4-n-Pentylphenyl-4'-heptyloxythiobenzoate
- Formula: C25H34O2S
- Molecular weight: 398.601
- IUPAC Standard InChI: InChI=1S/C25H34O2S/c1-3-5-7-8-10-20-26-23-18-14-22(15-19-23)25(28)27-24-16-12-21(13-17-24)11-9-6-4-2/h12-19H,3-11,20H2,1-2H3
- IUPAC Standard InChIKey: VDBSZYZODNPVGP-UHFFFAOYSA-N
- CAS Registry Number: 61519-00-4
- Chemical 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 by: Eugene S. Domalski and Elizabeth D. Hearing
Enthalpy of phase transition
| ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 0.2789 | 183.53 | crystaline, III | crystaline, II | Chrusciel, Richter, et al., 1981 | |
| 0.0545 | 272. | crystaline, II | crystaline, I | Chrusciel, Richter, et al., 1981 | |
| 6.8150 | liq325.87 | crystaline, I | Chrusciel, Richter, et al., 1981 | 36 J/mol*K |
Entropy of phase transition
| ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 1.44 | 183.53 | crystaline, III | crystaline, II | Chrusciel, Richter, et al., 1981 | |
| 0.21 | 272. | crystaline, II | crystaline, I | Chrusciel, Richter, et al., 1981 | |
| 21.14 | liq325.87 | crystaline, I, Nematic | , isotropic liquid | Chrusciel, Richter, et al., 1981 | 36 |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Chrusciel, Richter, et al., 1981
Chrusciel, J.; Richter, L.; Rachwalska, M.,
Study of the phase situation in 4-n-pentylphenyl-4'-n-heptyloxythiobenzoate (7S5),
Mol. Cryst. Liq. Cryst., 1981, 75, 155-167. [all data]
Notes
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- Symbols used in this document:
ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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