Cyclohexane, 1,3-dimethyl-, cis-

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.


Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction 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 by: Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
gas88.719cal/mol*KN/AHuffman H.M., 1949 

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
9.46050.Thermodynamics Research Center, 1997p=1 bar. There is an appreciable difference, mainly at high temperatures, with values estimated earlier by a method of increments [ Beckett C.W., 1947].
15.51100.
20.39150.
25.00200.
33.44273.15
36.71298.15
36.97300.
50.53400.
62.81500.
73.18600.
81.81700.
89.03800.
95.10900.
100.21000.
104.61100.
108.31200.
111.41300.
114.11400.
116.51500.
121.01750.
124.32000.
126.62250.
128.52500.
129.82750.
130.93000.

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction 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:
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
Δcliquid-1245.66 ± 0.41kcal/molCcbJohnson, Prosen, et al., 1947Corresponding Δfliquid = -53.27 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid65.160cal/mol*KN/AHuffman, Todd, et al., 1949DH

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
50.041298.15Huffman, Todd, et al., 1949T = 12 to 310 K.; DH

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction 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:
BS - Robert L. Brown and Stephen E. Stein
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
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil393. ± 1.KAVGN/AAverage of 22 out of 24 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus196.09KN/AForziati, Glasgow, et al., 1946Uncertainty assigned by TRC = 0.02 K; called 1,trans-3-dimethylcyclohexane in the article; TRC
Tfus177.95KN/AAnonymous, 1941Uncertainty assigned by TRC = 0.2 K; TRC
Tfus194.15KN/ALeslie and Heuer, 1937Uncertainty assigned by TRC = 3. K; TRC
Quantity Value Units Method Reference Comment
Ttriple197.59KN/AHuffman, Todd, et al., 1949, 2Uncertainty assigned by TRC = 0.02 K; TRC
Ttriple197.580KN/AHuffman, 1948Uncertainty assigned by TRC = 0.05 K; TRC
Ttriple197.590KN/AHuffman, 1948Uncertainty assigned by TRC = 0.03 K; TRC
Quantity Value Units Method Reference Comment
Tc591.KN/AMajer and Svoboda, 1985 
Quantity Value Units Method Reference Comment
Δvap9.156kcal/molN/AMajer and Svoboda, 1985 
Δvap9.11kcal/molN/AKusano and Saito, 1975AC
Δvap9.13kcal/molN/AReid, 1972AC
Δvap9.13 ± 0.02kcal/molCOsborne and Ginnings, 1947AC
Δvap9.135kcal/molCOsborne and Ginnings, 1947, 2ALS

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
7.866393.3N/AMajer and Svoboda, 1985 
8.80333.AStephenson and Malanowski, 1987Based on data from 318. to 396. K.; AC
8.34 ± 0.02363.CMcCullough, Person, et al., 1951AC
7.96 ± 0.02385.CMcCullough, Person, et al., 1951AC
9.01331.MMWillingham, Taylor, et al., 1945Based on data from 316. to 398. K.; AC

Enthalpy of vaporization

ΔvapH = A exp(-βTr) (1 − Tr)β
    ΔvapH = Enthalpy of vaporization (at saturation pressure) (kcal/mol)
    Tr = reduced temperature (T / Tc)

View plot Requires a JavaScript / HTML 5 canvas capable browser.

Temperature (K) A (kcal/mol) β Tc (K) Reference Comment
298. to 385.12.700.2721591.Majer and Svoboda, 1985 

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Reference Comment
2.58609197.59Huffman, Todd, et al., 1949DH
2.586197.6Domalski and Hearing, 1996AC

Entropy of fusion

ΔfusS (cal/mol*K) Temperature (K) Reference Comment
13.09197.59Huffman, Todd, et al., 1949DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, 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: 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.

Individual Reactions

Cyclohexane, 1,3-dimethyl-, cis- = Cyclohexane, 1,3-dimethyl-, trans-

By formula: C8H16 = C8H16

Quantity Value Units Method Reference Comment
Δr-1.9 ± 0.1kcal/molEqkMann, 1968gas phase; At 593K

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction 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: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

IE (eV) Method Reference
≤9.98 ± 0.05EIHerzschuh and Sicker, 1981

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C6H11+11.06CH3EIHerzschuh and Sicker, 1981 
C6H11+11.20 ± 0.05C2H5EIHerzschuh and Sicker, 1981 

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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.

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]

Forziati, Glasgow, et al., 1946
Forziati, A.F.; Glasgow, A.R.; Willingham, C.B.; Rossini, F.D., Specification adn Properties of 29 Paraffin, 4 Alkylcyclopentanes, 10 Alkylcyclohexanes and 8 Alkylbenzene Hydrocarbons, J. Res. Natl. Bur. Stand. (U. S.), 1946, 36, 129. [all data]

Anonymous, 1941
Anonymous, R., , Am. Pet. Inst. Hydrocarbon Res. Proj., Third Annu. Rep., Ohio State Univ., Aug. 31, 1941. [all data]

Leslie and Heuer, 1937
Leslie, R.T.; Heuer, W.W., Study of the Crystal Behavior of Hydrocarbons, J. Res. Natl. Bur. Stand. (U. S.), 1937, 18, 639. [all data]

Huffman, Todd, et al., 1949, 2
Huffman, H.M.; Todd, S.S.; Oliver, G.D., Low Temperature Thermal Data on Eight C8H16 Alkylcyclohexanes, J. Am. Chem. Soc., 1949, 71, 584. [all data]

Huffman, 1948
Huffman, H.M., Personal Commun., U. S. Bur. Mines, Bartlesville, OK, 1948. [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

Kusano and Saito, 1975
Kusano, K.; Saito, Y., , Preprints 33rd Ann. Meeting Chem. Soc. Japan, Japan, 1975, 123. [all data]

Reid, 1972
Reid, Robert C., Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00, AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637 . [all data]

Osborne and Ginnings, 1947
Osborne, Nathan S.; Ginnings, Defoe C., Measurements of heat of vaporization and heat capacity of a number of hydrocarbons, J. RES. NATL. BUR. STAN., 1947, 39, 5, 453-17, https://doi.org/10.6028/jres.039.031 . [all data]

Osborne and Ginnings, 1947, 2
Osborne, N.S.; Ginnings, D.C., Measurements of heat of vaporization and heat capacity of a number of hydrocarbons, J. Res. NBS, 1947, 39, 453-477. [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]

McCullough, Person, et al., 1951
McCullough, J.P.; Person, W.B.; Spitzer, Ralph, The Heats of Vaporization and Vapor Heat Capacities of Some Dimethylcyclohexanes 1, J. Am. Chem. Soc., 1951, 73, 9, 4069-4071, https://doi.org/10.1021/ja01153a003 . [all data]

Willingham, Taylor, et al., 1945
Willingham, C.B.; Taylor, W.J.; Pignocco, J.M.; Rossini, F.D., Vapor pressures and boiling points of some paraffin, alkylcyclopentane, alkylcyclohexane, and alkylbenzene hydrocarbons, J. RES. NATL. BUR. STAN., 1945, 35, 3, 219-17, https://doi.org/10.6028/jres.035.009 . [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Mann, 1968
Mann, G., Conformation and physical data of alkanes and cyclanes. IV. Conformation energy of gauche-anticonformers, Tetrahedron, 1968, 24, 6495-65. [all data]

Herzschuh and Sicker, 1981
Herzschuh, R.; Sicker, A., Stereochemische einflusse auf die ionisations- und auftrittsenergien cis/trans-isomerer dimethylcycloalkane, Z. Chem., 1981, 21, 409. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References