Cyclohexane-d12
- Formula: C6D12
- Molecular weight: 96.2334
- IUPAC Standard InChIKey: XDTMQSROBMDMFD-LBTWDOQPSA-N
- CAS Registry Number: 1735-17-7
- 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. - Species with the same structure:
- Isotopologues:
- Other names: [2H12]cyclohexane
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- 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, Gas phase ion energetics 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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
S°liquid | 228.2 | J/mol*K | N/A | Mraw and Naas-O'Rourke, 1980 |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
188.7 | 298.15 | Mraw and Naas-O'Rourke, 1980 | T = 120 to 323.15 K. |
183.84 | 298. | Nikolaev, Rabinovich, et al., 1966 | T = 10 to 50°C. |
Phase change data
Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics 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:
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔvapH° | 33.1 | kJ/mol | N/A | Davis and Schiessler, 1953 | Based on data from 283. to 353. K.; AC |
Enthalpy of phase transition
ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
6.810 | 186.0 | crystaline, II | crystaline, I | Mraw and Naas-O'Rourke, 1980 | DH |
2.620 | 277.2 | crystaline, I | liquid | Mraw and Naas-O'Rourke, 1980 | DH |
Entropy of phase transition
ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
36.61 | 186.0 | crystaline, II | crystaline, I | Mraw and Naas-O'Rourke, 1980 | DH |
9.452 | 277.2 | crystaline, I | liquid | Mraw and Naas-O'Rourke, 1980 | DH |
Gas phase ion energetics 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 as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.90 ± 0.10 | EQ | Lias, 1982 | LBLHLM |
9.93 ± 0.15 | EQ | Mautner(Meot-Ner), Sieck, et al., 1981 | LLK |
9.88 | EQ | Lias, Ausloos, et al., 1976 | LLK |
9.91 ± 0.01 | S | Raymonda, 1972 | LLK |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Mraw and Naas-O'Rourke, 1980
Mraw, S.C.; Naas-O'Rourke, D.F.,
Thermodyanamic properties of cyclohexane-d12: low-temperature heat capacity and enthalpies of transition and fusion from accurate differential scanning calorimetry, and the entropy from spectroscopic results,
J. Chem. Thermodynam., 1980, 12, 691-704. [all data]
Nikolaev, Rabinovich, et al., 1966
Nikolaev, P.N.; Rabinovich, I.B.; Gal'perin, V.A.; Tsvetkov, V.G.,
Isotopic effect on the specific heat and compressibility of deuterocyclohexane,
Zhur. Fiz. Khim., 1966, 40, 1091-1097. [all data]
Davis and Schiessler, 1953
Davis, Raymond T.; Schiessler, Robert W.,
Vapor Pressures of Perdeuterobenzene and of Perdeuterocyclohex ane,
J. Phys. Chem., 1953, 57, 9, 966-968, https://doi.org/10.1021/j150510a027
. [all data]
Lias, 1982
Lias, S.G.,
Thermochemical information from ion-molecule rate constants,
Ion Cyclotron Reson. Spectrom. 1982, 1982, 409. [all data]
Mautner(Meot-Ner), Sieck, et al., 1981
Mautner(Meot-Ner), M.; Sieck, L.W.; Ausloos, P.,
Ionization of normal alkanes: Enthalpy, entropy, structural, and isotope effects,
J. Am. Chem. Soc., 1981, 103, 5342. [all data]
Lias, Ausloos, et al., 1976
Lias, S.G.; Ausloos, P.; Horvath, Z.,
Charge transfer reactions in alkane and cycloalkane systems. Estimated ionization potentials,
Int. J. Chem. Kinet., 1976, 8, 725. [all data]
Raymonda, 1972
Raymonda, J.W.,
Rydberg states in cyclic alkanes,
J. Chem. Phys., 1972, 56, 3912. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition 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.