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Bromomethylidyne


Constants of diatomic molecules

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Klaus P. Huber and Gerhard H. Herzberg

Symbols used in the table of constants
SymbolMeaning
State electronic state and / or symmetry symbol
Te minimum electronic energy (cm-1)
ωe vibrational constant – first term (cm-1)
ωexe vibrational constant – second term (cm-1)
ωeye vibrational constant – third term (cm-1)
Be rotational constant in equilibrium position (cm-1)
αe rotational constant – first term (cm-1)
γe rotation-vibration interaction constant (cm-1)
De centrifugal distortion constant (cm-1)
βe rotational constant – first term, centrifugal force (cm-1)
re internuclear distance (Å)
Trans. observed transition(s) corresponding to electronic state
ν00 position of 0-0 band (units noted in table)
Diatomic constants for 12C(79)Br
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
A2 2Delta5/2 1 2   [0.4956]   [0.0000012]  [1.815] 3 A2 larrow X2 V 32753.1 Z
Simons and Yarwood, 1961; missing citation
  2        [1.815] 3 (A2 larrow X1) (33218.4) H
Simons and Yarwood, 1961; missing citation
A1 2Delta3/2  2   4      (A1 larrow X2) (32699.1) H
Simons and Yarwood, 1961; missing citation
  2         A1 larrow X1 5 33163.5
Simons and Yarwood, 1961; missing citation
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
X2 2Pi3/2 6 2   [0.4877]   [0.0000006]  [1.823] 7  
X1 2Pi1/2 0 2        [1.823] 7  

Notes

1A0 = +28.
2DeltaG"(1/2) - DeltaG'(1/2) = +93.7 (F1) and DeltaG"(1/2) - DeltaG'(1/2)= +82.8 (F2).
3From the "true" B0 = 0.4912.
4Both v=0 and v=l of A1 are predissociated.
5Undegraded diffuse band.
6A0= +466.
7From the "true" B0 = 0.4872.
8From the predissociation in A1 2Delta3/2(v=0). Study of flame reactions Miller and Palmer, 1964 suggests 2.86 eV.

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Simons and Yarwood, 1961
Simons, J.P.; Yarwood, A.J., Decomposition of hot radicals. Part 1. The production of CCl and CBr from halogen-substituted methyl radicals, Trans. Faraday Soc., 1961, 57, 2167. [all data]

Miller and Palmer, 1964
Miller, W.J.; Palmer, H.B., Chemiluminescence and radical reactions in diffusion flames of alkali metals with organic halides, J. Chem. Phys., 1964, 40, 3701. [all data]


Notes

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