Vibrational state distributions following the photodissociation of CF3I near 304 nm

The photodissociation of CF3I has been studied near 304 nm. The partially resolved vibrational peaks in the I* and I channels reveal that the ν2 umbrella mode of CF3 is preferentially excited. Besides, in the I* channel, the extra vibrational peaks assigned to the umbrella mode of CF3 from the hot band ν 3 ′ = 1 , 2 states of CF3I are also partially resolved. The Eint/Eavl shows a gradual increase as the state of CF3I changes from ν 3 ′ = 0 to ν 3 ′ = 2 . The anisotropy parameter is also obtained and discussed with the interrelation of the 3Q1, 3Q0, and 1Q1 potential energy surfaces.