Thermochemistry of organic and heteroorganic species. Part VIII. Ketene and structurally related species
作者:A.V. Golovin、D.A. Ponomarev、V.V. Takhistov
DOI:10.1016/s0022-2860(99)00452-4
日期:2000.6
applied for the estimation of the enthalpies of formation of ketene and related molecules. The following Δ H f 0 values were found CH 2 C O: −(22–25), CH 2 S CH 2 (67), CH 2 S S (60), S S S (51), HC COH (10 kcal mol −1 ). The low value of Δ H f 0 ( ketene )≈−23 kcal mol −1 as compared with the currently used value −11.4 kcal mol −1 was supported by the literature data, which have been revised in the present
摘要 采用光电离质谱法得到 CH 2 CO≤-20.5 和 -24.0 kcal mol -1(分别来自 3-苯基环丁酮和双烯酮)、CH 3 CO + 离子 147.3 和 152.3 kcal mol -1(分别来自CH 3 COOCH CH 2 和CH 3 CONH 2 分子)和PhCH 2 CO + 175.5 kcal mol -1(来自PhCH 2 COOMe分子)。焓位移程序用于估计乙烯酮和相关分子的形成焓。发现以下 Δ H f 0 值 CH 2 CO:-(22–25)、CH 2 S CH 2 (67)、CH 2 SS (60)、SSS (51)、HC COH (10 kcal mol -1 ) . 与当前使用的值-11.4 kcal mol -1 相比,Δ H f 0 (烯酮)≈-23 kcal mol -1 的低值得到了文献数据的支持,这些数据已在本工作中进行了修订。使用乙烯酮的新值'