Primary reaction channels and kinetics of the thermal decomposition of phenylsilane
dc.contributor.author | O'Neal, H. | |
dc.contributor.author | Ring, M. | |
dc.contributor.author | Kim, D. | |
dc.contributor.author | King, K. | |
dc.date.issued | 1995 | |
dc.description.abstract | The thermally induced decomposition of phenylsilane has been investigated by three different experimental methods: a static method, a comparative rate-single pulse shock tube (CR-SPST) method, and a very low-pressure pyrolysis (VLPP) method. Decomposition is mainly heterogeneous under static conditions but appears homogeneous in the other two systems. Homogeneous dissociations occur by two channels with yields, PhSiH<inf>3</inf> →<sup>1</sup> H<inf>2</inf> + PhSiH, φ<inf>1</inf> ∼ 0.84 ± 0.04; PhSiH<inf>3</inf> →<sup>2</sup> PhH + SiH<inf>2</inf>, φ<inf>2</inf> ∼ 0.16 ± 0.04. Coupling of CR-SPST and homogeneous static reactor data spanning temperatures from 693 to 1236 K for the benzene formation channel and adjusting for falloff by RRKM methods gives high-pressure Arrhenius parameters of A<inf>1</inf> = 10<sup>14.0±0.4</sup>, E<inf>1</inf>= 59.3 ± 2.1 and A<inf>2</inf> = 10<sup>13.9±0.2</sup>, E<inf>2</inf> = 62.0 ± 0.9 (A in s<sup>-1</sup> and E in kcal/mol) for the two primary dissociation channels. These parameters yield RRKM calculated rate constants under VLPP conditions which agree within the errors with experimental rate constants. © 1995 American Chemical Society. | |
dc.identifier.citation | The Journal of physical chemistry, 1995; 99(23):9397-9402 | |
dc.identifier.doi | 10.1021/j100023a015 | |
dc.identifier.issn | 0022-3654 | |
dc.identifier.issn | 1541-5740 | |
dc.identifier.orcid | King, K. [0000-0003-2766-2330] | |
dc.identifier.uri | http://hdl.handle.net/2440/875 | |
dc.language.iso | en | |
dc.publisher | American Chemical Society | |
dc.source.uri | https://doi.org/10.1021/j100023a015 | |
dc.title | Primary reaction channels and kinetics of the thermal decomposition of phenylsilane | |
dc.type | Journal article | |
pubs.publication-status | Published |