1. CH 3 Br: 021109 & 031009 Literature survey on Direct ion-pair state excitation vs Ion pair fomation via initial Rydberg state excitation (Rydberg doorway states) & Absorption due to A<-X Agust,www,...Nov09/PPT-021109ak.ppt

2. Observe close relationship between absorption spectra and ion-pair detection (as photofragment excitation (PHOFEX) and images) vs wavelength. Hence, they conclude that the ion-pair state is directly populated by photon absorption. In conclusion:

5. 0 20 40 60 80 100 120 CH 3 Br CH 3 Br* CH 3 + Br ( 2 P 3/2 ) CH 3 + Br*( 2 D 3/2 ) CH 3 + Br + + e - 78677 78677/2 = 39338.5 39338.5 103264.8 120137.8 x10 3 cm -1 o o Abs. due to transition to the repulsive state From C. Escure et al., JCP,130,244305, (´09) 24587.8 16873 (1) (2) (3) (4) (5) Solid curves: Calc. +: exp. See Fig. 4

6. 0 20 40 60 80 100 120 CH 3 Br CH 3 Br* CH 3 + Br ( 2 P 3/2 ) CH 3 + Br*( 2 D 3/2 ) CH 3 + Br + + e - 78677 78677/2 = 39338.5 39338.5 103264.8 120137.8 x10 3 cm -1 o o Abs. due to transition to the repulsive state From C. Escure et al., JCP,130,244305, (´09) 24587.8 16873 (1) (2) (3) (4) (5) Solid curves: Calc. +: exp. See Fig. 4 CH 3 Br + (3/2); 85031.2 From C. Escure et al., JCP,130,244306, (´09) 78677 76695 (CH 3 + + Br -) T. Ridley,..JPCA,112,7170, (08)