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BiI


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 May, 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 209Bi127I
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
C 40707.1 230.9 H 4.75        C larrow X 40739.5 H
Joshi, 1958; Yamdagni, 1970
Unclassified absorption bands in the region 24100 - 25000 cm-1.
Yamdagni, 1970
B 23389.1 198.09 H 1.444 1        (B rarrow a) 2 R 17213.5 H
Rao, 1949; missing citation
           B lrarrow X R 23405.9 H
Morgan, 1936; Rao, 1949; missing citation
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
A' 20318.7 126.8 H 0.90        A' larrow X R 20300.0 H
Yamdagni, 1970
20006.0 145.0 H 2.50        A larrow X R 19996.0 H
Yamdagni, 1970
a (6190) 170.8 H 0.3         
X 0+ 0 163.88 H 0.280 3 -0.005 .027222814 6.97906E-5 4  2.9959E-9 5  2.800501 6  
Kuijpers, Torring, et al., 1976

Notes

1Also higher order constants.
2It is not certain that the upper state of this system (omega'e= 200.6, omega'ex'e'= 1.4) is identical with the B state observed in absorption and emission.
3missing note
4+1.721E-8(v+1/2)2 - 9.9E-11(v+1/2)3.
5missing note
6Microwave sp.

References

Go To: Top, Constants of diatomic molecules, Notes

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

Joshi, 1958
Joshi, M.M., Thesis, Allahabad University, 1958, 0. [all data]

Yamdagni, 1970
Yamdagni, R., A-X and A'-X band systems of BiI molecule, Spectrochim. Acta, 1970, 26, 1071. [all data]

Rao, 1949
Rao, P.T., The emission spectrum of bismuth iodide, Indian J. Phys., 1949, 23, 379. [all data]

Morgan, 1936
Morgan, F., Band spectra of BiBr, BiCl, BiF, and BiI in absorption, Phys. Rev., 1936, 49, 41. [all data]

Kuijpers, Torring, et al., 1976
Kuijpers, P.; Torring, T.; Dymanus, A., Microwave spectrum of bismuth iodide (BiI), Chem. Phys., 1976, 12, 309. [all data]


Notes

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