Jump to main content
Jump to site search


Photodissociation of CH2BrI using cavity ring-down spectroscopy: in search of a BrI elimination channel

Author affiliations

Abstract

Photodissociation of CH2BrI was investigated in search of unimolecular elimination of BrI via a primary channel using cavity ring-down absorption spectroscopy (CRDS) at 248 nm. The BrI spectra were acquired involving the first three ground vibrational levels corresponding to A3Π1 ← X1Σ+ transition. With the aid of spectral simulation, the BrI rotational lines were assigned. The nascent vibrational populations for v′′ = 0, 1, and 2 levels are obtained with a population ratio of 1 : (0.58 ± 0.10) : (0.34 ± 0.05), corresponding to a Boltzmann-like vibrational temperature of 713 ± 49 K. The quantum yield of the ground state BrI elimination reaction is determined to be 0.044 ± 0.014. The CCSD(T)//B3LYP/MIDI! method was employed to explore the potential energy surface for the unimolecular elimination of BrI from CH2BrI.

Graphical abstract: Photodissociation of CH2BrI using cavity ring-down spectroscopy: in search of a BrI elimination channel

Back to tab navigation

Supplementary files

Publication details

The article was received on 29 Jun 2018, accepted on 06 Aug 2018 and first published on 07 Aug 2018


Article type: Paper
DOI: 10.1039/C8CP04130J
Citation: Phys. Chem. Chem. Phys., 2019, Advance Article
  •   Request permissions

    Photodissociation of CH2BrI using cavity ring-down spectroscopy: in search of a BrI elimination channel

    B. Muthiah, D. Paredes-Roibás, T. Kasai and K. Lin, Phys. Chem. Chem. Phys., 2019, Advance Article , DOI: 10.1039/C8CP04130J

Search articles by author

Spotlight

Advertisements