Cycloalkane and Cycloalkene C−H Bond Dissociation Energies
作者:Zhixin Tian、Alireza Fattahi、Lev Lis、Steven R. Kass
DOI:10.1021/ja065348u
日期:2006.12.1
Both C-Hbond dissociation energies for cyclobutene were measured in the gas phase (BDE = 91.2 +/- 2.3 (allyl) and 112.5 +/- 2.5 (vinyl) kcal mol-1) via a thermodynamic cycle by carrying out proton affinity and electron-binding energy measurements on 1- and 3-cyclobutenyl anions. The results were compared to those for an acyclic model compound, cis-2-butene, and provide the needed information to experimentally