Dewar benzene, hexamethyl-
- Formula: C12H18
- Molecular weight: 162.2713
- IUPAC Standard InChI: InChI=1S/C12H18/c1-7-8(2)12(6)10(4)9(3)11(7,12)5/h1-6H3
- IUPAC Standard InChIKey: RVNQQZMIWZPGNA-UHFFFAOYSA-N
- CAS Registry Number: 7641-77-2
- 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: Bicyclo[2.2.0]hexa-2,5-diene, 1,2,3,4,5,6-hexamethyl-; Hexamethyl Dewar benzene; Hexamethylbicyclo[2.2.0]hexa-2,5-diene; 1,2,3,4,5,6-Hexamethylbicyclo[2.2.0]hexa-2,5-diene; Bicyclo(2.2.0)hexa-2,5-diene, hexamethyl-; 2-Butin hexamethyl-dewar-benzol; Hexamethyl-bicyclo(2.2.0)hexa-2,5-dien; 1,2,3,4,5,6-hexamethylbicyclo(2,2,0)hexa-2,5-diene
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Options:
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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°liquid | -90.4 | kJ/mol | Ccb | Schafer and Hellmann, 1967 | |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -7385. ± 4.6 | kJ/mol | Ccb | Schafer and Hellmann, 1967 | Corresponding ΔfHºliquid = 92. kJ/mol (simple calculation by NIST; no Washburn corrections) |
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: Robert L. Brown and Stephen E. Stein
Reduced pressure boiling point
| Tboil (K) | Pressure (bar) | Reference |
|---|---|---|
| 333.2 | 0.027 | Aldrich Chemical Company Inc., 1990 |
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.
Schafer and Hellmann, 1967
Schafer, W.; Hellmann, H.,
Hexamethyl-Dewar-Benzol (Hexamethyl-bicyclo[2.2.0]hexa-2,5-dien),
Angew. Chem., 1967, 79, 566-573. [all data]
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Tboil Boiling point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions - 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.