The photodissociation of CF3I at 248 nm was performed on our high-resolution photofragment translational spectrometer. For further improvement of the resolution, we have taken the following procedures: (1) Kr was used as carrier gas, (2) optimum molecular beam angle theta(opt) (when V-MB 1 V-CM) was selected, (3) the longitudinal molecular beam angle spread was reduced, and (4) the ionization region for photofragments was diminished. The photofragment translational spectra of I (P-2(1/2)) reveal eight well-resolved vibrational peaks. The highest peak was assigned to be v(2) = 5 of the v(2) vibrational mode, and then the dissociation energy would be D-0 (C-I) = 18 810 +/-200 cm(-1) = 53.8 +/- 0.6 kcal/mol. (C) 2003 Elsevier B.V. All rights reserved.