Silane, tetraphenyl-
- Formula: C24H20Si
- Molecular weight: 336.5011
- IUPAC Standard InChIKey: JLAVCPKULITDHO-UHFFFAOYSA-N
- 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
The 3d structure may be viewed using Java or Javascript. - Other names: Tetraphenylsilane; Tetraphenylsilicon
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Phase change data
Go To: Top, Gas phase ion energetics data, References, Notes
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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 505.15 | K | N/A | Hance and Hauser, 1952 | Uncertainty assigned by TRC = 2. K; TRC |
Tfus | 507.15 | K | N/A | Smith and Andrews, 1931 | Uncertainty assigned by TRC = 2. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 37.50 ± 0.41 | kcal/mol | N/A | Steele, 1978 | AC |
ΔsubH° | 35.71 ± 0.41 | kcal/mol | ME,TE | Calle and Kana'an, 1974 | AC |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
501. | 0.004 | PCR Inc., 1990 | BS |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
12.2 | 456. | A | Stephenson and Malanowski, 1987 | Based on data from 428. to 484. K.; AC |
12.2 | 428. to 489. | MG | McCauley and Smith, 1973 | AC |
Gas phase ion energetics data
Go To: Top, Phase change data, References, Notes
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
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.6 | PE | Novak and Potts, 1984 | LBLHLM |
8.50 ± 0.03 | PI | Rodionov, Potapov, et al., 1973 | LLK |
8.65 ± 0.15 | EI | Gaidis, Briggs, et al., 1971 | LLK |
8.96 | PE | Novak and Potts, 1984 | Vertical value; LBLHLM |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C18H15Si+ | 9.7 | C6H5 | PI | Rodionov, Potapov, et al., 1973 | LLK |
C18H15Si+ | 9.93 ± 0.08 | C6H5 | EI | Gaidis, Briggs, et al., 1971 | LLK |
References
Go To: Top, 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.
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
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
Go To: Top, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy 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
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.