Silane, tetraphenyl-

• Formula: C₂₄H₂₀Si
• Molecular weight: 336.5011
• IUPAC Standard InChI: InChI=1S/C24H20Si/c1-5-13-21(14-6-1)25(22-15-7-2-8-16-22,23-17-9-3-10-18-23)24-19-11-4-12-20-24/h1-20H Copy

  
• IUPAC Standard InChIKey: JLAVCPKULITDHO-UHFFFAOYSA-N Copy
• CAS Registry Number: 1048-08-4
• 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: Tetraphenylsilane; Tetraphenylsilicon
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• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • References
  • Notes
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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.

Data compiled by: Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of solid

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

Reduced pressure boiling point

Enthalpy of sublimation

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:
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

Ionization energy determinations

Appearance energy determinations

IR Spectrum

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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: Coblentz Society, Inc.

Condensed Phase Spectrum

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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

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

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.

Smith and Andrews, 1931
Smith, R.H.; Andrews, D.H., Thermal energy studies. II. Phenyl derivatives of metals, J. Am. Chem. Soc., 1931, 53, 3661-3667. [all data]

Hance and Hauser, 1952
Hance, C.R.; Hauser, C.R., Cleavage of Tetraphenylsiland and Benzyltriphenylsilane by Potassium Amide, J. Am. Chem. Soc., 1952, 74, 1856. [all data]

Smith and Andrews, 1931, 2
Smith, R.H.; Andrews, D.H., Thermal Energy Studies II. Phenyl Derivatives of Metals, J. Am. Chem. Soc., 1931, 53, 3661-7. [all data]

Steele, 1978
Steele, W.V., The standard enthalpy of formation of tetraphenylsilane and the Ph«58872»M mean bond-dissociation energies of the Group IV elements, The Journal of Chemical Thermodynamics, 1978, 10, 5, 445-452, https://doi.org/10.1016/0021-9614(78)90092-7 . [all data]

Calle and Kana'an, 1974
Calle, Luz M.; Kana'an, Adli S., Enthalpies and entropies of sublimation of tetraphenyl silane and hexaphenyl disilane. The bond dissociation energies of Si«58872»C and Si«58872»Si, The Journal of Chemical Thermodynamics, 1974, 6, 10, 935-942, https://doi.org/10.1016/0021-9614(74)90214-6 . [all data]

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

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

McCauley and Smith, 1973
McCauley, James A.; Smith, Norman O., Sublimation pressures of solid solutions IV. (C6H5)4Si + (C6H5)4Sn, (C6H5)4Si + (C6H5)4Pb, and NH4Br + KBr, The Journal of Chemical Thermodynamics, 1973, 5, 1, 31-40, https://doi.org/10.1016/S0021-9614(73)80060-6 . [all data]

Novak and Potts, 1984
Novak, I.; Potts, A.W., The UV gas-phase photoelectron spectra of Group IVB tetraphenyl derivatives, J. Organomet. Chem., 1984, 262, 17. [all data]

Rodionov, Potapov, et al., 1973
Rodionov, A.N.; Potapov, V.K.; Rogozhin, K.L., Photoionization of certain aromatic heteroorganic compounds, High Energy Chem., 1973, 7, 249, In original 278. [all data]

Gaidis, Briggs, et al., 1971
Gaidis, J.M.; Briggs, P.R.; Shannon, T.W., Mass spectra of disilanes. Phenyl-silicon interaction and silicon-silicon bond strength, J. Phys. Chem., 1971, 75, 974. [all data]

Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  Cp,solid	Constant pressure heat capacity of solid
  Tboil	Boiling point
  Tfus	Fusion (melting) point
  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions

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