1. 6pp 3S- vs l / J´ Updated: 17.2.2016 One color, H+ detection: pages
KER spectra, J´= 8 and 0-1 from autumn 2013………………… 2
KER spectra, J´=8, (1:1 mix): 3 sets(exp ).…………
KER spectra, J´=8 vs. Mix (exp )………………………….. 5
Selected „best“ KER spectrum, J´=8…………………………………. 6
KER spectra vs. Lamda………………………………………………………. 7-10
Comparison of wavelength scans and J´s …………………………
REMPI spectra…………………………………………………………………
I(H*+Br*)/I(H*+Br) vs. l (J´) and 2hn……………………………
Shifts of the l(exp.) scale (by about 10.5 cm-1)……………… 23-26
the intensity ratios with respect to total KER intensity……
the „H*(n=3) + Br“ prediction vs the lowest KER peak……… 32-34
Angular distribution analysis……………………………………………
Prediction calculations for KER spectra……………………………… 49-62
Search for v+(max) for HBr+ and HBr+*………………………………
Precision of the shift procedure………………………………………… 66-68
Near-degenerate interaction 6pp <-> V(m+17)…………………. 69
KERs vs REMPI spectra, summary (figure+ text…………………
Relative intensities of channels signals……………………………… 72-74
Angular distribution (b2) summary (fig. + text)… ………………
VMI vs. KER for J´ ca. 8,7,6,5,4,2………..……………………………
Beta4 vs. J´ ………………………………………………………………………… 83 Excitations via J´= 0 and 8 in 6ppi from J´= J´………………………. 84
Updated:

2. HBr +(1/2) peaks 3S-, J´= 8; 0-1(?) H+ + Br(1/2) HBr +(3/2) peaks
From autumn 2013
100% HBr
50:50 = HBr:He
H+ +
Br(3/2)
KER/eV
Lay:0,Gr:0

3. 6pp 3S-, J´= 8; exp: 141010 50%:50% HBr:He mix Set3 Set2 Set1 pix
…PXP ,pxp; Lay:0; Gr:4;

4. 6pp 3S-, J´= 8; exp: 141010 50%:50% HBr:He mix Set3 Set2 Set1 pix
…PXP ,pxp; Lay:0; Gr:4;

5. 6pp 3S-, J´= 8; exp: 141013 Set3: 1:1 = HBr:He Set2: 1:0= HBr:He
Identical spectra
pix
…PXP ,pxp; Lay:1; Gr:5;

6. 6pp 3S-, J´= 8; exp:
Use 50%:50% spectrum from , which shows best resolution in the
HBr+/HBr+* (v+) peak reagion for some reason.
Let´s perform
-prediction calculations.
-angular distrib. analysis

7. 6pp 3S-, J´= 8; exp: 141013 Landa= 235.952 235.900 235.863 KER/eV
; Lay:2; Gr:6;

8. 6pp 3S-vs l( J´); exp: 141014 Landa/nm= 235.952 235.950 235.945
KER/eV
; Lay:5; Gr:11;

9. 6pp 3S-vs l( J´); exp: 141014 Landa/nm= KER/eV
Could be due to H*(n=3) + Br
See:
Landa/nm=
KER/eV
; Lay:5; Gr:11;

10. 6pp 3S-vs l( J´); exp: 141014 & 141015 Landa/nm= KER/eV 235.900
KER/eV
; Lay:6; Gr:12;

11. 6pp 3S-vs l( J´); exp: 141014 Exp. Scans Shifted by 7 down Landa/nm=
J´=J‘‘= 9 8 7 6 5 4 3 2 1
Exp. Scans Shifted by 7
down
Landa/nm=
cm-1
KER/eV
; Lay:5; Gr:11; ATH
;Lay6, Gr:12

