Strontium monoxide


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
Δfgas-3.200kcal/molReviewChase, 1998Data last reviewed in December, 1972
Quantity Value Units Method Reference Comment
gas,1 bar54.983cal/mol*KReviewChase, 1998Data last reviewed in December, 1972

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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 5000. to 6000.
A 75.45674
B -23.35559
C 3.169193
D -0.152053
E -128.0712
F -163.3449
G 44.53274
H -3.200000
ReferenceChase, 1998
Comment Data last reviewed in December, 1972

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
Δfliquid-123.64kcal/molReviewChase, 1998Data last reviewed in December, 1972
Quantity Value Units Method Reference Comment
liquid,1 bar19.32cal/mol*KReviewChase, 1998Data last reviewed in December, 1972
Quantity Value Units Method Reference Comment
Δfsolid-141.50kcal/molReviewChase, 1998Data last reviewed in December, 1972
Quantity Value Units Method Reference Comment
solid13.25cal/mol*KReviewChase, 1998Data last reviewed in December, 1972

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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 2938. to 5000.
A 16.00000
B 2.773980×10-8
C -6.244652×10-9
D 4.854432×10-10
E 4.238672×10-8
F -132.6130
G 32.83970
H -123.6360
ReferenceChase, 1998
Comment Data last reviewed in December, 1972

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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. to 2938.
A 11.60400
B 2.090831
C -0.213663
D 0.027499
E -0.121368
F -145.4670
G 25.99161
H -141.5000
ReferenceChase, 1998
Comment Data last reviewed in December, 1972

Phase change 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.

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
2341. to 2683.4.78889937.521-1045.447Stull, 1947Coefficents calculated by NIST from author's data.

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
L - Sharon G. Lias

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

Quantity Value Units Method Reference Comment
IE (evaluated)6.6 ± 0.2eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)289.0kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity282.19kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
6.60 ± 0.18END/DERDalleska and Armentrout, 1994LL
6.4 ± 0.25EVALBelyaev, Gotkis, et al., 1990LL
6.60 ± 0.05PEDyke, Feher, et al., 1987LBLHLM
7.0 ± 0.15DERMurad, 1983LBLHLM
7.0 ± 0.2EIMurad, 1981LLK
7. ± 1.EIFarber and Srivastava, 1976LLK
6.1EIDrowart, Exsteen, et al., 1964RDSH
6.91 ± 0.02PEDyke, Feher, et al., 1987Vertical value; LBLHLM

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change 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]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [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]

Dalleska and Armentrout, 1994
Dalleska, N.F.; Armentrout, P.B., Guided ion beam studies of reactions of alkaline earth ions with O2, Int. J. Mass Spectrom. Ion Processes, 1994, 134, 203. [all data]

Belyaev, Gotkis, et al., 1990
Belyaev, V.N.; Gotkis, I.S.; Lebedeva, N.L.; Krasnov, K.S., Ionization potentials of MX molecules (M = Ca, Sr, Ba; X = F, Cl, Br, I, OH, O), Russ. J. Phys. Chem., 1990, 64, 773. [all data]

Dyke, Feher, et al., 1987
Dyke, J.M.; Feher, M.; Gravenor, B.W.J.; Morris, A., High-temperature photoelectron spectroscopy: A study of the alkaline earth oxides SrO and BaO, J. Phys. Chem., 1987, 91, 4476. [all data]

Murad, 1983
Murad, E., Abstraction reactions of Ca+ and Sr+ ions, J. Chem. Phys., 1983, 78, 6611. [all data]

Murad, 1981
Murad, E., Thermochemical properties of the gaseous alkaline earth monohydroxides, J. Chem. Phys., 1981, 75, 4080. [all data]

Farber and Srivastava, 1976
Farber, M.; Srivastava, R.D., The dissociation energies of calcium oxide and strontium oxide, High Temp. Sci., 1976, 8, 73. [all data]

Drowart, Exsteen, et al., 1964
Drowart, J.; Exsteen, G.; Verhaegen, G., Mass spectrometric determination of the dissociation energy of the molecules MgO, CaO, SrO and Sr2O, J. Chem. Soc. Faraday Trans., 1964, 60, 1920. [all data]


Notes

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