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CF 3 Br Mw calibration and 1D-REMPI spectra for i Br + and CF 3 + ; data file “ 20450_20480”

CF 3 Br Mw calibration and 1D-REMPI spectra for i Br + and CF 3 + ; data file “ 20450_20480” Ref. (file storages) : agust, heima, ...CF3Br/PXP-100910ak.pxp (IGOR file) agust, www,....cf3br/PPT-110910ak.ppt (PPT file). Update: 130910. CF 3 Br; 100910ak Wave129 ( 81903.32 cm-1 )

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CF 3 Br Mw calibration and 1D-REMPI spectra for i Br + and CF 3 + ; data file “ 20450_20480”

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  1. CF3Br Mw calibration and 1D-REMPI spectra for iBr + and CF3 +; data file “20450_20480” Ref. (file storages) : agust, heima, ...CF3Br/PXP-100910ak.pxp (IGOR file) agust, www,....cf3br/PPT-110910ak.ppt (PPT file) Update: 130910

  2. CF3Br; 100910ak Wave129 (81903.32 cm-1) Data file: 20450_20480 Mw calibration: Mw = ((x-a)/b)2; b = slope; a = intersect value from line fit analysis: x=b*(Sqrt(Mw)) + a x = pnt Based on (see next slide): N2 + Coefficient values ± one standard deviation a = -864.45 ± 1.18 b = 536.77 ± 0.156 C + Pnt/x Mw Sqrt(Mw) 995 12 3.4641 3906 79 8.88819 3967 81 9 C2 + CF3 +; 69 amu iBr +; i=79,81 C3+ Mw /amu agust, heima, ...CF3Br/PXP-100910ak.pxp (IGOR file), Layout: 2, Graph: 7

  3. Pnt/x Coefficient values ± one standard deviation a = -864.45 ± 1.18 b = 536.77 ± 0.156 SQRT(Mw) agust, heima, ...CF3Br/PXP-100910ak.pxp (IGOR file), Layout: 4 Graph: 2; Table: 0

  4. Comparison of mass spectra in beginning (2hv = 81800 cm-1) and end(2hv = 81920 cm-1) of scan See next slides:

  5. CF3Br; 100910ak Wave0 (81800 cm-1) Data file: 20450_20480 N2 + C + NO iBr +; i=79,81 observed C2 + CF3 +; 69 amu C3+ Mw /amu agust, heima, ...CF3Br/PXP-100910ak.pxp (IGOR file), Layout: 8, Graph: 13

  6. CF3Br; 100910ak Wave149 (81919.37 cm-1) Data file: 20450_20480 N2 + C + NO iBr +; i=79,81 observed C2 + CF3 +; 69 amu C3+ Mw /amu agust, heima, ...CF3Br/PXP-100910ak.pxp (IGOR file), Layout: 7, Graph: 12

  7. 1D – REMPI spectra derived from 2D-REMPI spectra See next slides:

  8. 1D-REMPI Int Integrated intensity of CF3+ signal vs 2hv NB! 1)Not corrected for Laser power 2) Includes “offset-bgr” 2hv = 4 x hv(Laser) / cm-1 agust, heima, ...CF3Br/PXP-100910ak.pxp (IGOR file), Layout: 3, Graph: 9

  9. 1D-REMPI Int Integrated intensity of iBr+ signal vs 2hv NB! 1)Not corrected for Laser power 2) Includes “offset-bgr” 2hv = 4 x hv(Laser) / cm-1 agust, heima, ...CF3Br/PXP-100910ak.pxp (IGOR file), Layout: 6, Graph: 10

  10. Comments: • Long: We need to record Integrated intensities of the Mass peaks without the “offsett • Background”: NB! The CF3+ signal could be a broad continuum. Hence wee need to see • what is the CF3+ signal minus the “offset-background”, i.e. We need to know the “real • Zero intensity”: “Intb” “Inta” Record and plot “Inta”, not “Intb” Mass spectrum: “offset background” 2) NB!: Shape of mass spectra is not symmetric, which, according to previous experience, suggests that you are not focusing on the molecular beam, but rather shortly outside the beam center. Please check this.

  11. Intb with “offset bgr” Integrated intensity of CF3+ signal vs 2hv NB! 1)Not corrected for Laser power Inta after use of “REMPI Integrate V2.1.ipf” 2hv = 4 x hv(Laser) / cm-1 Update: 130910 agust, heima, ...CF3Br/PXP-100910ak.pxp (IGOR file), Layout: 9, Graph: 14

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