Adamantane, 1,3-dimethyl-
- Formula: C12H20
- Molecular weight: 164.2872
- IUPAC Standard InChIKey: CWNOIUTVJRWADX-UHFFFAOYSA-N
- CAS Registry Number: 702-79-4
- 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: Tricyclo[3.3.1.1(3,7)]decane, 1,3-dimethyl-; 1,3-Dimethyladamantane; 1,3-dimethyltricyclo[3.3.1.13,7]decane
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, 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°gas | -219. ± 3. | kJ/mol | Ccb | Steele and Watt, 1977 |
Condensed phase thermochemistry 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | -287. ± 3. | kJ/mol | Ccb | Steele and Watt, 1977 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -7294. ± 3. | kJ/mol | Ccb | Steele and Watt, 1977 | Corresponding ΔfHºsolid = -287. kJ/mol (simple calculation by NIST; no Washburn corrections) |
Phase change data
Go To: Top, Gas phase thermochemistry data, 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
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 471. | K | N/A | Anonymous, 1969 | Uncertainty assigned by TRC = 4. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 245.0 | K | N/A | Clark, Knox, et al., 1977 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 708. | K | N/A | Steele, Chirico, et al., 1996 | Uncertainty assigned by TRC = 2. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 30.00 | bar | N/A | Steele, Chirico, et al., 1996 | Uncertainty assigned by TRC = 2.50 bar; from extraploation of obs. vapor pressures to Tc; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 1.750 | mol/l | N/A | Steele, Chirico, et al., 1996 | Uncertainty assigned by TRC = 0.073 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 49.7 ± 0.2 | kJ/mol | C | Varushchenko, Pashchenko, et al., 2001 | AC |
ΔvapH° | 49.4 ± 0.3 | kJ/mol | EB | Steele, Chirico, et al., 1996, 2 | Based on data from 352. to 526. K.; AC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 68. ± 1. | kJ/mol | V | Steele and Watt, 1977 | ALS |
ΔsubH° | 68.0 | kJ/mol | N/A | Steele and Watt, 1977 | DRB |
ΔsubH° | 67.8 ± 1.3 | kJ/mol | EB | Steele and Watt, 1977 | AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
49.2 ± 0.2 | 308. | C | Varushchenko, Pashchenko, et al., 2001 | AC |
45.9 ± 0.3 | 360. | EB | Steele, Chirico, et al., 1996, 2 | Based on data from 352. to 526. K.; AC |
43.7 ± 0.3 | 400. | EB | Steele, Chirico, et al., 1996, 2 | Based on data from 352. to 526. K.; AC |
41.5 ± 0.3 | 440. | EB | Steele, Chirico, et al., 1996, 2 | Based on data from 352. to 526. K.; AC |
39.1 ± 0.3 | 480. | EB | Steele, Chirico, et al., 1996, 2 | Based on data from 352. to 526. K.; AC |
36.4 ± 0.3 | 520. | EB | Steele, Chirico, et al., 1996, 2 | Based on data from 352. to 526. K.; AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
1.54 | 247.8 | AC | Varushchenko, Druzhinina, et al., 2005 | Based on data from 8. to 373. K.; AC |
0.94 | 244. | DSC | Arntz and Schneider, 1980 | AC |
0.92 | 245. | N/A | Clark, Knox, et al., 1977 | AC |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
33.3 | 221. | Clark, Knox, et al., 1977 | CAL |
3.76 | 245. |
References
Go To: Top, Gas phase thermochemistry data, 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.
Steele and Watt, 1977
Steele, W.V.; Watt, I.,
The standard enthalpies of formation of adamantanoid compounds 4. Methyladamantanes,
J. Chem. Thermodyn., 1977, 9, 843-849. [all data]
Anonymous, 1969
Anonymous, R.,
Freon Fluorocarbons - properties and applications, E. I. Du Pont, Freon Product Information, B-2, 1969. [all data]
Clark, Knox, et al., 1977
Clark, Timothy; Knox, Trevor Mc.O.; Mackle, Henry; McKervey, M. Anthony,
Order--disorder transitions in substituted adamantanes,
J. Chem. Soc., Faraday Trans. 1, 1977, 73, 0, 1224, https://doi.org/10.1039/f19777301224
. [all data]
Steele, Chirico, et al., 1996
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A.,
Vapor pressure of acetophenone, (+-)-1,2-butanediol, (+-)-1,3-butanediol, diethylene glycol monopropyl ether, 1,3-dimethyladamantane, 2-ethoxyethyl acetate, ethyl octyl sufide, and pentyl acetate,
J. Chem. Eng. Data, 1996, 41, 1255-68. [all data]
Varushchenko, Pashchenko, et al., 2001
Varushchenko, R.M.; Pashchenko, L.L.; Druzhinina, A.I.; Abramenkov, A.V.; Pimersin, A.A.,
Thermodynamics of vaporization of some alkyladamantanes,
The Journal of Chemical Thermodynamics, 2001, 33, 7, 733-744, https://doi.org/10.1006/jcht.2000.0773
. [all data]
Steele, Chirico, et al., 1996, 2
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A.,
Vapor Pressure of Acetophenone, (±)-1,2-Butanediol, (±)-1,3-Butanediol, Diethylene Glycol Monopropyl Ether, 1,3-Dimethyladamantane, 2-Ethoxyethyl Acetate, Ethyl Octyl Sulfide, and Pentyl Acetate,
J. Chem. Eng. Data, 1996, 41, 6, 1255-1268, https://doi.org/10.1021/je9601117
. [all data]
Varushchenko, Druzhinina, et al., 2005
Varushchenko, R.M.; Druzhinina, A.I.; Senyavin, V.M.; Sarkisova, V.S.,
The low-temperature heat capacities, phase transitions and thermodynamic properties of 1,3-dimethyladamantane and 1-ethyladamantane,
The Journal of Chemical Thermodynamics, 2005, 37, 2, 141-151, https://doi.org/10.1016/j.jct.2004.06.009
. [all data]
Arntz and Schneider, 1980
Arntz, Horst; Schneider, Gerhard M.,
Calorimetric investigations of plastic crystals at low temperatures and high pressures with differential scanning calorimetry,
Faraday Discuss. Chem. Soc., 1980, 69, 139, https://doi.org/10.1039/dc9806900139
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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