thorium


Gas phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Quantity Value Units Method Reference Comment
Δfgas602. ± 6.kJ/molReviewCox, Wagman, et al., 1984CODATA Review value
Quantity Value Units Method Reference Comment
gas,1 bar190.17 ± 0.05J/mol*KReviewCox, Wagman, et al., 1984CODATA Review value

Gas phase ion energetics data

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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 evaluated as indicated in comments:
L - Sharon G. Lias

Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to Th+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)6.308 ± 0.003eVN/AN/AL

Ionization energy determinations

IE (eV) Method Reference Comment
6.3067 ± 0.0002LSTrautmann, 1994LL
6.08EVALLide, 1992LL
6.310 ± 0.002LSJohnson, Fearey, et al., 1992LL
6.0 ± 0.3EILau and Hildenbrand, 1990LL
6.0 ± 0.3EILau, Brittain, et al., 1989LL
6.11 ± 0.02PELee and Potts, 1980LLK
6.9 ± 0.5EIGupta and Gingerich, 1980LLK
6.9 ± 0.5EIGingerich and Gupta, 1978LLK
6.08 ± 0.12EVALSugar, 1974LLK
6.0 ± 0.1EIRauh and Ackermann, 1974LLK
6.8EINeubert and Zmbov, 1974LLK
6.2 ± 0.2EIHildenbrand and Murad, 1974LLK
7.0 ± 0.5EIHildenbrand and Murad, 1974, 2LLK
6.08 ± 0.12SSugar, 1973LLK
5.9 ± 0.15EIAckermann and Rauh, 1973LLK
7.5 ± 0.3SISmith and Hertel, 1969RDSH
6.95 ± 0.06SIIonov and Mittsev, 1961RDSH

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A., CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]

Trautmann, 1994
Trautmann, N., Accurate determination of the first ionization potential of actinides by laser spectroscopy, J. Alloys Compd., 1994, 213/214, 28. [all data]

Lide, 1992
Lide, D.R. (Editor), Ionization potentials of atoms and atomic ions in Handbook of Chem. and Phys., 1992, 10-211. [all data]

Johnson, Fearey, et al., 1992
Johnson, S.G.; Fearey, B.L.; Miller, C.M.; Nogar, N.S., Resonance ionization mass spectrometry of thorium: Determination of the autoionization level structure and a re-determination of the ionization potential, Spectrochim. Acta Part B, 1992, 47, 633. [all data]

Lau and Hildenbrand, 1990
Lau, K.H.; Hildenbrand, D.L., High-temperature equilibrium studies of the gaseous thorium chlorides, J. Chem. Phys., 1990, 92, 6124. [all data]

Lau, Brittain, et al., 1989
Lau, K.H.; Brittain, R.D.; Hildenbrand, D.L., High temperature thermodynamic studies of some gaseous thorium fluorides, J. Chem. Phys., 1989, 90, 1158. [all data]

Lee and Potts, 1980
Lee, E.P.F.; Potts, A.W., The VUV photoelectron spectra of atomic In and Tl, J. Electron Spectrosc. Relat. Phenom., 1980, 19, 65. [all data]

Gupta and Gingerich, 1980
Gupta, S.K.; Gingerich, K.A., A thermodynamic study of the gaseous thorium carbides, ThC, ThC2, ThC3, ThC4, ThC5, and ThC6, J. Chem. Phys., 1980, 72, 2795. [all data]

Gingerich and Gupta, 1978
Gingerich, K.A.; Gupta, K.A., Dissociation energies of the molecules RhTh and RhU from high temperature mass spectrometry and predicted thermodynamic stabilities of selected diatomic actinide-platinum metal intermetallic molecules, J. Chem. Phys., 1978, 69, 505. [all data]

Sugar, 1974
Sugar, J., Revised ionization energies of the neutral actinides, J. Chem. Phys., 1974, 60, 4103. [all data]

Rauh and Ackermann, 1974
Rauh, E.G.; Ackermann, R.J., First ionization potentials of some refractory oxide vapors, J. Chem. Phys., 1974, 60, 1396. [all data]

Neubert and Zmbov, 1974
Neubert, A.; Zmbov, K.F., Mass spectrometric determination of the dissociation energy of the ThO molecule, High Temp. Sci., 1974, 6, 303. [all data]

Hildenbrand and Murad, 1974
Hildenbrand, D.L.; Murad, E., Ionization potential of thorium, J. Chem. Phys., 1974, 61, 5466. [all data]

Hildenbrand and Murad, 1974, 2
Hildenbrand, D.L.; Murad, E., Mass spectrometric studies of gaseous ThO and ThO2, J. Chem. Phys., 1974, 61, 1232. [all data]

Sugar, 1973
Sugar, J., Ionization energies of the neutral actinides, J. Chem. Phys., 1973, 59, 788. [all data]

Ackermann and Rauh, 1973
Ackermann, R.J.; Rauh, E.G., High temperature properties of the thorium-oxygen system: a revision of the thermodynamic properties of ThO(g) and ThO2(g), High Temp. Sci., 1973, 5, 463. [all data]

Smith and Hertel, 1969
Smith, D.H.; Hertel, G.R., First ionization potentials of Th, Np, and Pu by surface ionization, J. Chem. Phys., 1969, 51, 3105. [all data]

Ionov and Mittsev, 1961
Ionov, N.I.; Mittsev, M.A., Atomic first ionization potentials determined by the method of surface ionization, Zh. Eksperim. i Teor. Fiz. 1961,40,741 (Engl. Transl.: Soviet Phys. JETP, 1961, 13, 518). [all data]


Notes

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