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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

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

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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. - PowerPoint PPT Presentation

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Page 1: 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.pptagust,heima,...CH3Br/CH3Br65960_66120-070809vhwak.pxp

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

-14

-12

-10

-8

-6

-4

-2

0x1

03

30025020015010050 pnt

H+

C+

CH381Br+

CH379Br+

81Br+

79Br+

CH3+

CH2+

CH+

Wave656 vs pnt

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

322

320

318

316

314

312

310

308

66.0866.0666.0466.0266.0065.98x103

2hv

pnt

CH381Br+

CH379Br +

2D REMPI spectra:

Page 4: CH3Br,    7.-9.08.09 2D & 1D REMPI spectra for “66037 system” /  [ 3/2 ] 5p;0 system

1200

1000

800

600

400

200

0

-200

66.0866.0666.0466.0266.0065.9865.96x103

CH381Br+

CH379Br +

2hv

1D REMPI spectra:

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

200

100

0

-100

-200

66.0866.0666.0466.0266.0065.9865.96x103

81Br+

79Br +

Page 6: CH3Br,    7.-9.08.09 2D & 1D REMPI spectra for “66037 system” /  [ 3/2 ] 5p;0 system

300

298

296

294

292

290

288

30025020015010050

81Br+

79Br +

2hv

pnt

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

1200

1000

800

600

400

200

0

-200

66.0866.0666.0466.0266.0065.9865.96x103

81Br+

CH381Br+

2hv

Page 8: CH3Br,    7.-9.08.09 2D & 1D REMPI spectra for “66037 system” /  [ 3/2 ] 5p;0 system

1500

1000

500

0

-500

66.0866.0666.0466.0266.0065.9865.96x103

81Br+ x 4

CH381Br+

2hv

Page 9: CH3Br,    7.-9.08.09 2D & 1D REMPI spectra for “66037 system” /  [ 3/2 ] 5p;0 system

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:

Page 10: CH3Br,    7.-9.08.09 2D & 1D REMPI spectra for “66037 system” /  [ 3/2 ] 5p;0 system

150

145

140

135

130

66.0866.0666.0466.0266.0065.98x103

CH3+

CH2+

CH+

C+

pnt

2hv

Page 11: CH3Br,    7.-9.08.09 2D & 1D REMPI spectra for “66037 system” /  [ 3/2 ] 5p;0 system

15

10

5

0

x103

66.0866.0666.0466.0266.0065.9865.96x103

CH3+

pnt=141

CH2+

pnt=137

CH+

C+

800

600

400

200

0

66.0866.0666.0466.0266.0065.9865.96x103

CH+ pnt=133

C+ pnt=128

Page 12: CH3Br,    7.-9.08.09 2D & 1D REMPI spectra for “66037 system” /  [ 3/2 ] 5p;0 system

CH3+, CH2

+, CH+ and C+ ion spectra all show Rydberg spectra structure

09.08.09:

Page 13: CH3Br,    7.-9.08.09 2D & 1D REMPI spectra for “66037 system” /  [ 3/2 ] 5p;0 system

56

55

54

53

52

66.0866.0666.0466.0266.0065.98x103

H+

pnt

2hv

Page 14: CH3Br,    7.-9.08.09 2D & 1D REMPI spectra for “66037 system” /  [ 3/2 ] 5p;0 system

300

250

200

150

100

50

0

66.0866.0666.0466.0266.0065.9865.96x103

H+

pnt = 54

2hv

Page 15: CH3Br,    7.-9.08.09 2D & 1D REMPI spectra for “66037 system” /  [ 3/2 ] 5p;0 system

even H+ ion REMPI spectra show Rydberg spectra structure

ERGO:1D REMPI spectra of all ions (H+, C+, CH+, CH2

+ , CH3+ , 79Br+ , 81Br+ , CH3

79Br+ , CH381Br+ )

look the same, i.e ca. bell shaped, such as:

1200

1000

800

600

400

200

0

66.0866.0666.0466.0266.0065.9865.96x103

CH381Br+

2hv

Page 16: CH3Br,    7.-9.08.09 2D & 1D REMPI spectra for “66037 system” /  [ 3/2 ] 5p;0 system

-800

-600

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0

x103

30025020015010050

1D REMPI for integrating points 123 – 189:

ions Mw Pnt:H+ 1 54

C+ 12 128.3

CH+ 13 132.8

CH2+ 14 137

CH3+ 15 141

79Br+ 79 29281Br+ 81 295.2

CH379Br+ 94 311.8

CH381Br+ 96 315

Page 17: CH3Br,    7.-9.08.09 2D & 1D REMPI spectra for “66037 system” /  [ 3/2 ] 5p;0 system

300

250

200

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100

8642

Coefficient values ± one standard deviation a = 25.243 ± 1.13 b = 29.773 ± 0.168

Pnt = 29.773 sqrt(Mw) + 25.243

pnt

Sqrt(Mw)

Page 18: CH3Br,    7.-9.08.09 2D & 1D REMPI spectra for “66037 system” /  [ 3/2 ] 5p;0 system

250

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150

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8642

Coefficient values ± one standard deviation a = 24.04 ± 0.135 b = 30.144 ± 0.0243

Pnt = 30.144 sqrt(Mw) + 24.04Mw = ((pnt-24.04)/30.144)**2

Page 19: CH3Br,    7.-9.08.09 2D & 1D REMPI spectra for “66037 system” /  [ 3/2 ] 5p;0 system

-800

-600

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-200

0x1

03

100806040200

Mw/ amu

Wave1301 vs Mwb