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ruthenium carbide


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 May, 1975

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 102Ru12C
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
For the following states, the first line displays constants for the upper state, e.g. omega' and the second line diplays constants for the lower state, e.g. omega".
XI 2     0.5133   9.7E-7  1.749 larrow R 23802.00 1 Z
Scullman and Thelin, 1972
XI     [0.5875]   [7.5E-7]  [1.635] larrow R 23802.00 1 Z
Scullman and Thelin, 1972
23299 [743.25] Z   0.5234 0.0069  [9.5E-7] 3  1.7321 4 larrow 4 4 R 23152.00 Z
Scullman, 1971; missing citation
23299 1038.8 Z 4.64  0.5878 00.0036  8.3E-7  1.6344 4 larrow 4 4 R 23152.00 Z
Scullman, 1971; missing citation
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
IX 22925 [775.25] 5 H   [0.5273] 0.0077 5  [10E-7]  [1.7256] larrow R 22803.25 Z
Scullman, 1971; Scullman and Thelin, 1972
22925 [1018] H   [0.5885]   [7.5E-7]  [1.633] larrow R 22803.25 Z
Scullman, 1971; Scullman and Thelin, 1972
VIII 6     [0.5637]   [9.6E-7]  [1.6690] rarrow R 15344.82 Z
Scullman and Thelin, 1971
     [0.5882]   [8.9E-7]  [1.6339] rarrow R 15344.82 Z
Scullman and Thelin, 1971
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
VII 13862.64 954.56 Z 5.39  0.5702 0.0043  9.0E-7 -3E-8 1.6595 4 lrarrow 3 R 13820.19 Z
missing citation; Scullman and Thelin, 1972
13862.64 1039.14 Z 4.75  0.5882 0.0040  7.7E-7  1.6339 4 lrarrow 3 R 13820.19 Z
missing citation; Scullman and Thelin, 1972
13353 [962] H   [0.5701]   [10.2E-7]  [1.6596] rarrow R 13312.69 Z
Scullman and Thelin, 1971
13353 [1043] H   [0.5887]   [9.6E-7]  [1.6332] rarrow R 13312.69 Z
Scullman and Thelin, 1971
13328 [949]   [0.5697]   [9.6E-7]  [1.660] rarrow R 13286.43 Z
Scullman and Thelin, 1971
13328 [1032]   [0.5882]   [8.6E-7]  [1.6339] rarrow R 13286.43 Z
Scullman and Thelin, 1971
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
IV 13138 960 H 3  [0.5698]   [8.4E-7]  [1.6600] 2 rarrow 1 R 13094.87 Z
Scullman and Thelin, 1971
13138 1048 H 5.5  [0.5879] 7   [8.1E-7]  [1.6343] 2 rarrow 1 R 13094.87 Z
Scullman and Thelin, 1971
III 12913 [944] H   [0.5691]   [9.4E-7]  [1.6611] rarrow R 12875.23 Z
Scullman and Thelin, 1971
12913 [1020] H   [0.5882]   [9.0E-7]  [1.6339] rarrow R 12875.23 Z
Scullman and Thelin, 1971
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
II 6     [0.5710]   [9.1E-7]  [1.6583] (2) rarrow (3) R 12658.26 Z
Scullman and Thelin, 1971
     [0.5864]   [7.8E-7]  [1.6364] (2) rarrow (3) R 12658.26 Z
Scullman and Thelin, 1971
I 12664 (950) H   [0.5653]   [7.5E-7]  [1.6666] rarrow R 12624.28 Z
Scullman and Thelin, 1971
12664 (1030) H   [0.5870]   [6.6E-7]  [1.6355] rarrow R 12624.28 Z
Scullman and Thelin, 1971

Notes

1Only 1-0 band analyzed.
2Constants for v=1:
3D1 = 8.0E-7.
4It is possible that the lower state of system X is identical with that of system VII. In this case, Omega' = Omega" = 3.
5Assignment of 1-0 band not certain. Lower state constants for this band are B0" = 0.5869, D0" = 7.0E-7.
60-0 sequence only.
7The Omega-type doubling in the 0-0 band, Deltanu ~0.000103~J(J+1), is believed to arise in the lower state.
8Thermochemical value (mass-spectrometry) McIntyre, Auwera-Mahieu, et al., 1968, revised Auwera-Mahieu, Peeters, et al., 1970, Gingerich, 1974.
9Perturbations.

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.

Scullman and Thelin, 1972
Scullman, R.; Thelin, B., The spectrum of RuC in the region 4100-4800 Å, Phys. Scr., 1972, 5, 201. [all data]

Scullman, 1971
Scullman, Dissertation, see USIP Report 71-02, Stockholm, 1971, 1. [all data]

Scullman and Thelin, 1971
Scullman, R.; Thelin, B., The spectrum of RuC in the region 6000-8700 Å, Phys. Scr., 1971, 3, 19-34. [all data]

McIntyre, Auwera-Mahieu, et al., 1968
McIntyre, N.S.; Auwera-Mahieu, A.V.; Drowart, J., Mass spectrometric determination of the dissociation energies of gaseous RuC, IrC and PtB, J. Chem. Soc. Faraday Trans., 1968, 64, 3006. [all data]

Auwera-Mahieu, Peeters, et al., 1970
Auwera-Mahieu, A.V.; Peeters, R.; McIntyre, N.S.; Drowart, J., Mass spectrometric determination of dissociation energies of the borides and suicides of some transition metals, J. Chem. Soc. Faraday Trans., 1970, 66, 809. [all data]

Gingerich, 1974
Gingerich, K.A., Thermodynamic evidence for quadruple bond formation in the molecule ThRu and possible maximum bond energy between ligand-free metal atoms, Chem. Phys. Lett., 1974, 25, 523. [all data]


Notes

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