12. 6pp 3S-vs l( J´); exp: 141014 Exp. Scans Shifted by 7 Landa/nm= down
J´=J‘‘= 9 8 7 6 5 4 3 2 1
Exp. Scans Shifted
by 7
down
H*+
Br*
Landa/nm=
H*+ Br
KER/eV
; Lay:5; Gr:11;
;Lay6, Gr:12

13. 6pp 3S-vs l( J´); exp: 141014 & 141015 Exp. Scans Shifted by 7
J´=J‘‘= 9 8 7 6 5 4 3 2 1
Exp. Scans Shifted by 7
down
Landa/nm=
cm-1
KER/eV
; Lay:6; Gr:12; ATH
;Lay6, Gr:12

14. 6pp 3S-vs l( J´); exp: 141014 & 141015 Exp. Scans (0.005 nm steps)
J´=J‘‘= 9 8 7 6 5 4 3 2 1
Exp. Scans (0.005 nm steps)
Shifted by 7 down
Landa/nm=
cm-1
H*+
Br*
H*+ Br
KER/eV
; Lay:6; Gr:12;
;Lay6, Gr:12

15. 6pp 3S-vs l( J´)
Comments:
In slides I have shifted the laser wavelengths by 7 cm-1 down in energy on the two-wavenumber scale which I feel that is realistic based on the noice level of the highest energy KER spectra (ca nm) which suggest that the edge of the Q line serie for the 6pp 3S- system is close to nm
It is noteworthy that the nm spectra, where large structural alterations are seen in the KER spectra, are indeed in the J´= 7 – 8 region where near-resonance is found to occur.
The ratio I(H*+Br*)/I(H*+Br)increases as l / J´ increases

16. Rotational peak positions
Perturbation
region
Exp. Scans in steps of nm (shifted up by 7 cm-1)
Rotational peak positions
J´=
; Lay:4; Gr:7;

17. The lower energy region (spectrum from Long, 141013):
6pp 3S-, …etc.; closer look at mass resolved REMPI spectra in the 6pp 3S- region and
The lower energy region (spectrum from Long, ): ?
2hv/
cm-1
…6ppi 3sigma.pxp; Lay:0; Gr:0; eða:
sigma.pxp

18. The lower energy region (spectrum from Long, 141013):
6pp 3S-, …etc.; closer look at mass resolved REMPI spectra in the 6pp 3S- region and
The lower energy region (spectrum from Long, ):
Br ->->Br** (2+1)REMPI atomic line ? ?
The HBr+ spectrum seems to be shifted a bit relative to the others
…6ppi 3sigma.pxp; Lay:0; Gr:0; eða:
sigma.pxp

19. 6pp 3S-vs l( J´); exp: 141014 Landa/ nm= KER/eV H*+ H*+ Br Br* 235.952
H*+
Br*
H*+ Br
KER/eV
; Lay:5; Gr:11;

20. 6pp 3S-vs l( J´); exp: 141014 & 141015 Landa/nm= KER/eV H*+ H*+ Br Br*
H*+
Br*
KER/eV
; Lay:6; Gr:12;

21. 6pp 3S-vs l( J´); exp: 141014 & 141015 I(H*+Br*)/ I(H*+Br) l(exp)/nm
; Lay:7; Gr:13;

22. 6pp 3S-vs l( J´); exp: 141014 & 141015 2hn(exp.)/cm-1 I(H*+Br*)/
; Lay:8; Gr:14;

23. Exp. scans cm-1 Landa/ nm= Comments:
Careful look at the KER´s for the higher wavelength excitations (see slide 12) reveals that the noice levels for the , and and nm spectra are larger than those for the – nm spectra. This suggest that the – nm spectra correspind to the J´= 7 – 8 peaks whereas the , and and nm spectra correspond to the big gaps between the J‘ = 8-9 and 6-7 peaks: ERGO lets shift the exp wavelengths a bit further down.
J´=J‘‘= 9 8 7 6 5 4 3 2 1
Exp. scans
cm-1
Landa/
nm=
; Lay:5; Gr:11

