phase pyrolyses of crotonic and acrylic-trifluoroacetic anhydrides were shown to yield ethylidene ketene [CH3CH= C= C= O] and methylene ketene [CH2= C= C= O], respectively. The former was identified via the collisional activation mass spectrum of its molecular ion. The ionization energies of the two ketenes, 8.68 and 9.12±0.05 eV respectively, measured using energy selected electrons, lead to 215 and 233 kcal mol-1 ...