Triphenylmethyl chloride
- Formula: C19H15Cl
- Molecular weight: 278.775
- IUPAC Standard InChIKey: JBWKIWSBJXDJDT-UHFFFAOYSA-N
- CAS Registry Number: 76-83-5
- 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: Trityl chloride; Triphenylchloromethane; Chlorotriphenylmethane; Benzene, 1,1',1''-(chloromethylidyne)tris-; Methane, chlorotriphenyl-
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | 43.7 | kcal/mol | Ccb | Schmidlin, 1906 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -2348.5 | kcal/mol | Ccb | Schmidlin, 1906 | ALS |
Constant pressure heat capacity of solid
Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
87.780 | 298.15 | Naoki, Seki, et al., 1991 | T = 232 to 411 K. Cp value calculated from equation. Cp(c) = -3980 + 55.15T - 0.2726T2 + 6.07x10-4T3 - 5.0x10-7T4 J/mol*K (232.8 to 359.0 K).; DH |
74.50 | 298.5 | Smith and Andrews, 1931 | T = 102 to 346 K. Value is unsmoothed experimental datum.; DH |
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
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 381. | K | N/A | Smith and Andrews, 1931, 2 | Uncertainty assigned by TRC = 4. K; m.p. by Hg thermometer; TRC |
Tfus | 382.4 | K | N/A | Smith and Andrews, 1931, 2 | Uncertainty assigned by TRC = 0.5 K; m.p. b thermocouple; TRC |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
505.7 | 0.026 | Weast and Grasselli, 1989 | BS |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
6.6683 | 376.8 | Naoki, Seki, et al., 1991 | DH |
6.67 | 376.8 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
17.7 | 376.8 | Naoki, Seki, et al., 1991 | DH |
Temperature of phase transition
Ttrs (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|
250. | crystaline | glass | Naoki, Seki, et al., 1991 | DH |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Schmidlin, 1906
Schmidlin, M.J.,
Recherches chimiques et thermochimiques sur la constitution des rosanilines,
Ann. Chim. Phys., 1906, 1, 195-256. [all data]
Naoki, Seki, et al., 1991
Naoki, M.; Seki, M.; Kugo, H.; Saito, F.; Taioka, T.,
Dielectric relaxation in supercooled triphenylchloromethane and intrinsic factor determining mobility in molecular liquids,
J. Phys. Chem., 1991, 95(14), 5628-5633. [all data]
Smith and Andrews, 1931
Smith, R.H.; Andrews, D.H.,
Thermal energy studies. I. Phenyl derivatives of methane,
ethane and some related compounds. J. Am. Chem. Soc., 1931, 53, 3644-3660. [all data]
Smith and Andrews, 1931, 2
Smith, R.H.; Andrews, D.H.,
Thermal Energy Studies I. Phenyl Derivatives of Methane, Ethane and Some Related Compounds,
J. Am. Chem. Soc., 1931, 53, 3644. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid Tboil Boiling point Tfus Fusion (melting) point Ttrs Temperature of phase transition ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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