disodium oxide


Condensed phase thermochemistry data

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

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
Δfliquid-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
Δfsolid-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.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K) 1405.2 to 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.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K) 298. to 1023.1023. to 1243.1243. to 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

Go To: Top, Condensed 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
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

Go To: Top, Condensed 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]

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

Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics data, References