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HYb


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)YbH
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
F 1/2 3     [4.155] 1   16.6E-5  2.012 F lrarrow X V 22002.39 2 Z
Hagland, Kopp, et al., 1966; Veseth, 1973
E (2Sigma+) 1/2     [4.2497] 4   19.7E-5  [1.9897] E lrarrow X V 17822.56 2 Z
missing citation; Kopp and Hougen, 1967; Veseth, 1973
D (2Pi) 3/2 16780 [1319.7] Z (19.4)  4.1609 5 0.0886  [14.68E-5] 6  2.0108 D lrarrow X V 16834.72 2 Z
Kopp, 1962; Hagland, Kopp, et al., 1966
D (2Pi) 1/2 15325.6 [1307.54] Z 21.02 7  4.1950 8 0.0898 7  [15.33E-5] 9  2.0026 D lrarrow X V 15375.58 $dZ
Kopp, 1962; missing citation; Kopp and Hougen, 1967; Veseth, 1973
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
C (Omega > 1/2) leq 15200 geq 1500 10 (30)  (4.4) 10       
Hagland, Kopp, et al., 1966
B (1/2) leq 15400 geq 1370 11   (3.2) 11       
Hagland, Kopp, et al., 1966; Hagland and Kopp, 1969
a 4Sigma3/2+     [4.6723] 12   [7.1E-5] 13  [1.8976] a rarrow X 13183.92 2 Z
Hagland, 1969; Kopp, Hagland, et al., 1975
a 4Sigma1/2+           a rarrow X 
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
X 2Sigma+ 0 1249.54 Z 21.06  3.99305 14 0.09565 -1.08E-3 16.18E-5 15 1.8E-6 2.0526  

Notes

1Omega-type doubling, Delta nufe = -0.23(J+1/2) + ... Hagland, Kopp, et al., 1966. Different constants in Veseth, 1973. Perturbations.
2{J' = 0} relative to N" = 0.
3Veseth Veseth, 1973 suggests Omega = 3/2 Veseth, 1973.
4Large Omega-type doubling, Delta nufe = +13.60(J+1/2) - ... . f levels perturbed by v=2 of D 1/2 Veseth, 1973.
5Perturbations. Omega-type doubling, Delta nufe(v=0) = 5.19E-4(J-1/2)(J+1/2)(J+3/2) - ...
6D1 = 16.5E-5; H1 = 2.8E-8.
7Data for v=2 (B = 3.958) from a perturbation in the f levels of E, v=0. See Veseth, 1973.
8Omega-type doubling, Delta nufe(v=0) = -4.89(J+1/2) + ... Perturbations. An accidental predissociation occurs in v=0 near the intersection with a level of B (1/2).
9D1 = 15.7E-5.
10From perturbations in the 1/2 and 3/2 components of D. Vibrational numbering unknown.
11From perturbations in the e levels of D 1/2, v=0 and 1. Vibrational numbering unknown.
12Omega-type doubling, Delta nufe = +0.02858~(J-1/2)(J+1/2)(J+3/2) -...
13Also higher order constants.
14Spin splitting Delta v12(v=0)= 0.5688(N+1/2) - ...
15H0 = +4.02E-9; H1 = 4.39E-9, H2 = 4.6E-9.
16From the predissociation in D 1/2 (v=0). The fact that a 4Sigma1/2 was not observed for Yb1H may be due to predissociation; in this case D00 ~leq 1.55 eV.

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.

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]

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

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]

Kopp, 1962
Kopp, I., Rotationsanalyse eines Bandensystemes von YbH, Die Naturwissenschaften, 1962, 49, 202. [all data]

Hagland and Kopp, 1969
Hagland, L.; Kopp, I., On the spectra of YbH and YbD in the infrared region, Ark. Fys., 1969, 39, 257. [all data]

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

Kopp, Hagland, et al., 1975
Kopp; Hagland; Rydh, University of Stockholm, Institute of Physics. Reports, Rpt. 75-15, 1975, 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

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