24. 6pp 3S-vs l( J´); exp: 141014 Exp. Scans Shifted by 10.5 cm-1 down
J´=J‘‘=
Rot. lines 9 8 7 6 5 4 3 2 1
Exp. Scans
Shifted by 10.5
cm-1 down
H*+
Br*
l/Lamda
Exp.
/nm=
The near-
resonance
interaction
region
H*+ Br
The near-
resonance
interaction
region
KER/eV
; Lay:5; Gr:11;
;Lay6, Gr:12

25. Spectrum“ is close to the Band head / edge of the Q line series.
6pp 3S-vs l( J´); exp: &
J´=J‘‘=
Rot. lines 9 8 7 6 5 4 3 2 1
ERGO: the „ nm“
Spectrum“ is close to the
Band head / edge of the
Q line series.
Exp. Scans (0.005 nm steps)
Shifted by 10.5 cm-1 down
cm-1
H*+
Br*
H*+ Br
Lamda/nm=
KER/eV
; Lay:6; Gr:12;
;Lay6, Gr:12

26. 6pp 3S-vs l( J´); exp: 141014 & 141015 235.950 nm 235.855 nm
I(H*+Br*)/
I(H*+Br) nm nm
Rotational
lines
J´=J´´=
2hn/ (shifted up by 10.5 cm-1)
cm-1
; Lay:8; Gr:14;

27. Now let´s look at,
-the intensity ratios with respect to total KER intensity. x

28. 6pp 3S-vs l( J´); exp: 141014 l/ nm= KER/eV H*+ Br* H*+ Br 235.952
H*+
Br*
H*+ Br
KER/eV
; Lay:5; Gr:11;

29. 6pp 3S-vs l( J´); exp: 141014 & 141015 Landa/ nm= I(total): KER/eV
I(total):
KER/eV
; Lay:6; Gr:12;

30. 6pp 3S-vs l( J´); exp: 141014 & 141015 Intensity ratios 235.950 nm
I(H*+Br*)/
I(total) nm
Rotational
lines nm
J´=J´´=
I(H*+Br)/
I(total)
2hn/ (shifted up by 10.5 cm-1)
cm-1
; Lay:9; Gr:15;

31. 6pp 3S-vs l( J´); exp: 141014 & 141015 Intensity ratios Rotational
I(HBr+/HBr+*)/
I(total)
estimated
Rotational
lines
J´=J´´=
2hn/ (shifted up by 10.5 cm-1)
cm-1
; Lay:10; Gr:17;

32. Now let´s look at,
-the „H*(n=3) + Br“ prediction vs the lowest KER peak

33. 6pp 3S-vs l( J´); exp: 141014 & 141015 10.5 cm-1 KER/eV
l(exp)/ 2hv corr. 3hv corr. 3hv corr +
nm= (shifted) (shifted) E(J´=7):
10.5 cm-1
, , ,8
, ,5
, , ,2
, , ,9
, , ,6
, , ,3
, ,
KER/eV
These values can be compared
with the energy threshold for
H*(n=3) + Br formation =
cm-1
; Lay:5; Gr:11;
sheet: “int.ratios”

34. https://notendur.hi.is/~agust/rannsoknir/Crete/PPT-131209.pptx :
H*(n=3) + Br *

35. 6pp 3S-vs l( J´); exp: &
Angular distribution analysis
(in preparation):

36. nm

41. 6pp 3S-vs l( J´); exp: 141014 & 141015 pix HBr+/HBr+* H*+ H*+ Br* Br
H*(n=3) +
Br (?)
pix
; Lay:12; Gr: 0

42. 6pp 3S-vs l( J´); exp: 141014 & 141015 q l(exp)/nm= 235.925 235.950
; Lay:6; Gr: 2

43. 6pp 3S-vs l( J´); exp: 141014 & 141015 q q l(exp)/ l(exp)/ nm= nm=
l(exp)/
nm= q q
; Lay:7; Gr: 7,10

