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disodium oxide


Condensed 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
Deltafliquid-372.84kJ/molReviewChase, 1998Data last reviewed in June, 1968
Quantity Value Units Method Reference Comment
liquid,1 bar91.61J/mol*KReviewChase, 1998Data last reviewed in June, 1968
Quantity Value Units Method Reference Comment
Deltafsolid-417.98kJ/molReviewChase, 1998Data last reviewed in June, 1968
Quantity Value Units Method Reference Comment
solid75.04J/mol*KReviewChase, 1998Data last reviewed in June, 1968

Liquid 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) 1405.2 - 3000.
A 104.6000
B 9.909135×10-10
C -6.022074×10-10
D 1.113058×10-10
E 2.362827×10-11
F -404.0296
G 218.1902
H -372.8434
ReferenceChase, 1998
Comment Data last reviewed in June, 1968

Solid 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) 298. - 1023.1023. - 1243.1243. - 1405.
A 25.57540-125.77302240.950
B 177.7100302.0740-3209.970
C -166.3350-140.64201803.690
D 57.6116021.32400-359.0730
E 0.33814938.28310-386.2480
F -431.0160-301.6530-1877.630
G 61.79400-42.667002421.660
H -417.9820-417.9820-417.9820
ReferenceChase, 1998Chase, 1998Chase, 1998
Comment Data last reviewed in June, 1968 Data last reviewed in June, 1968 Data last reviewed in June, 1968

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:
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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Quantity Value Units Method Reference Comment
Proton affinity (review)1375.9kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity1345.2kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
5.35SButman, Kudin, et al., 1984LBLHLM
5.1 ± 0.1PIPeterson, Dao, et al., 1983LBLHLM
5.5 ± 0.5EIHildenbrand and Murad, 1970RDSH

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.

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]

Butman, Kudin, et al., 1984
Butman, M.F.; Kudin, L.S.; Krasnov, K.S., The Mass-spectrometric determination of the proton affinity of the molecules M2O (M = Na, K, Rb, Cs), Russ. J. Inorg. Chem., 1984, 29, 1228, In original 2150. [all data]

Peterson, Dao, et al., 1983
Peterson, K.I.; Dao, P.D.; Castleman, A.W., Jr., Photoionization studies of Na2Cl and Na2O and reactions of metal clusters, J. Chem. Phys., 1983, 79, 777. [all data]

Hildenbrand and Murad, 1970
Hildenbrand, D.L.; Murad, E., Dissociation energy of NaO(g) and the heat of atomization of Na2O(g), J. Chem. Phys., 1970, 53, 3403. [all data]


Notes

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