PHOTODISSOCIATION DYNAMICS OF CBrClF2 AT 157 NM

Atsushi Yokoyama*, Keiichi Yokoyama*, and Toshiyuki Takayanagi#

*Department of Materials Science and #Advanced Science Research Center, Japan Atomic
Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan

Photodissociation dynamics of CBrClF2 at 157 nm has been studied using a photofragment
translational spectroscopy.  Primary dissociations of CBrClF2 occurred competitively
through a C-Cl bond rupture, a C-Br bond rupture, and a triple dissociation in which the C-Cl
and C-Br bonds break simultaneously.  The occurrence of the triple dissociation was
confirmed by a wavepacket calculation on the nsigma*(C-Cl) and nsigma*(C-Br) diabatic 
surfaces.