Crossed molecular beam ion-imaging study of the Cl + SiH4→ HCl + SiH3 reaction: product vibrational state-to-state correlation

Abstract

The dynamics of the Cl + SiH(4) --> HCl + SiH(3) reaction has been studied using the crossed molecular beam technique with slice imaging. The ion images of the silyl radical (SiH(3)) product from the Cl + SiH(4) reaction were recorded at different collision energies, using the (2 + 1) resonance enhanced multi-photon ionization (REMPI) technique. The product velocity and angular distributions of this reaction were determined from the recorded images. The vibrational state-to-state correlation of the relative population between the two reaction products, SiH(3) and HCl, was also determined. Finally, the Cl + SiH(4) results are compared with that of the F + SiH(4) reaction.

Deciphering Dynamics of the Cl + SiH4 → H + SiH3Cl Reaction on a Machine Learning Made Globally Accurate Full-Dimensional Potential Energy Surface

“…This PES (PES-2021) was then utilized to study the kinetics and dynamics of the R1 channel. The theoretical results on the PES-2021 were in reasonably good agreement with experimental results . However, this PES-2021 did not include the R2 channel and cannot simulate its kinetics and dynamics, the competition between different channels, and the branching ratio.…”

“…Clearly, there were large uncertainties in k 1 . Only one experimental dynamical investigation was carried out by the crossed-beam slicing imaging apparatus to measure the product angular distributions, the vibrational state-resolved correlations between HCl and SiH 3 …”

Imaging the O(1D) + CD4 → OD + CD3 Reaction Dynamics: The Threshold of Abstraction Pathway

“…Reaction dynamics of polyatomic reactions have received much attention in recent years, for instance, the F + CH 4 system − by Liu and co-workers, and the F (Cl) + SiH 4 reactions , and H + CD 4 → HD + CD 3 by Yang and co-workers . Many interesting dynamical behaviors have been observed.…”

Global potential energy surface and product pair-correlated distributions for the F(2P) + SiH4 reaction – comparison with experiments

“…In the experimental analysis 10 of the title reaction, it was concluded that the forward tendency was associated with a mechanism likely produced via abstraction at large impact parameters, but nothing is said about the sideways-backward contribution. However, this same experimental group, analysing the cousin Cl( 2 P) + SiH 4 reaction one year later, 59 reported that the sideways-backward behaviour was associated with a complex formation mechanism or lower impact parameters. In order to understand these mechanisms in the title reaction, Fig.…”