iron oxide


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
Δfgas251.04kJ/molReviewChase, 1998Data last reviewed in June, 1965
Quantity Value Units Method Reference Comment
gas,1 bar241.92J/mol*KReviewChase, 1998Data last reviewed in June, 1965

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 5000. to 6000.
A 36.19457
B -0.101054
C 0.648056
D -0.070287
E 0.238204
F 239.4708
G 283.5229
H 251.0404
ReferenceChase, 1998
Comment Data last reviewed in June, 1965

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, References, Notes

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:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
B - John E. Bartmess

View reactions leading to FeO+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
Proton affinity (review)907.kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity880.5kJ/molN/AHunter and Lias, 1998HL

Electron affinity determinations

EA (eV) Method Reference Comment
1.49450 ± 0.00022ZEKEDrechsler, Boesl, et al., 1997B
1.492 ± 0.020LPESEngelking and Lineberger, 1977B
1.500 ± 0.040LPESWu, Desai, et al., 1996B
1.49303LPESAnderson, Lykke, et al., 1987B

Ionization energy determinations

IE (eV) Method Reference Comment
8.9 ± 0.16ENDArmentrout, Halle, et al., 1982LBLHLM
8.71 ± 0.10EIHildenbrand, 1975LLK
8. ± 1.EIBalducci, DeMaria, et al., 1971LLK

References

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Notes

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

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Drechsler, Boesl, et al., 1997
Drechsler, G.; Boesl, U.; Bassmann, C.; Schlag, E.W., Mass selected anion-zero kinetic energy photoelectron spectroscopy (anion-ZEKE): Ground and low excited states of FeO, J. Chem. Phys., 1997, 107, 7, 2284-2291, https://doi.org/10.1063/1.474622 . [all data]

Engelking and Lineberger, 1977
Engelking, P.C.; Lineberger, W.C., Laser photoelecton spectrometry of FeO-: Electron affinity, electronic state separations, and ground state vibrations of iron oxide, and a new ground state assignment, J. Chem. Phys., 1977, 66, 5054. [all data]

Wu, Desai, et al., 1996
Wu, H.; Desai, R.; Wang, L.-S., Observation and Photoelectron Spectroscopic Study of Novel Mono- and Di-iron Oxide Molecules: FeOy- (y=1-4) and Fe2Oy- (y=1-5), J. Am. Chem. Soc., 1996, 118, 22, 5296, https://doi.org/10.1021/ja954153b . [all data]

Anderson, Lykke, et al., 1987
Anderson, T.; Lykke, K.R.; Neumark, D.M.; Lineberger, W.C., Autodetachment Study of the Electronic Spectroscopy of FeO-, J. Chem. Phys., 1987, 86, 4, 1858, https://doi.org/10.1063/1.452137 . [all data]

Armentrout, Halle, et al., 1982
Armentrout, P.B.; Halle, L.F.; Beauchamp, J.L., Reaction of Cr+, Mn+, Fe+, Co+, and Ni+ with O2 and N2O. Examination of the translational energy dependence of the cross sections of endothermic reactions, J. Chem. Phys., 1982, 76, 2449. [all data]

Hildenbrand, 1975
Hildenbrand, D.L., Thermochemistry of molecular FeO, FeO+ and FeO2, Chem. Phys. Lett., 1975, 34, 352. [all data]

Balducci, DeMaria, et al., 1971
Balducci, G.; DeMaria, G.; Guido, M.; Piacente, V., Dissociation energy of FeO, J. Chem. Phys., 1971, 55, 2596. [all data]


Notes

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