1. CH2Br2 agust,www,....ch2br2/PPT-121011ak.ppt agust,heima,....CH2Br2/Long, Sept-11/Merged CH2Br2 spectra-121011jlak.pxp agust,heima,....CH2Br2/Long, Sept-11/Merged CH2Br2 spectra-121011jlaka.pxp

2. 6s78912 4d5610 6p7811  (lower)  (upper) d1.300.91 p2.712.38 s3.142.96 agust,heima,....CH2Br2/Long, Sept-11/Merged CH2Br2 spectra-121011jlak.pxp C+C+ CH 2 + CH + Estimated position ranges for Rydberg states See values in A. Kvaran et al. CPL, 2011

3. agust,heima,....CH2Br2/Long, Sept-11/Merged CH2Br2 spectra-121011jlak.apxp 1hv C+C+ CH 2 + CH + d p s 8,a1 6 8,b16 9,b2 6 Assignments According To Causley & Russell ´75 Our Rydb. State Position estimates

4. agust,heima,....CH2Br2/Long, Sept-11/Merged CH2Br2 spectra-121011jlak.apxp C+C+ CH 2 + CH + 1hv 8,b2 7,b2 6,a1 7,b1

5. Comments: It is not easy to pin down Rydbergs assignments for REMPI peaks However, there is a reason to believe that s-Rydberg states are not important The pronouncing peak at about 79650 cm -1 most probably is a 6d Rydberg state The peak near 80300 cm -1 most probably is a 8p Rydberg state The peak near 80900 cm -1 (see CH 2 + spectrum) could be a 7d Rydberg state It is noteworthy that the sharp C+ peak at 80664 cm -1 is in between the “8p and 7d Rydberg states. It could be because of transition to either of these with enhanced signal due to switching from “three-photon ionization of C” to “two-photon ionization of C” OR it could be due to a largely enhanced ionization of the s-Rydberg state observed in the 1hv spectrum(?) Most probably one needs to consider Rydberg states which converge to excited ion states analogous to that for CF3Br and CH3Br and analogous to that done by Causley and Russell in ´75 for CH2Br2. Causley ´s and Russell´s analysis are not at all convincing: 1) Up to date differ a lot to that used by C & R