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

The dynamics of the Cl + SiH4 → HCl + SiH3 reaction has been studied using the crossed molecular beam technique with slice imaging. The ion images of the silyl radical (SiH3) product from the Cl + SiH4 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, SiH3 and HCl, was also determined. Finally, the Cl + SiH4 results are compared with that of the F + SiH4 reaction.