1,1,3,3-Tetraethyl-5,5-diphenylcylotrisiloxane
- Formula: C20H30O3Si3
- Molecular weight: 402.7069
- IUPAC Standard InChI: InChI=1S/C20H30O3Si3/c1-5-24(6-2)21-25(7-3,8-4)23-26(22-24,19-15-11-9-12-16-19)20-17-13-10-14-18-20/h9-18H,5-8H2,1-4H3
- IUPAC Standard InChIKey: WFJNZPXZHWTQMF-UHFFFAOYSA-N
- CAS Registry Number: 108543-32-4
- Chemical structure:
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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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| S°liquid | 711.4 | J/mol*K | N/A | Dzhafarov and Kuliev, 1987 |
Constant pressure heat capacity of liquid
| Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 629.6 | 298.15 | Dzhafarov and Kuliev, 1987 | T = 5 to 315 K. |
Phase change data
Go To: Top, Condensed phase thermochemistry 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:
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos
Enthalpy of fusion
| ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 18.374 | 279.082 | Dzhafarov and Kuliev, 1987 | DH |
| 18.37 | 279.1 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
| ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 66.01 | 279.082 | Dzhafarov and Kuliev, 1987 | 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.
Dzhafarov and Kuliev, 1987
Dzhafarov, O.I.; Kuliev, A.M.,
Specific heat and thermodynamic properties of 1,1,3,3-tetraethyl-5,5-diphenylcyclotrisiloxane at 5-315 K,
Zhur. Fiz. Khim., 1987, 61, 606-610. [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,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid 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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