Mass and photoelectron spectroscopy of C3H2.. DELTA. Hf of singlet carbenes deviate from additivity by their singlet-triplet gaps

H Clauberg, DW Minsek, P Chen

文献索引：Clauberg, Horst; Minsek, David W.; Chen, Peter Journal of the American Chemical Society, 1992 , vol. 114, # 1 p. 99 - 107

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被引用次数: 123

摘要

Abstract: Vacuum-UV (10.49 eV) photoionization mass and photoelectron spectroscopy of the three isomers of C3H2, cyclopropenylidene (l), propadienylidene (2), and propargylene (3), are used to test a valence bond promotion energy model for carbene thermochemistry and radical bond dissociation energies. The predicted deviation of AHf [carbene] from bond additivity estimates by the carbene singlet-triplet gap is shown to be valid to within the ...