44. 6pp 3S-vs l( J´); exp: 141014 & 141015 q q l(exp)/ l(exp)/ nm= nm=
l(exp)/
nm= q q
; Lay:8; Gr: 11,12

45. 6pp 3S-vs l( J´); exp: 141014 & 141015 q q l(exp)/ l(exp)/ nm= nm=
l(exp)/
nm= q q
; Lay:9; Gr: 16,17

46. 6pp 3S-vs l( J´); exp: 141014 & 141015 q q l(exp)/ l(exp)/ nm= nm=
l(exp)/
nm= q q
; Lay:10; Gr: 19,18

47. 6pp 3S-vs l( J´); exp: 141014 & 141015; beta2 vs l(exp)
D,F (HBr+/HBr+*) b2
B (H*+Br*)
C (H*+Br)
A (H**+Br)?
l (exp) / (~J´)
; Lay:11; Gr:1

48. 6pp 3S-vs l( J´); exp: &
Comments:
The HBr+/HBr+* signals are close to be purely parallel
The H*+Br* signal shows an increasing parallel character with l / J´
The H*+Br signal is close to „neutral „ (neither paralles or perpendicular throughout
The H** + Br (?) signal is perpendicular

49. 6pp 3S-vs l( J´); exp: &
Prediction calculations for KER peaks:

50. 6pp 3S-vs l( J´); exp: 141014 & 141015; prediction calculations for J´= 6 - 8/for H*+Br/Br*
l/Lamda
Exp.
/nm=
ca. J´= 8
ca. J´= 7
ca. J´= 6
H*+ Br
KER/eV
; Lay:5; Gr:11;
; sheet:KER, I,II

51. 6pp 3S-vs l( J´); exp: 141014 & 141015; prediction calculations for J´= 0 – 5/for H*+Br/Br*
Lamda/nm=
ca. J´= 5
ca. J´= 4
ca. J´= 3
ca. J´=2
ca. J´= 1
ca. J´= 0
KER/eV
; Lay:6; Gr:12;
; sheet:KER, I,II

52. Now let´s perform prediction calculations for J´ ca. 5-8
with respect to HBr+/HBr+*:

53. 6pp 3S-vs l( J´); exp: 141014 Landa/nm= KER/eV
Could be due to H*(n=3) + Br
See:
Landa/nm=
ca. J´= 8
ca. J´= 7
ca. J´= 6
ca. J´= 5
KER/eV
; Lay:5; Gr:11;

54. Comment:
The structural changes with l / J´ suggest that higher v+ levels are populated as
J´ increases from 5 to 8 suggesting that longer internuclear distance transitions are
occuring as J´changes from 5 to 8 OR
3/2 <- 3/2 transitions increasing over ½ <- ½ transitions as J´ changes from 5 to 8

55. Based on Fig. 153 p: 320 in Herzberg (Spectra of diatomic molecules):
transitions from (J1,J2) to (L,S) coupling for the molecular states arising from
3P + 2S of the separated atoms the following holds for HBr H + Br + :
Relative
Energy1) 4P
2S1/2 + 3P0
1/2
cm-1
1/2 2S
1/2
cm-1
2S1/2 + 3P1
3/2 4S
1/2
2S1/2 + 3P2 2P
3/2
HBr+
H(2S1/2)+Br+(3PJ)
1) From NIST, atomic energy levels for Br+

56. Hence the assymptotic values of the HBr+(3/2) and HBr+
Hence the assymptotic values of the HBr+(3/2) and HBr+*(1/2) states correspond to
H + Br+(3P1) and H + Br+(3P0) respectively.

