Dimethyltetraphenylcyclotrisiloxane
- Formula: C26H26O3Si3
- Molecular weight: 470.7393
- IUPAC Standard InChI: InChI=1S/C26H26O3Si3/c1-30(2)27-31(23-15-7-3-8-16-23,24-17-9-4-10-18-24)29-32(28-30,25-19-11-5-12-20-25)26-21-13-6-14-22-26/h3-22H,1-2H3
- IUPAC Standard InChIKey: QLEMFNDSSPDDRW-UHFFFAOYSA-N
- CAS Registry Number: 1438-86-4
- Chemical structure:
This structure is also available as a 2d Mol file - Species with the same structure:
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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Ttriple | 361.06 | K | N/A | Kuliev, Dzhafarov, et al., 1982 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC |
Enthalpy of fusion
| ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 28.2 | 361.1 | Domalski and Hearing, 1996 | AC |
Enthalpy of phase transition
| ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 28.200 | 361.06 | crystaline, I | liquid | Kuliev, Dzhafarov, et al., 1982, 2 | DH |
Entropy of phase transition
| ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 78.2 | 361.06 | crystaline, I | liquid | Kuliev, Dzhafarov, et al., 1982, 2 | DH |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Kuliev, Dzhafarov, et al., 1982
Kuliev, A.M.; Dzhafarov, O.I.; Karasharli, K.A.; Kostryukov, V.N.,
Heat capacity and thermodynamic functions of cyclic methylphenylsiloxanes,
Zh. Fiz. Khim., 1982, 56, 310-13. [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]
Kuliev, Dzhafarov, et al., 1982, 2
Kuliev, A.M.; Dzhafarov, O.I.; Karasharli, K.A.; Kostryukov, V.N.,
Heat capacity and thermodynamic functions of cyclic methylphenylsiloxanes,
Zhur. Fiz. Khim., 1982, 56, 310-313. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Ttriple Triple point temperature ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfusH Enthalpy of fusion - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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