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Br2+


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

Data collected through June, 1976

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 (79,81)Br2+
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
Highly excited X-ray states obtained in heavy ion collisions (Br+ + Br), discussed in Soff and Muller, 1974.
(2Sigmag+) (30700) 1           
A2 (2Piu)1/2 21602 2 152.0 0.35        A2 rarrow X2 18670
missing citation
Al (2Piu)3/2 19290 2 190.0 1.0        A1 rarrow X1 19197
missing citation
X2 2Pig1/2 2820 3 376.0 1.25         
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
X1 2Pig3/2 0           

Notes

1Third state observed in the photolectron spectrum Cornford, Frost, et al., 1971, Potts and Price, 1971.
2The energies of the two 2Piu components fit moderately well with two partially resolved peaks at ~12.8 and 13.1 eV in the photoelectron spectrum Cornford, Frost, et al., 1971, Potts and Price, 1971. The rather large difference between the omegae values in the two components raises some doubt in the correctness of the analysis.
3From the photoelectron spectrum Cornford, Frost, et al., 1971, Potts and Price, 1971.
4D00(Br2) + I.P.(Br)[-11.8l39 eV Tech, 1963]- I.P.(Br2).

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.

Soff and Muller, 1974
Soff, G.; Muller, B., Transition energies in the ionized Br+Br quasi-molecule, Lett. Nuovo Cimento, 1974, 9, 557. [all data]

Cornford, Frost, et al., 1971
Cornford, A.B.; Frost, D.C.; McDowell, C.A.; Ragle, J.L.; Stenhouse, I.A., Photoelectron spectra of the halogens, J. Chem. Phys., 1971, 54, 2651. [all data]

Potts and Price, 1971
Potts, A.W.; Price, W.C., Photoelectron spectra of the halogens and mixed halides ICI and lBr, J. Chem. Soc. Faraday Trans., 1971, 67, 1242. [all data]

Tech, 1963
Tech, J.L., Analysis of the spectrum of neutral atomic bromine (BrI), J. Res. Nat. Bur. Stand. Sect. A, 1963, 67, 505. [all data]


Notes

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