Abstract
Theoretical investigations are carried out on the multi-channel reaction CH3SiH2CH3+OH by means of direct dynamics methods. The minimum energy path (MEP) is obtained at the BH&H-LYP/6-311G(d, p) level, and energetic information is further refined at the G3(MP2) (single-point) level. The rate constants for the title reaction are calculated by canonical variational transition state theory (CVT) with the small-curvature tunneling (SCT) correction in a wide temperature range 200-3000 K. H-abstraction is favored for the SiH2 group, while the abstraction from the CH3 group is a minor channel. The theoretical overall rate constants are in good agreement with the available experimental data and are found to be k=2.57×10-9exp(-1156.59/T)cm3 molecule -1s-1 over the temperature region 200-3000 K.
Original language | English |
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Pages (from-to) | 25-29 |
Number of pages | 5 |
Journal | Journal of Molecular Structure: THEOCHEM |
Volume | 728 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - 2 Sept 2005 |
Externally published | Yes |
Keywords
- Canonical variational transition state theory
- Direct dynamics methods
- Rate constants