Silicon tetrachloride

• Formula: Cl₄Si
• Molecular weight: 169.898
• IUPAC Standard InChI: InChI=1S/Cl4Si/c1-5(2,3)4 Copy

  
• IUPAC Standard InChIKey: FDNAPBUWERUEDA-UHFFFAOYSA-N Copy
• CAS Registry Number: 10026-04-7
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: Silane, tetrachloro-; Silicon chloride (SiCl4); Tetrachlorosilane; Tetrachlorosilicon; SiCl4; Silicon chloride; Silicon(IV) chloride; Chlorid kremicity; Extrema; Silicio(tetracloruro di); Siliciumtetrachlorid; Siliciumtetrachloride; Silicium(tetrachlorure de); Tetrachlorure de silicium; UN 1818; SIC-L(TM)
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• Information on this page:
  • Gas phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• Other data available:
  • Gas phase ion energetics data
  • Ion clustering data
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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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.

Gas Phase Heat Capacity (Shomate Equation)

C_p° = 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
    C_p = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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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.

Data compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

Antoine Equation Parameters

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

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Enthalpy of sublimation

Enthalpy of fusion

Reaction 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.

Data compiled by: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

 +  = ( • )

By formula: Cl^- + Cl₄Si = (Cl^- • Cl₄Si)

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

• SOLUTION (2% IN CCl4 FOR 700-500 CM^-1); PERKIN-ELMER 521 (GRATING); DIGITIZED BY NIST FROM HARD COPY; 2 cm^-1 resolution

Data compiled by: Tanya L. Myers, Russell G. Tonkyn, Ashley M. Oeck, Tyler O. Danby, John S. Loring, Matthew S. Taubman, Stephen W. Sharpe, Jerome C. Birnbaum, and Timothy J. Johnson

• liquid; Bruker Tensor 27 FTIR; 0.4821395 cm^-1 resolution

Mass spectrum (electron ionization)

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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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

Vibrational and/or electronic energy levels

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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 by: Takehiko Shimanouchi

Symmetry:   T_d     Symmetry Number σ = 12

Source: Shimanouchi, 1972

Notes

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, 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]

PCR Inc., 1990
PCR Inc., Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [all data]

Rugina, Gaspar, et al., 1987
Rugina, T.; Gaspar, M.; Sacarescu, L., Liquid-vapor equilibrium for a binary system of dichlorodimethyl-silane with trichloromethylsilane, chloromethylsilane and silicontetrachloride., Rev. Chim. (Bucharest), 1987, 38, 680. [all data]

Sauer and Hadsell, 1948
Sauer, R.O.; Hadsell, E.M., Azeotropes of Trimethylchlorosilane and Silicon Tetrachloride, J. Am. Chem. Soc., 1948, 70, 4258-9. [all data]

Anonymous, 1955
Anonymous, R., , Am. Pet. Inst. Res. Proj. 45, Tech. Rep. 14, No. 1, Ohio State Univ., 1955. [all data]

Parker and Robinson, 1927
Parker, T.W.; Robinson, P.L., Critical Temperatures of Boron Trichloride and Silicon Tetrachloride., J. Chem. Soc., 1927, 1927, 2977-81. [all data]

Jain and Yadav, 1973
Jain, D.V.S.; Yadav, O.P., Indian J. Chem., 1973, 11, 28. [all data]

Capková and Fried, 1964
Capková, A.; Fried, V., Gleichgewicht flüssigkeit-dampf im system tetrachlorsilan-trimethylchlorsilan, Collect. Czech. Chem. Commun., 1964, 29, 2, 336-340, https://doi.org/10.1135/cccc19640336 . [all data]

Jenkins and Chambers, 1954
Jenkins, Arthur C.; Chambers, George F., Vapor Pressures of Silicon Compounds, Ind. Eng. Chem., 1954, 46, 11, 2367-2369, https://doi.org/10.1021/ie50539a043 . [all data]

Kearby, 1936
Kearby, K., The Vapor Pressure of Silicon Tetrachloride, J. Am. Chem. Soc., 1936, 58, 2, 374-375, https://doi.org/10.1021/ja01293a503 . [all data]

Jain and Yadav, 1973, 2
Jain, D.V.S.; Yadav, O.P., Thermodynamics of n-Alkane Solutions: Part VIII - Vapour Pressures and Excess Free Energies for the SiCl₄/n-Hexane System, Indian J. Chem., 1973, 11, 28-30. [all data]

Balk and Dong, 1964
Balk, P.; Dong, D., The Vapor Pressures of Silicon Tetrachloride and Germanium Tetrachloride below Their Melting Points, J. Phys. Chem., 1964, 68, 4, 960-962, https://doi.org/10.1021/j100786a507 . [all data]

Devyatykh, Guesev, et al., 1985
Devyatykh, G.G.; Guesev, A.V.; Gibin, A.M.; Zhernenkov, N.V.; Zakharov, L.M.; Antipin, M.Yu.; Struchov, Yu.M.T., Russ. J. Inorg. Chem., 1985, 30, 780. [all data]

Hao, Kaspar, et al., 2005
Hao, C.T.; Kaspar, J.D.; Check, C.E.; Lobring, K.C.; Gilbert, T.M.; Sunderlin, L.S., Effect of substituents on the strength of A-Cl- (A = Si, Ge, and Sn) bonds in hypervalent systems: ACl(5)(-), ACl(4)F(-), and A(CH3)(3)Cl-2(-), J. Phys. Chem. A, 2005, 109, 9, 2026-2034, https://doi.org/10.1021/jp040743x . [all data]

Larson and McMahon, 1985
Larson, J.W.; McMahon, T.B., Fluoride and chloride affinities of the main group oxides, fluorides, oxofluorides, and alkyls. Quantitative scales of lewis acidities from ICR halide exchange equilibria, J. Am. Chem. Soc., 1985, 107, 766. [all data]

Shimanouchi, 1972
Shimanouchi, T., Tables of Molecular Vibrational Frequencies Consolidated Volume I, National Bureau of Standards, 1972, 1-160. [all data]

Notes

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• Symbols used in this document:
  

  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  Tboil	Boiling point
  Tc	Critical temperature
  Tfus	Fusion (melting) point
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔsubH	Enthalpy of sublimation
  ΔvapH	Enthalpy of vaporization

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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