Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

DLa


Constants of diatomic molecules

Go To: Top, References, Notes

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 September, 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 139LaD
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
b 3Phi4     [1.9743] 1 0.0331  [0.35E-4]  [2.0738] b rarrow a 16359.92 Z
b 3Phi3     [1.9691] 1 0.0403  [0.42E-4]  [2.0766] b rarrow a 16010.97 Z
missing citation
b 3Phi2 
a 3Delta3     [1.9523] 0.0274  [0.31E-4]  [2.0855]  
a 3Delta2     [1.9510] 0.0282  [0.34E-4]  [2.0862]  
a 3Delta1 
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
B 1Delta     [1.9261] 1   [0.57E-4]  [2.0996] B rarrow A 15611.92 Z
missing citation
A 1Pi     [1.9346] 2   [0.35E-4]  [2.0950]  

Notes

1Emission breaks off at relatively low J' values.
2Lambda-type doubling, Deltav = 0.00115J(J+1).
3Lambda-type doubling, Deltav = 0.0023J(J+1).

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.

No reference data available.


Notes

Go To: Top, Constants of diatomic molecules, References