57. E/cm-1 E(1/2; v+) E(3/2; v+) V+
E(H+Br+(3P0)) = D(HBr)+IE(Br)+E(Br+ (3P0))
E(H+Br+(3P1)) = D(HBr)+IE(Br)+E(Br+ (3P1))
E(H+Br+(3P2)) = D(HBr)+IE(Br)+E(Br+ (3P2))
E(1/2; v+)
E(3/2; v+) V+
; Lay:11; Gr:18;
; sheet:KER, I,II

58. E/cm-1 v+(1/2) v+(3/2) E(1/2; v+) E(3/2; v+) V+ 28 129332.35
E(H+Br+(3P0)) = D(HBr)+IE(Br)+E(Br+(3P0)) 31
v+(1/2)
E(H+Br+(3P1)) = D(HBr)+IE(Br)+E(Br+(3P1))
J´=J´´= 8 7 6 5 21 25
v+(3/2) 24 20
E(1/2; v+)
E(3/2; v+)
E(H+Br+(3P2)) = D(HBr)+IE(Br)+E(Br+ (3P2)) V+
; sheet:KER, I,II
; sheet:KER, I,II
; Lay:11; Gr:18;

59. 6pp 3S-vs l( J´); exp: 141014 & 141015 l(exp)= 235.900, ca. J´= 5
See slide 58
See slide 58
v+(1/2)=
½ <- ½
3/2 <- 3/2
v+(3/2)=
KER/eV ;
sheets:KER, I,II & KER,III,IV
; Lay:12; Gr:19;

60. 6pp 3S-vs l( J´); exp: 141014 & 141015 l(exp)= 235.940, ca. J´= 8
See slide 58
See slide 58
v+(1/2)=
½ <- ½
3/2 <- 3/2
v+(3/2)=
KER/eV ;
sheets:KER, I,II & KER,III,IV
; Lay:13; Gr:20;

61. 6pp 3S-vs l( J´); exp: 141014 & 141015 l(exp)= 235.900, ca. J´= 5
v+max (see slide 58)
v+max(see slide 58)
v+(1/2)=
½ <- ½
3/2 <- 3/2
v+(3/2)=
KER/eV ;
sheets:KER, I,II & KER,III,IV
; Lay:14; Gr:21;

62. 6pp 3S-vs l( J´); exp: &
comments:
v+ assignments of peaks in v + structure of HBr +/HBr + * is not clear
Possibly because of uncertainty in evaluations of v + peaks near the upper limit (i.e near v+(max))
The highest energy peak in the HBr + /HBr + * (v+) structure, which is found
to increase as J´ increases from 5 to 8 must be due to
HBr + (not HBr+*) based on the energetics. Most probably the 2.87 eV peak, which is found to decrease as J´ increases from 5 to 8 then is due to
HBr+*.

63. E/cm-1 v+(1/2) v+(3/2) E(1/2; v+) E(3/2; v+) V+
Curve lowered by changing wexe = > (1/2)
Curve lowered by changing wexe = > (3/2)
E/cm-1 28
E(H+Br+(3P0)) = D(HBr)+IE(Br)+E(Br+(3P0))
v+(1/2) 30 31
E(H+Br+(3P1)) = D(HBr)+IE(Br)+E(Br+(3P1))
J´=J´´= 8 7 6 5
v+(3/2) 25 21 24
E(1/2; v+) 20
E(3/2; v+)
E(H+Br+(3P2)) = D(HBr)+IE(Br)+E(Br+ (3P2)) V+
; Lay:11; Gr:18;
; sheet:KER, I,II

64. 6pp 3S-vs l( J´); exp: 141014 & 141015 l(exp)= 235.900, ca. J´= 5
v+max (see slide 63)
v+max(see slide 63)
v+(1/2)=
½ <- ½
3/2 <- 3/2
v+(3/2)=
KER/eV
; sheet:KER, I,II & III,IV
; Lay:13; Gr:20;

65. 6pp 3S-vs l( J´); exp: 141014 & 141015 l(exp)= 235.940, ca. J´= 8
See slide 63
See slide 63
v+(1/2)=
½ <- ½
3/2 <- 3/2
v+(3/2)=
KER/eV
; sheet:KER, I,II & III,IV
; Lay:14; Gr:21;

