4,4'-Didecanoyloxydiphenyldiacetylene
- Formula: C36H46O4
- Molecular weight: 542.7480
- IUPAC Standard InChI: InChI=1S/C36H46O4/c1-3-5-7-9-11-13-15-21-35(37)39-33-27-23-31(24-28-33)19-17-18-20-32-25-29-34(30-26-32)40-36(38)22-16-14-12-10-8-6-4-2/h23-30H,3-16,21-22H2,1-2H3
- IUPAC Standard InChIKey: PBQTWTYWXMTXRB-UHFFFAOYSA-N
- CAS Registry Number: 92341-28-1
- 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 as indicated in comments:
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Enthalpy of fusion
| ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 42.2 | 403. | Domalski and Hearing, 1996 | AC |
Enthalpy of phase transition
| ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 44.900 | 308. | crystaline, II | crystaline, I | Ozcayir, Asrar, et al., 1984 | DH |
| 42.200 | 403. | crystaline, I | liquid | Ozcayir, Asrar, et al., 1984 | DH |
Entropy of phase transition
| ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 122.1 | 308. | crystaline, II | crystaline, I | Ozcayir, Asrar, et al., 1984 | DH |
| 104.6 | 403. | crystaline, I, Solid | liquid, isotropic | Ozcayir, Asrar, et al., 1984 | 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.
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]
Ozcayir, Asrar, et al., 1984
Ozcayir, Y.; Asrar, J.; Blumstein, A.,
Diacetylenic liquid crystals: a systematic investigation of the homologous series of 4,4'-dialkanoyloxydiphenyldiacetylenes,
Mol. Cryst. Liq. Cryst., 1984, 110, 263-276. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
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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