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Lead iodide


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 July, 1977

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 (208)Pb127I
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
B (2Sigma) 33488.0 198.7 H 0.35 1        B larrow X V 33507.1 2 H
missing citation
A (1/2) 20529.0 142.0 2 H 1.50        A lrarrow X R 20519.4 H
missing citation
X (2Pi1/2) 0 160.5 H 0.25         

Notes

1Diffuse bands (prediss.)
2Vibrational numbering uncertain.
3See the discussion in Wieland and Newburgh, 1952.

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.

Wieland and Newburgh, 1952
Wieland, K.; Newburgh, R., Uber einige neue Bandenspektren der Radikale PbCl, PbBr und PbJ, Helv. Phys. Acta, 1952, 25, 87. [all data]


Notes

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