2,3,6,7,10,11-Hexa-n-octanoyloxy triphenylene
- Formula: C66H96O12
- Molecular weight: 1081.4612
- CAS Registry Number: 70351-94-9
- Information on this page:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Condensed phase thermochemistry data
Go To: Top, Phase change 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 by: Eugene S. Domalski and Elizabeth D. Hearing
Constant pressure heat capacity of solid
| Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 2016.6 | 298.651 | Van Hecke, Kaji, et al., 1986 | crystaline, I phase; T = 12 to 425 K. Unsmoothed experimental datum. |
| 2082.0 | 299.036 | Van Hecke, Kaji, et al., 1986 | crystaline, II phase; T = 12 to 425 K. Unsmoothed experimental datum. |
| 1956.1 | 298.428 | Van Hecke, Kaji, et al., 1986 | crystaline, III phase; T = 12 to 425 K. Unsmoothed experimental datum. |
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 by: Eugene S. Domalski and Elizabeth D. Hearing
Enthalpy of phase transition
| ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 24.210 | 362.6 | crystaline, I | liquid | Van Hecke, Kaji, et al., 1986 | Crystal/discotic. |
| 3.626 | 402.16 | liquid | liquid | Van Hecke, Kaji, et al., 1986 | Discotic/Isotropic liquid. |
| 25.440 | 359.7 | crystaline, II | liquid | Van Hecke, Kaji, et al., 1986 | Crystal/discotic. |
| 3.626 | 402.16 | liquid | liquid | Van Hecke, Kaji, et al., 1986 | Discotic/isotropic liquid. |
| 15.320 | 290. | crystaline, III | crystaline, I | Van Hecke, Kaji, et al., 1986 | Expected phase transition, but not observed. |
| 34.770 | 348. | crystaline, III | liquid | Van Hecke, Kaji, et al., 1986 | Crystal/discotic. |
| 3.626 | 402.16 | liquid | liquid | Van Hecke, Kaji, et al., 1986 | Discotic/isotropic liquid. |
Entropy of phase transition
| ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 66.76 | 362.6 | crystaline, I | liquid | Van Hecke, Kaji, et al., 1986 | Crystal/discotic. |
| 9.02 | 402.16 | liquid | liquid | Van Hecke, Kaji, et al., 1986 | Discotic/Isotropic |
| 71.12 | 359.7 | crystaline, II | liquid | Van Hecke, Kaji, et al., 1986 | Crystal/discotic. |
| 9.02 | 402.16 | liquid | liquid | Van Hecke, Kaji, et al., 1986 | Discotic/isotropic |
| 52.8 | 290. | crystaline, III | crystaline, I | Van Hecke, Kaji, et al., 1986 | Expected |
| 99.91 | 348. | crystaline, III | liquid | Van Hecke, Kaji, et al., 1986 | Crystal/discotic. |
| 9.02 | 402.16 | liquid | liquid | Van Hecke, Kaji, et al., 1986 | Discotic/isotropic |
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.
Van Hecke, Kaji, et al., 1986
Van Hecke, G.R.; Kaji, K.; Sorai, M.,
Heat capacity of the discotic mesogen, 2,3,6,7,10,11-Hexa-n-octanoyloxytriphenylene: a complex solid state polymorphism,
Mol. Cryst. Liq. Cryst., 1986, 136(2-4), 197-220. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.