1,1':4',1'':4'',1''':4''',1''''-Quinquephenyl
- Formula: C30H22
- Molecular weight: 382.4957
- IUPAC Standard InChI: InChI=1S/C30H22/c1-3-7-23(8-4-1)25-11-15-27(16-12-25)29-19-21-30(22-20-29)28-17-13-26(14-18-28)24-9-5-2-6-10-24/h1-22H
- IUPAC Standard InChIKey: OMCUOJTVNIHQTI-UHFFFAOYSA-N
- CAS Registry Number: 3073-05-0
- 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: p-Quinquephenyl; p-Pentaphenyl; p-Quinquiphenyl
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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
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tfus | 645. | K | N/A | Vdovtsova and Tsukervanik, 1954 | Uncertainty assigned by TRC = 6. K; TRC |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 10.110 | 659.6 | Smith, 1979 | Solid-nematic phase change.; DH |
Entropy of fusion
| ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 15.3 | 659.6 | Smith, 1979 | Solid-nematic; DH |
Enthalpy of phase transition
| ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 0.220 | 688.1 | liquid | liquid | Smith, 1979 | DH |
Entropy of phase transition
| ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 0.320 | 688.1 | liquid, Nematic | liquid, isotropic phase change | Smith, 1979 | 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.
Vdovtsova and Tsukervanik, 1954
Vdovtsova, E.A.; Tsukervanik, I.P.,
Condensation of Phenylaluminum Diiodide with Aromatic Halogen Compounds,
Zh. Obshch. Khim., 1954, 24, 558. [all data]
Smith, 1979
Smith, G.W.,
Phase behavior of some linear polyphenyls,
Mol. Cryst. Liq. Cryst., 1979, 49, 207-209. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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