Cyclohexane, 1,4-dimethyl-, cis-
- Formula: C8H16
- Molecular weight: 112.2126
- IUPAC Standard InChI:
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- IUPAC Standard InChIKey: QRMPKOFEUHIBNM-OCAPTIKFSA-N
- CAS Registry Number: 624-29-3
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
- Other names: cis-1,4-Dimethylcyclohexane; 1,cis-4-Dimethylcyclohexane; 1,4-Dimethylcyclohexane, cis-; Cyclohexane, cis-1,4-dimethyl-; 1,4(cis)-dimethylcyclohexane
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Gas 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: Glushko Thermocenter, Russian Academy of Sciences, Moscow
|S°gas||88.640||cal/mol*K||N/A||Huffman H.M., 1949|
Constant pressure heat capacity of gas
|Cp,gas (cal/mol*K)||Temperature (K)||Reference||Comment|
|9.500||50.||Thermodynamics Research Center, 1997||p=1 bar. There is an appreciable difference, mainly at high temperatures, with values estimated earlier by a method of increments [ Beckett C.W., 1947].|
Condensed phase thermochemistry data
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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
|cH°liquid||-1247.40 ± 0.41||kcal/mol||Ccb||Johnson, Prosen, et al., 1947||Corresponding «DELTA»fHºliquid = -51.53 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS|
|S°liquid||64.799||cal/mol*K||N/A||Huffman, Todd, et al., 1949||DH|
Constant pressure heat capacity of liquid
|Cp,liquid (cal/mol*K)||Temperature (K)||Reference||Comment|
|50.691||298.15||Huffman, Todd, et al., 1949||T = 12 to 310 K.; DH|
Reaction thermochemistry data
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Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
By formula: C8H16 = C8H16
|rH°||1.8 ± 0.1||kcal/mol||Eqk||Mann, 1968||gas phase; At 593K|
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Notes
Huffman H.M., 1949
Huffman H.M., Low-temperature thermal data on eight C8H16 alkylcyclohexanes, J. Am. Chem. Soc., 1949, 71, 584-592. [all data]
Thermodynamics Research Center, 1997
Thermodynamics Research Center, Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]
Beckett C.W., 1947
Beckett C.W., The thermodynamic properties and molecular structure of cyclohexane, methylcyclohexane, ethylcyclohexane, and seven dimethylcyclohexanes, J. Am. Chem. Soc., 1947, 69, 2488-2495. [all data]
Johnson, Prosen, et al., 1947
Johnson, W.H.; Prosen, E.J.; Rossini, F.D., Heats of combustion and isomerization of the eight C8H16 alkylcyclohexanes, J. Res. NBS, 1947, 39, 49-52. [all data]
Huffman, Todd, et al., 1949
Huffman, H.M.; Todd, S.S.; Oliver, G.D., Low temperature thermal data on eight C8H16 alkylcyclohexanes, J. Am. Chem. Soc., 1949, 71, 584-592. [all data]
Mann, G., Conformation and physical data of alkanes and cyclanes. IV. Conformation energy of gauche-anticonformers, Tetrahedron, 1968, 24, 6495-65. [all data]
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas Cp,liquid Constant pressure heat capacity of liquid S°gas Entropy of gas at standard conditions S°liquid Entropy of liquid at standard conditions cH°liquid Enthalpy of combustion of liquid at standard conditions rH° Enthalpy of reaction at standard conditions
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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