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CH3Br, 7.-9.08.09 2D & 1D REMPI spectra for “66037 system” / [ 3/2 ] 5p;0 system

CH3Br, 7.-9.08.09 2D & 1D REMPI spectra for “66037 system” / [ 3/2 ] 5p;0 system agust,www...ch3br/PPT-070809aka.ppt agust,heima,...CH3Br/CH3Br65960_66120-070809vhwak.pxp. H +. C +. 79 Br +. CH 3 81 Br +. CH +. 81 Br +. CH 3 79 Br +. CH 2 +. CH 3 +. Wave656 vs pnt. pnt. pnt.

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CH3Br, 7.-9.08.09 2D & 1D REMPI spectra for “66037 system” / [ 3/2 ] 5p;0 system

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  1. CH3Br, 7.-9.08.09 2D & 1D REMPI spectra for “66037 system” / [3/2]5p;0 system agust,www...ch3br/PPT-070809aka.ppt agust,heima,...CH3Br/CH3Br65960_66120-070809vhwak.pxp

  2. H+ C+ 79Br+ CH381Br+ CH+ 81Br+ CH379Br+ CH2+ CH3+ Wave656 vs pnt pnt

  3. pnt 2D REMPI spectra: CH381Br+ CH379Br + 2hv

  4. 1D REMPI spectra: CH381Br+ CH379Br + 2hv

  5. 81Br+ 79Br +

  6. pnt 81Br+ 79Br + 2hv

  7. CH381Br+ 81Br+ 2hv

  8. CH381Br+ 81Br+ x 4 2hv

  9. No significant difference in 1D REMPI spectra for the two isotopomers • (for 79Br and 81Br) • No significant difference in 1D REMPI spectra structures for 81Br+ and CH381Br+ • spectra 08.08.09:

  10. pnt CH3+ CH2+ CH+ C+ 2hv

  11. CH3+pnt=141 CH+ pnt=133 CH2+ pnt=137 C+ pnt=128 CH+ C+

  12. CH3+, CH2+, CH+ and C+ ion spectra all show Rydberg spectra structure 09.08.09:

  13. pnt H+ 2hv

  14. H+ pnt = 54 2hv

  15. even H+ ion REMPI spectra show Rydberg spectra structure • ERGO: • 1D REMPI spectra of all ions (H+, C+, CH+, CH2+ , CH3+ , 79Br+ , 81Br+ , CH379Br+ , CH381Br+ ) • look the same, i.e ca. bell shaped, such as: CH381Br+ 2hv

  16. 1D REMPI for integrating points 123 – 189:

  17. pnt Coefficient values ± one standard deviation a = 25.243 ± 1.13 b = 29.773 ± 0.168 Pnt = 29.773 sqrt(Mw) + 25.243 Sqrt(Mw)

  18. Coefficient values ± one standard deviation a = 24.04 ± 0.135 b = 30.144 ± 0.0243 Pnt = 30.144 sqrt(Mw) + 24.04 Mw = ((pnt-24.04)/30.144)**2

  19. Wave1301 vs Mwb Mw/ amu

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