Unimolecular Rate Constant and Threshold Energy for the HF Elimination from Chemically Activated CF<sub>3</sub>CHFCF<sub>3</sub>
作者:Juliana R. Duncan、Michael S. Roach、Brooke Sibila Stiles、Bert E. Holmes
DOI:10.1021/jp100195e
日期:2010.7.8
of CF3CHF and CF3 radicals at room temperature generated chemically activated CF3CHFCF3 molecules with 95 ± 3 kcal/mol of internal energy that decompose by loss of HF, initially attached to adjacent carbons, with an experimental unimolecular rate constant of (4.5 ± 1.1) × 102 s−1. Density functional theory was used to model the unimolecular rate constant for HF elimination, kHF, to determine a threshold
CF 3 CHF和CF 3自由基在室温下的结合产生了化学活化的CF 3 CHFCF 3分子,其内部能量为95±3 kcal / mol,由于HF的损失而分解,最初附着在相邻的碳上,实验的单分子速率常数为(4.5±1.1)×10 2 s -1。使用密度泛函理论对消除HF的单分子速率常数k HF进行建模,以确定75±2 kcal / mol的阈值能量。