66. 6pp 3S-vs l( J´); exp: &
comments:
Although it is not clear what v+ levels the individual peaks in the HBr+/HBr+* KER spectrum
correspond to, clearly higher v+ levels are populated via J´= 8 excitation (hence via the V state)
than via v´= 5 which makes sense by comparison with earlier work on HCl by Loock and our
conclusions concerning HI in our latest subission.
151021: I checked how shifting of 2hv by cm-1 compared to a corresponding shift of l
by using the following criteria:
Assume that l(measured) = corresponds to 2hv(J´=J´´ = 0) = cm-1
(according to C & G: see
Page 4632) => i.e. l(measured) = <-> L = 235, nm and shifted all l(measured)
By the difference (= , = 0.029):

67. B C D E F G
Lamda
2hv from column F
2hv in D shifted:
assuming <->
lamda
1hv
2hv
2hv +10,5
cm-1
235,95
42381,86
84763,72
84774,22113
235,
84774,14771
235,945
42382,76
84765,52
84776,01739
235,
84775,94441
235,94
42383,66
84767,31
84777,81372
235,
84777,74119
235,935
42384,56
84769,11
84779,61014
235,
84779,53804
235,93
42385,45
84770,91
84781,40662
235,
84781,33497
235,925
42386,35
84772,7
84783,20319
235,
84783,13198
235,92
42387,25
84774,5
84784,99983
235,
84784,92906
235,915
42388,15
84776,3
84786,79655
235,
84786,72622
235,91
42389,05
84778,09
84788,59334
235,
84788,52346
235,905
42389,95
84779,89
84790,39021
235,
84790,32077
235,9
42390,84
84781,69
84792,18716
235,
84792,11815
235,895
42391,74
84783,48
84793,98418
235,
84793,91562
235,89
42392,64
84785,28
84795,78128
235,
84795,71316
235,885
42393,54
84787,08
84797,57845
235,
84797,51077
235,88
42394,44
84788,88
84799,3757
235,
84799,30847
235,875
42395,34
84790,67
84801,17303
235,
84801,10624
235,87
42396,24
84792,47
84802,97043
235,
84802,90408
235,865
42397,13
84794,27
84804,76791
235,
84804,702
235,86
42398,03
84796,07
84806,56546
235,
84806,5
235,855
42398,93
84797,86
84808,36309
235,
84808,29807
235,85
42399,83
84799,66
84810,1608
235,
84810,09622
235,845
42400,73
84801,46
84811,95859
235,
84811,89445
Since the values in columns E and G are virtually the same the cm-1 shift (by 10.5 cm-1)
Is OK
sheet: int. ratios

68. Red lines: see slide above (no. 67)
6pp 3S-vs l( J´); exp: &
Red lines: see slide above (no. 67)
I(H*+Br*)/
I(H*+Br)
nm = lm
nm= lm
Rotational
lines
J´=J´´=
2hn/ (shifted up by 10.5 cm-1)
cm-1
; Lay:8; Gr:14;

69. J´
V1S+(v´=m+18) 5 :
Energy / cm-1 : J´
Near-degenerate
Interaction
W1S+(n=6; v´=0) 8 8 : 7 2 :
V1S+(v´=m+17) 4 :
6pp3S-(v´=0)

70. J´= J´= J´´ J´´ 8 8 7 7 E/cm-1 E/cm-1 6 6 5 5 4 4 3 3 2 2 1 1 H+
H*(n=3)
+ Br
H*(n=2)
+ Br*
HBr+*(v+)/
HBr+(v+)
H*(n=3)
+ Br
H*(n=2)
+ Br*
HBr+*(v+)/
HBr+(v+)
H*(n=2)
+ Br
H*(n=2)
+ Br
J´=
J´´
J´=
J´´
Near-degenerate
interaction
region
Near-degenerate
interaction
region 8 8 7 7
E/cm-1 6
E/cm-1 6 5 5 4 4 3 3 2 2 1 1 H+
H79Br+
; Lay:7; Gr:13;
; Lay:7; Gr:13;

