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Carbon monophosphide


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, 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 12C31P
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
B 2Sigma+ 29100.4 836.32 H 5.917  0.6829 1 2 0.00628  0.00000182  1.6894 B rarrow A R 21934.3 H
missing citation
           B rarrow A R 22092.6 H
missing citation
           B rarrow X 3 R 28898.9 H
missing citation
A 2Pii 7053.2 1061.99 HQ 6.035  0.7135 4 0.0058 4  0.0000013  1.653  
6894.9 1061.99 HQ 6.035  0.7135 4 0.0058 4  0.0000013  1.653  
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
X 2Sigma+ 0 1239.67 H 6.86  0.7986 5 2 0.00597  0.00000133  1.5622  

Notes

1Spin-splitting constant gamma = (-)0.006.
2RKR potential curves Thakur and Singh, 1967.
3Morse-potential Franck-Condon factors Wentink and Spindler, 1970.
4Recalculated from head-head separations in the B-A system. Similar calculations by Barwald, Herzberg, et al., 1934 gave Be = 0.698, alphae = 0.0077. The rotational analysis of the B-A, 0-0 band Chaudhry and Upadhya, 1969 yields B0 = 0.7101.
5Spin-splitting constant gamma = (+) 0.017.
6Thermochemical value (mass-spectrom.) Gingerich, 1971, Smoes, Myers, et al., 1971, Kordis and Gingerich, 1973.

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.

Thakur and Singh, 1967
Thakur, S.N.; Singh, R.B., Potential curves and bond strength of CP, BeO and MgO, J. Sci. Res. Banaras Hindu Univ., 1967, 18, 1, 253-264. [all data]

Wentink and Spindler, 1970
Wentink, T., Jr.; Spindler, R.J., Jr., Franck-Condon Factors and r-centroids for No+, CP, SiF, BF, BCl, and BBr, J. Quant. Spectrosc. Radiat. Transfer, 1970, 10, 609. [all data]

Barwald, Herzberg, et al., 1934
Barwald, H.; Herzberg, G.; Herzberg, L., Bandenspektrum und struktur des CP-molekuls, Ann. Phys. (Neue Folge), 1934, 20, 569. [all data]

Chaudhry and Upadhya, 1969
Chaudhry, A.K.; Upadhya, K.N., 2«SIGMA»+-2«PI» band system in CP molecule, Indian J. Phys., 1969, 43, 83. [all data]

Gingerich, 1971
Gingerich, K.A., Gaseous phosphorus compounds. Part V. The dissociation energy and heat of formation of carbon monophosphide, Thermochim. Acta, 1971, 2, 233. [all data]

Smoes, Myers, et al., 1971
Smoes, S.; Myers, C.E.; Drowart, J., Determination of the atomization energies of CP, C2P, CP2 and C2P2 by high temperature Knudsen cell mass spectrometry, Chem. Phys. Lett., 1971, 8, 10. [all data]

Kordis and Gingerich, 1973
Kordis, J.; Gingerich, K.A., Gaseous phosphorus compounds. IX. Mass spectrometric studies of equilibria in the carbon-phosporus system, J. Chem. Phys., 1973, 58, 5058. [all data]


Notes

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