Jiang Li-Xue, Liu Qing-Yu, Li Xiao-Na, He Sheng-Gui
Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China.
University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
J Am Soc Mass Spectrom. 2018 Jan;29(1):78-84. doi: 10.1007/s13361-017-1828-3. Epub 2017 Oct 27.
A high-temperature linear ion trap reactor with hexapole design was homemade to study ion-molecule reactions at variable temperatures. The highest temperature for the trapped ions is up to 773 K, which is much higher than those in available reports. The reaction between VO cluster anions and CO at different temperatures was investigated to evaluate the performance of this reactor. The apparent activation energy was determined to be 0.10 ± 0.02 eV, which is consistent with the barrier of 0.12 eV calculated by density functional theory. This indicates that the current experimental apparatus is prospective to study ion-molecule reactions at variable temperatures, and more kinetic details can be obtained to have a better understanding of chemical reactions that have overall barriers. Graphical Abstract.
自制了一种具有六极设计的高温线性离子阱反应器，用于研究可变温度下的离子 - 分子反应。捕获离子的最高温度可达773 K，这比现有报道中的温度要高得多。研究了VO团簇阴离子与CO在不同温度下的反应，以评估该反应器的性能。确定表观活化能为0.10±0.02 eV，这与密度泛函理论计算的0.12 eV势垒一致。这表明当前的实验装置有望用于研究可变温度下的离子 - 分子反应，并且可以获得更多动力学细节，以便更好地理解具有整体势垒的化学反应。图形摘要。
