silicon monoxide

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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-24.001kcal/molReviewChase, 1998Data last reviewed in September, 1967
Quantity Value Units Method Reference Comment
gas,1 bar50.569cal/mol*KReviewChase, 1998Data last reviewed in September, 1967

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) 298. to 1100.1100. to 6000.
A 4.6663808.532250
B 8.9540400.413779
C -7.293990-0.121737
D 2.1735310.014198
E 0.035596-0.298292
F -25.60980-27.39051
G 54.0512959.55810
H -24.00000-24.00000
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in September, 1967 Data last reviewed in September, 1967

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:
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)11.49 ± 0.20eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)185.9kcal/molN/AHunter and Lias, 1998at O; HL
Proton affinity (review)127.kcal/molN/AHunter and Lias, 1998at Si; HL
Quantity Value Units Method Reference Comment
Gas basicity179.3kcal/molN/AHunter and Lias, 1998at O; HL
Gas basicity119.6kcal/molN/AHunter and Lias, 1998at Si; HL

Ionization energy determinations

IE (eV) Method Reference Comment
11.3 ± 0.2EINakagawa, Asano, et al., 1981LLK
11.43EVALHuber and Herzberg, 1979LLK
10.2 ± 0.5EIThompson, 1973LLK
11.3 ± 0.3EIStearns and Kohl, 1973LLK
11.3 ± 0.5EIMuenow, 1973LLK
11.5 ± 0.3EIHildenbrand, 1972LLK
11.58 ± 0.10EIHildenbrand, 1971LLK
11.6 ± 0.2EIHildenbrand and Murad, 1969RDSH
~11.67SHildenbrand and Murad, 1969RDSH

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]

Nakagawa, Asano, et al., 1981
Nakagawa, H.; Asano, M.; Kubo, K., Mass spectrometric study of the vaporization of lithium metasilicate, J. Nucl. Mater., 1981, 102, 292. [all data]

Huber and Herzberg, 1979
Huber, K.P.; Herzberg, G., Molecular Spectra and Molecular Structure. IV. Constants of Diatomic Molecules,, Van Nostrand Reinhold Co., 1979, ,1. [all data]

Thompson, 1973
Thompson, K.R., Mass spectrometric determination of the atomization energies of AlSiO(g) and Al2O(g), High Temp. Sci., 1973, 5, 62. [all data]

Stearns and Kohl, 1973
Stearns, C.A.; Kohl, F.J., Mass spectrometric determination of the dissociation energies of gaseous Al2, AlSi, and AlSiO, High Temp. Sci., 1973, 5, 113. [all data]

Muenow, 1973
Muenow, D.W., Mass spectrometric evidence for the gaseous silicon oxide nitride molecule and its heat of atomizaton, J. Phys. Chem., 1973, 77, 970. [all data]

Hildenbrand, 1972
Hildenbrand, D.L., The gaseous equilibrium Ge + SiO = GeO + Si and the dissociation energy of SiO, High Temp. Sci., 1972, 4, 244. [all data]

Hildenbrand, 1971
Hildenbrand, D.L., First ionization potentials of the molecules BF, SiO and GeO, Intern. J. Mass Spectrom. Ion Phys., 1971, 7, 255. [all data]

Hildenbrand and Murad, 1969
Hildenbrand, D.L.; Murad, E., Dissociation energy and ionization potential of silicon monoxide, J. Chem. Phys., 1969, 51, 807. [all data]


Notes

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