The hydrogen abstraction reaction of O (3P) with Si2H6 has been studied theoretically.Two transition states of 3A' and 3A' symmetries have been located for this abstraction reaction.Geometries have been optimi...The hydrogen abstraction reaction of O (3P) with Si2H6 has been studied theoretically.Two transition states of 3A' and 3A' symmetries have been located for this abstraction reaction.Geometries have been optimized at the UMP2 level with 6-311G+(d) basis set. G3MP2 has been used for the final single-point energy calculation. The rate constants have been calculated over a wide temperature range of 200~3000 K using canonical variational transition-state theory (CVT)with small curvature tunneling effect (SCT). The calculated CVT/SCT rate constants match well with the experimental value.展开更多
基金This work was supported by the National Natural Science Foundation of China(No.51776045,No.51676176 and No.51976207)the Project was also sponsored by the Scientific Research Foundation of Guangxi University(No.XGZ170074)the Foundation of State Key Laboratory of Coal Combustion(No.FSKLCCA1908).The numerical calculations in this work were performed on the supercomputing system in the Supercomputing Center of the University of Science and Technology of China.
基金This work was supported by the National Natural Science Foundation of China (No.21173002) and the Anhui Provincial Natural Science Foundation, China (No.1308085MB20).
基金The authors thank Professor Donald G. Truhlar for providing the POLYRATE 7.8 programThis work is supported by the Research Fund for the Doctoral Program of Higher Education of China.
文摘The hydrogen abstraction reaction of O (3P) with Si2H6 has been studied theoretically.Two transition states of 3A' and 3A' symmetries have been located for this abstraction reaction.Geometries have been optimized at the UMP2 level with 6-311G+(d) basis set. G3MP2 has been used for the final single-point energy calculation. The rate constants have been calculated over a wide temperature range of 200~3000 K using canonical variational transition-state theory (CVT)with small curvature tunneling effect (SCT). The calculated CVT/SCT rate constants match well with the experimental value.