Silicon dicarbide


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
Δfgas147.00kcal/molReviewChase, 1998Data last reviewed in March, 1967
Quantity Value Units Method Reference Comment
gas,1 bar56.580cal/mol*KReviewChase, 1998Data last reviewed in March, 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 1300.1300. to 6000.
A 8.60097117.31390
B 10.68550-3.228320
C -7.2249811.256401
D 1.796591-0.114678
E -0.025909-1.241170
F 143.9340138.5860
G 63.9623173.63979
H 147.0000147.0000
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in March, 1967 Data last reviewed in March, 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 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
B - John E. Bartmess

Electron affinity determinations

EA (eV) Method Reference Comment
1.37 ± 0.10LPESNakajima, Taguwa, et al., 1995Vertical Detachment Energy: 1.54±0.06 eV; B

Ionization energy determinations

IE (eV) Method Reference Comment
10.1 ± 0.5EIStearns and Kohl, 1973LLK
10.3 ± 0.5EIGuido and Gigli, 1973LLK
10.2 ± 0.3EIDrowart, DeMaria, et al., 1958RDSH

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]

Nakajima, Taguwa, et al., 1995
Nakajima, A.; Taguwa, T.; Nakao, K.; Gomei, M.; Kishi, R.; Iwata, S.; Kaya, K., Photoelectron Spectroscopy of silicon-carbon cluster Anions (SinCm-), J. Chem. Phys., 1995, 103, 6, 2050, https://doi.org/10.1063/1.469731 . [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]

Guido and Gigli, 1973
Guido, M.; Gigli, G., Mass spectrometric study of the CeSiC molecules, J. Chem. Phys., 1973, 59, 3437. [all data]

Drowart, DeMaria, et al., 1958
Drowart, J.; DeMaria, G.; Inghram, M.G., Thermodynamic study of SiC utilizing a mass spectrometer, J. Chem. Phys., 1958, 29, 1015. [all data]


Notes

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