Primary and secondary processes in the photodissociation of CHBr3 Academic Article

abstract

• The photodissociation of CHBr3at 193 nm has been investigated using photofragment translational spectroscopy with VUV ionization detection. The only primary process observed was the loss of bromine atom. The translational energy distribution for this channel suggests a direct dissociation from an excited electronic state, and the anisotropy parameter, =0.0, is consistent with a transition dipole moment aligned perpendicular to the C3vaxis. The majority of nascent CHBr2fragments undergo secondary dissociation via two competing channels. The elimination of HBr and C-Br bond cleavage in CHBr2occur with comparable yields. We also provide ab initio calculations on the relevant photochemical species and RRKM estimates of the product branching ratios that are consistent with the experimental observations. 2000 American Chemical Society.

authors

• North, Simon

published proceedings

• JOURNAL OF PHYSICAL CHEMISTRY A

author list (cited authors)

• McGivern, W. S., Sorkhabi, O., Suits, A. G., Derecskei-Kovacs, A., & North, S. W.

citation count

• 59

complete list of authors

• McGivern, WS||Sorkhabi, O||Suits, AG||Derecskei-Kovacs, A||North, SW

publication date

• November 2000

publisher

• American Chemical Society (ACS)  Publisher

published in

• The Journal of Physical Chemistry A: Isolated Molecules, Clusters, Radicals, and Ions; Environmental Chemistry, Geochemistry, and Astrochemistry; Theory  Journal

keywords

• 34 Chemical Sciences
• 3406 Physical Chemistry
• 51 Physical Sciences
• 5102 Atomic, Molecular And Optical Physics

Digital Object Identifier (DOI)

• 10.1021/jp0005017

start page

• 10085

end page

• 10091

volume

• 104

issue

• 45

URL

• http%3A%2F%2Fdx.doi.org%2F10.1021%2Fjp0005017