1H-Indene, 2,3-dihydro-1,1,4,6-tetramethyl-
- Formula: C13H18
- Molecular weight: 174.2820
- IUPAC Standard InChIKey: PJPNYZCIGFQVQG-UHFFFAOYSA-N
- CAS Registry Number: 941-60-6
- 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: Indan, 1,1,4,6-tetramethyl-; 2,3-Dihydro-1,1,4,6-tetramethyl-1H-indene
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -31.51 ± 0.67 | kcal/mol | Ccb | Good, 1971 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -1805.99 ± 0.65 | kcal/mol | Ccb | Good, 1971 | Corresponding ΔfHºliquid = -31.51 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 83.17 | cal/mol*K | N/A | Lee-Bechtold, Finke, et al., 1981 | DH |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
71.61 | 298.15 | Lee-Bechtold, Finke, et al., 1981 | T = 10 to 400 K.; DH |
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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Ttriple | 273.51 | K | N/A | Lee-Bechtold, Finke, et al., 1981, 2 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 14.67 ± 0.11 | kcal/mol | V | Osborn and Scott, 1978 | ALS |
ΔvapH° | 14.7 ± 0.1 | kcal/mol | EB,IP | Osborn and Scott, 1978, 2 | Based on data from 313. to 469. K.; AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
14.2 | 328. | A,EB,IP | Stephenson and Malanowski, 1987 | Based on data from 313. to 383. K. See also Osborn and Scott, 1978, 2.; AC |
14.4 | 328. | A,EB,IP | Stephenson and Malanowski, 1987 | Based on data from 313. to 469. K. See also Osborn and Scott, 1978, 2.; AC |
12.4 | 439. | A,EB,IP | Stephenson and Malanowski, 1987 | Based on data from 423. to 469. K. See also Osborn and Scott, 1978, 2.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
3.762 | 273.6 | Acree, 1991 | AC |
Temperature of phase transition
Ttrs (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|
191. | crystaline, II | crystaline, I | Lee-Bechtold, Finke, et al., 1981 | DH |
Enthalpy of phase transition
ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
3.7624 | 273.51 | crystaline, I | liquid | Lee-Bechtold, Finke, et al., 1981 | DH |
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.
Good, 1971
Good, W.D.,
The enthalpies of combustion and formation of indan and seven alkylindans,
J. Chem. Thermodyn., 1971, 3, 711-717. [all data]
Lee-Bechtold, Finke, et al., 1981
Lee-Bechtold, S.H.; Finke, H.L.; Messerly, J.F.; Scott, D.W.,
Thermodynamic properties of methyl-substituted indans,
J. Chem. Thermodyn., 1981, 13, 213-228. [all data]
Lee-Bechtold, Finke, et al., 1981, 2
Lee-Bechtold, S.H.; Finke, H.L.; Messerly, J.F.; Scott, D.W.,
Thermodynamic properties of methyl-substitued indans,
J. Chem. Thernodyn., 1981, 13, 213-28. [all data]
Osborn and Scott, 1978
Osborn, A.G.; Scott, D.W.,
J. Chem. Thermodyn., 1978, 10, 619. [all data]
Osborn and Scott, 1978, 2
Osborn, A.G.; Scott, D.W.,
Vapor-pressure and enthalpy of vaporization of indan and five methyl-substituted indans,
The Journal of Chemical Thermodynamics, 1978, 10, 7, 619-628, https://doi.org/10.1016/0021-9614(78)90102-7
. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Acree, 1991
Acree, William E.,
Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation,
Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions Ttriple Triple point temperature Ttrs Temperature of phase transition ΔHtrs Enthalpy of phase transition ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfusH Enthalpy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization 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.