1 / 6

CH 3 Br; CH n + + Br energetics agust,www,....ch3br/PPT-110809ak

CH 3 Br; CH n + + Br energetics agust,www,....ch3br/PPT-110809ak.ppt. http://webbook.nist.gov/cgi/cbook.cgi?ID=C2229074&Units=SI&Mask=20#Ion-Energetics. => IE(CH3) = 9.84 ± 0.01 eV &. Appearance energy determinations Ion AE (eV) Other Products Method Reference Comment

pooky
Télécharger la présentation

CH 3 Br; CH n + + Br energetics agust,www,....ch3br/PPT-110809ak

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CH3Br; CHn+ + Br energetics agust,www,....ch3br/PPT-110809ak.ppt

  2. http://webbook.nist.gov/cgi/cbook.cgi?ID=C2229074&Units=SI&Mask=20#Ion-Energeticshttp://webbook.nist.gov/cgi/cbook.cgi?ID=C2229074&Units=SI&Mask=20#Ion-Energetics => IE(CH3) = 9.84 ± 0.01 eV & Appearance energy determinations Ion AE (eV) Other Products Method Reference Comment CH+ 15.58 ± 0.30 H2 EI Waldron, 1956 RDSH CH2+ 15.09 ± 0.03 H PI Chupka and Lifshitz, 1968 RDSH http://hyperphysics.phy-astr.gsu.edu/HBASE/Tables/diatomic.html => DE (H2) = 4.5 eV http://hyperphysics.phy-astr.gsu.edu/hbase/molecule/hmol.html => DE (H2) = 4.52 eV

  3. Energy CH+ + 2H + Br 4.5eV CH+ + H2 + Br 15.58 +4.5= 20.08 eV CH2+ + H + Br CH3+ + Br 15.58 eV 15.09 eV 9.84 eV CH3 + Br CH3Br DE(CH3-Br) 0

  4. HRH: change values to cm-1 and add to “energetic figure” for CH3Br

  5. Molecular Spectra and Molecular Structure; Constants of diatomci molecules By Huber and herzberg, (1979)....page 144: DE(CH+) (for formation of C+ + H) = 4.085 eV

  6. C+ + 3H + Br Energy 4.085eV 20.08 + 4.085= 24.17 eV CH+ + 2H + Br 4.5eV CH+ + H2 + Br 15.58 +4.5= 20.08 eV CH2+ + H + Br 15.58 eV CH3+ + Br 15.09 eV 9.84 eV CH3 + Br CH3Br DE(CH3-Br) 0

More Related