71. H+ VMI – REMPI
for resonance excitations via the 6pp 3S-(v´= 0) Rydberg state
for J´= J´´ (Q lines) = 0 – 8. KER spectra recorded in steps of
Dl = nm (left). REMPI spectra for H+ and H79Br+ detections and J´/J´´ assignments tilted to the right. KER spectra closest to rotational
lines are highlighted in red
Judging from mass resolved REMPI analysis, near-degenerate interaction between
the 6pp 3S-(v´= 0) Rydberg state and the valence (ion-pair) state V 1S+ (v´= m + 17)
is occuring for J´ ~ 8 (7). According to theVMI data, for J´ ~ 8,
1) -H*(n = 3)+ Br appears,
2) – relative signal due to H*(n=2) + Br*
increases,
3) – signals for high v+ levels of HBr+/HBr+*
Increase relative to those for lower v+.

72. Near-degenerate interaction region Irel Irel Irel (HBr+/HBr+*)
Irel (Br*)
J´= J´´=
Irel (Br)
2hn / cm-1
; Lay:9; Gr:15;

73. H+ VMI – REMPI
for resonance excitations via the 6pp 3S-(v´= 0) Rydberg state
for J´= J´´ (Q lines) = 0 – 8. Irel(i) = I(channel i) /I(total) vs. 2hn / cm-1
Clearly :
Irel(Br*) increases in the near-degenerate interaction region
Irel(Br) in constant/unchanged with 2hn
Irel(HBr+/HBr+*) decreases in the near-degenerate interaction region

74. Irel Irel Irel (HBr+/HBr+*) Irel (H* +Br*) J´= J´´= 8 7 6 5 4 3 2 1 0
From Arnar

75. 6pp 3S-vs l( J´); exp: 141014 & 141015; beta2 vs 2hn
Near-degenerate
interaction
region
D(low v+),F(High v+) (HBr+/HBr+*) b2
B (H*(n=2)+Br*)
C(H*(n=2)+Br)
A (H**(n=3)+Br)?
J´= J´´=
2hn / cm-1
; Lay:13; Gr:3;

76. Comments:
The HBr+/HBr+* signals are close to be purely parallel
The H*(n=2) + Br* signal shows an increasing parallel character with l / J´
The H*(n=2) + Br signal is close to „neutral „ (neither paralles or perpendicular throughout
The H**(n=3) + Br signal is perpendicular

77. l(measured) = 235.940 = 235.911 nm 2hn = 84777.7 cm-1 J´= J´´ ~ 8
; Gr:4;

78. l(measured) = 235.935 = 235.906 nm 2hn = 84779.5 cm-1 J´= J´´ ~ 7
; Gr:25;

79. l(measured) = 235.915 = 235.886 nm 2hn = 84786.7 cm-1 J´= J´´ ~ 6
; Gr:23;

80. l(measured) = 235.900 = 235.871 nm 2hn = 84792.1 cm-1 J´= J´´ ~ 5
; Gr:8;

81. l(measured) = 235.885 = 235.856 nm 2hn = 84797.5 cm-1 J´= J´´ ~ 4
; Gr:6;

82. l(measured) = 235.870 = 235.841 nm 2hn = 84802.9 cm-1 J´= J´´ ~ 2
; Gr:5;

83. 6pp 3S-vs l( J´); beta4 vs 2hn
Near-degenerate
interaction
region
C(H*(n=2)+Br)
A (H**(n=3)+Br)?
B (H*(n=2)+Br*) b4
F(High v+), D(low v+), (HBr+/HBr+*)
J´= J´´=
2hn / cm-1

84. H*+Br* H*+Br E B V J´= 8 (6ppi(0)) J´= 8 (V(m+17)) J´= 0 (6ppi(0))
Lay:3, Gr: 0