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Manganese monohydride


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 October, 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 55MnH
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
Complex rotational structure from 22600 to 24000 (max. 23360 - 23930) cm-1; in emission.
missing citation
Open but very strongly perturbed rotational structure in the region 21270 - 22580 cm-1; in emissionand absorption. Probably quintet transition.
missing citation; missing citation; Smith, 1973
Extremely complicated R shaded band with very dense structure centered around 20900 cm-1; in emission and absorption. Probably quintet system.
Heimer, 1936; missing citation; missing citation; Smith, 1973
Complex rotational structure from 11200 to 14500 cm-1; in emission.
missing citation
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
A 7Pi 17597 1 2 [1623] 3 (33)  6.425 4 5 0.187  [3.62E-4] 6  1.628 A lrarrow X V 17666 3
Heimer, 1936; missing citation; missing citation; Nevin, 1945; missing citation; Nevin and Stephens, 1953
X 7Sigma 0 1 1548.0 Z 28.8  5.6841 4 0.1570 7  [3.039E-4] 8  1.7311  
Hayes, McCarvill, et al., 1957; Kovacs and Scari, 1959; Kovacs and Pacher, 1975

Notes

1For and ab initio calculation of these two states see Bagus and Schaefer, 1973.
2A = 40.6 [see Kovacs and Pacher, 1975].
3From approximate origins for the F4 component.
4Approxiamte ("effective") constants. Improved ("true") constants for MnH (v=0) together with spin-orbit, spin-spin, spin-rotation interaction and l-uncoupling constants in Kovacs and Pacher, 1975. See also Kovacs, 1959, Pacher, 1974.
5Perturbations.
6D1 = 3.64E-4; H0 = 8.2E-9, H1 = 7.4E-9.
7gammae= -0.0019.
8D1 = 3.053E-4; D2 = 3.08E-4; H0 = 9.33E-9; H1 = 9.79E-9; H2 = 10.2E-9. Hv values in Pacher, 1974 differ by an order of magnitude.
9From the values for MnH.
10H0 = 1.2E-9.
11D1 = 8.22E-5; D2 = 8.36E-5; H0 = 1.41E-9; H1 = 2.17E-9, H2 = 2.93E-9.

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.

Smith, 1973
Smith, R.E., Diatomic hydride and deuteride spectra of the second row transition metals, Proc. R. Soc. London A, 1973, 332, 113. [all data]

Heimer, 1936
Heimer, T., Das bandenspektrum von MnH, Die Naturwissenschaften, 1936, 24, 521. [all data]

Nevin, 1945
Nevin, T.E., The spectrum of manganese hydride, MnH. II. The structure of the A7«PI» and X7«SIGMA» states, Proc. R. Ir. Acad. Sect. A:, 1945, 50, 123-137. [all data]

Nevin and Stephens, 1953
Nevin, T.E.; Stephens, D.V., New observations on the band spectra of MnH and MnD, Proc. R. Ir. Acad. Sect. A:, 1953, 55, 109-116. [all data]

Hayes, McCarvill, et al., 1957
Hayes, W.; McCarvill, P.D.; Nevin, T.E., The structure of the X7«SIGMA» state of MnH and MnD, Proc. Phys. Soc. London Sect. A, 1957, 70, 904. [all data]

Kovacs and Scari, 1959
Kovacs, I.; Scari, O., Intensity formulae for 7«PI» = 7«SIGMA» band, Acta Phys. Acad. Sci. Hung., 1959, 9, 423. [all data]

Kovacs and Pacher, 1975
Kovacs, I.; Pacher, P., Fine structure of 7«PI» and 7«SIGMA» states in diatomic molecules, J. Phys. B:, 1975, 8, 796. [all data]

Bagus and Schaefer, 1973
Bagus, P.S.; Schaefer, H.F., III, 7«SIGMA»+ and 7«PI» states of manganese hydride, J. Chem. Phys., 1973, 58, 1844. [all data]

Kovacs, 1959
Kovacs, J., On the structure of multiplet «SIGMA» states in diatomic molecules, Proc. R. Ir. Acad. Sect. A:, 1959, 60, 15-26. [all data]

Pacher, 1974
Pacher, P., Fine structure of septet states in diatomic molecules, the X7«SIGMA»+ state of MnH, Acta Phys. Acad. Sci. Hung., 1974, 35, 73. [all data]


Notes

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