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DYb


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 January, 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 (174)YbD
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
F 1/2 4     [2.1289] 1   [4.24E-5]  [1.9943] F rarrow X 2 V 21986.20 3 Z
missing citation; Kopp and Hougen, 1967; Veseth, 1973
E (2Sigma+) 1/2 17768.6 968.65 Z 24.41  [2.1425] 5 6  [-8] 7  [1.9879] E rarrow X V 17806.16 3 Z
Hagland, Kopp, et al., 1966; Kopp and Hougen, 1967; Veseth, 1973
D (2Pi) 3/2 16778 [945.50] Z (15.6)  [2.09241] 8 0.0472  [3.962E-5] 9  2.0003 D rarrow X V 16822.18 3 Z
Hagland, Kopp, et al., 1966
D (2Pi) 1/2 15326.4 957.9 Z 9.7  2.122 10 0.039  [4.18E-5] 11  1.997 D rarrow X V 15362.3 3 Z
Hagland, Kopp, et al., 1966; Kopp, Hagland, et al., 1975
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
a 4Sigma+ 3/2 13008.5 1084.4 Z 9.84  2.3516 12 0.0371  3.40E-5 13 -0.09 1.8975 a rarrow X V 13107.60 3 Z
Hagland, 1969; missing citation
a 4Sigma+ 1/2     [2.1931] 14   [4.8E-5] 15  [1.9648] a rarrow X V 12493.15 3 Z
Kopp and Hougen, 1967; missing citation; Kopp, Hagland, et al., 1975
X 2Sigma+ 0 886.6 Z 10.57  2.01162 16 0.03425 -3.20E-4 [4.160E-5] 17  2.0516  

Notes

1Omega-type doubling, Delta nufe = -0.231(J+1/2) + .... Perturbations.
2One P, one R, and two Q branches.
3{J' = 0} relative to N" = 0.
4Veseth Veseth, 1973 suggests Omega = 3/2.
5Omega-type doubling, Delta nufe(v=0) = +6.989(J+1/2) - ... Hagland, Kopp, et al., 1966. Slightly different constants in Veseth, 1973. Perturbations.
6B1 = 2.104, B2 = 2.013.
7H0 = -34E-8. Additional Dv, Hv values in Hagland, Kopp, et al., 1966.
8Perturbations. Lambda-type doubling, Delta nufe(v=0) = +0.682E-4(J-1/2)(J+1/2)(J+3/2) - ...; for v=1 see Hagland, Kopp, et al., 1966.
9D1 = 6.0E-5; H0 = 5.0E-10, H1 = +4.9E-8.
10Omega-type doubling, Delta nufe(v=0) = -2.590(J+1/2) ... . Perturbations by levels of 4Sigma3/2+.
11D1(E-5 cm-1) = 3.80, D2(E-5 cm-1)= 3.36~: and higher order constants.
12Omega-type doubling, Delta nufe(v=0) = +0.003634~(J-1/2)(J+1/2)(J+3/2) - ... .
13Also higher order constants.
14Large Omega-type doubling, Delta nufe(v=0) = -9.051(J+1/2) + ...
15Also higher order constants.
16Spin splitting Delta v12(v=0) = +0.2876(N+1/2) - ... .
17D1 = 4.174E-5, He ~ +6.3E-10.

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.

Kopp and Hougen, 1967
Kopp, I.; Hougen, J.T., Rotational energy levels of 1/2 states and intensities in 1/2-1/2 transitions: applications to some heavier hydrides, Can. J. Phys., 1967, 45, 2581. [all data]

Veseth, 1973
Veseth, L., Hund's coupling case (c) in diatomic molecules. II. Examples, J. Phys. B:, 1973, 6, 1484. [all data]

Hagland, Kopp, et al., 1966
Hagland, L.; Kopp, I.; Aslund, N., On the band spectra of YbH and YbD, Ark. Fys., 1966, 32, 321. [all data]

Kopp, Hagland, et al., 1975
Kopp; Hagland; Rydh, University of Stockholm, Institute of Physics. Reports, Rpt. 75-15, 1975, 1. [all data]

Hagland, 1969
Hagland, L., Thesis, quoted in Rosen, 1970, Stockholm, 1969, 1. [all data]

Rosen, 1970
Rosen, B., International tables of selected constants. 17. Spectroscopic data relative to diatomic molecules, Pub. Pergamon Press, Oxford, 1970, 0. [all data]


Notes

Go To: Top, Constants of diatomic molecules, References