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Barium monochloride


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 February, 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 138Ba35Cl
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
G (2Sigma) 32511.4 331.3 1.29        G larrow X V 32537.3
Harrington, 1942
F (2Sigma) 29493.6 331.8 H 1.3        F larrow X V 29519.7 H
Harrington, 1942
E 2Sigma+ 27064.8 311.5 H 0.93        E lrarrow X V 27080.9 H
missing citation; Harrington, 1942
D 2Sigma+ 25471.6 304.6 H 1.04        D lrarrow X V 25484.2 H
missing citation; Harrington, 1942
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
C 2Pi 19450.1 285.0 HQ 0.79        C lrarrow X 1 RV 19453 HQ
missing citation; Harrington, 1942
19062.9 280.2 HQ 0.79        C lrarrow X 1 RV 19063.4 HQ
missing citation; Harrington, 1942
B (2Sigma+) 11880 255.25 H 0.83        B lrarrow X R 11868 H
Barrow and Crawford, 1946; Bradford, Jones, et al., 1975
A (2Pi) 10995.3 256.35 H 0.73        A lrarrow X R 10983.9 H
Barrow and Crawford, 1946; Bradford, Jones, et al., 1975
10363 256.35 H 0.73        A lrarrow X R 10351.1 H
Rosen, 1970; Bradford, Jones, et al., 1975
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
X 2Sigma+ 0 279.3 H 0.89         

Notes

1Radiative lifetimes Dagdigian, Cruse, et al., 1974 for the upper and the lower component of C 2Pi(v=0) are 16.6 and 17.5 ns, respectively. Capelle, Bradford, et al., 1973 give tau = 22 ns.
2Thermochemical value (mass-spectrom.) Zmbov, 1969, Hildenbrand, 1970. In agreement with a theoretical lower limit Krasnov and Karaseva, 1965 of 4.35 eV. Flame photometry gives D00= 4.63 eV Gurvich, Ryabova, et al., 1973, Ryabova, Khitrov, et al., 1972. A higher value, D00 geq 4.77 eV Jonah and Zare, 1971, was estimated from the short-wavelength limit of the BaCl chemiluminescence spectrum.

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.

Harrington, 1942
Harrington, Dissertation, University of California, California, 1942, 0. [all data]

Barrow and Crawford, 1946
Barrow, R.F.; Crawford, D.V., A new electronic band-system of BaCl, Nature (London), 1946, 157, 339. [all data]

Bradford, Jones, et al., 1975
Bradford, R.S., Jr.; Jones, C.R.; Southall, L.A.; Broida, H.P., Production efficiencies of electronically excited states of barium monohalides, J. Chem. Phys., 1975, 62, 2060. [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]

Dagdigian, Cruse, et al., 1974
Dagdigian, P.J.; Cruse, H.W.; Zare, R.N., Radiative lifetimes of the alkaline earth monohalides, J. Chem. Phys., 1974, 60, 2330. [all data]

Capelle, Bradford, et al., 1973
Capelle, G.A.; Bradford, R.S.; Broida, H.P., Chemiluminescence and laser photoluminescence of some diatomic metal halides, Chem. Phys. Lett., 1973, 21, 418. [all data]

Zmbov, 1969
Zmbov, K.F., Mass spectrometric determination of the dissociation energies of calcium and barium chlorides, Chem. Phys. Lett., 1969, 4, 191. [all data]

Hildenbrand, 1970
Hildenbrand, D.L., Dissociation energies and chemical bonding in the alkaline-earth chlorides from mass spectrometric studies, J. Chem. Phys., 1970, 52, 5751. [all data]

Krasnov and Karaseva, 1965
Krasnov, K.S.; Karaseva, N.V., Reevaluation of the spectroscopic dissociation energies of subhalides of the IIa group, Opt. Spectrosc. Engl. Transl., 1965, 19, 14, In original 30. [all data]

Gurvich, Ryabova, et al., 1973
Gurvich, L.V.; Ryabova, V.G.; Khitrov, A.N., Determination of dissociation energies of alkaline-earth chlorides, bromides and hydroxides by flame photometry, Faraday Symp. Chem. Soc., 1973, 8, 83. [all data]

Ryabova, Khitrov, et al., 1972
Ryabova, V.G.; Khitrov, A.N.; Gurvich, L.V., Spectrophotometric determination of the dissociation energies of molecules. III. CaCl, CaCl2, CaOH, CaOHCl, BaCl, BaCl2, BaOH, BaOHCl, High Temp. Engl. Transl., 1972, 10, 669, In original 744. [all data]

Jonah and Zare, 1971
Jonah, C.D.; Zare, R.N., Formation of group IIA dihalides by two-body radiative association, Chem. Phys. Lett., 1971, 9, 65. [all data]


Notes

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