Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

Cyclohexane, 1,1-dimethyl-

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, 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: Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
gas87.220cal/mol*KN/AHuffman H.M., 1949 

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
9.11850.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].
13.88100.
19.51150.
25.22200.
34.49273.15
37.88298.15
38.15300.
51.63400.
63.58500.
73.57600.
81.91700.
88.91800.
94.89900.
100.01000.
104.31100.
108.11200.
111.31300.
114.11400.
116.51500.
121.11750.
124.52000.
126.92250.
128.72500.
130.12750.
131.13000.

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry 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 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
Deltacliquid-1246.65 ± 0.45kcal/molCcbJohnson, Prosen, et al., 1947Corresponding «DELTA»fliquid = -52.28 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-1252.7kcal/molCcbZubova, 1901Corresponding «DELTA»fliquid = -46.2 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid63.870cal/mol*KN/AHuffman, Todd, et al., 1949DH

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
50.010298.15Huffman, Todd, et al., 1949T = 12 to 310 K.; DH

Reaction thermochemistry 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 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

Hydrogen + Cyclohexene, 4,4-dimethyl- = Cyclohexane, 1,1-dimethyl-

By formula: H2 + C8H14 = C8H16

Quantity Value Units Method Reference Comment
Deltar-26.62 ± 0.12kcal/molChydTurner, Jarrett, et al., 1973liquid phase; solvent: Acetic acid

Hydrogen + 3,3-Dimethylcyclohexene = Cyclohexane, 1,1-dimethyl-

By formula: H2 + C8H14 = C8H16

Quantity Value Units Method Reference Comment
Deltar-27.66 ± 0.16kcal/molChydTurner, Jarrett, et al., 1973liquid phase; solvent: Acetic acid

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry 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]

Zubova, 1901
Zubova, P., Data about heat of combustion of compound cycle structure, Zh. Fiz. Khim., 1901, 33, 708-722. [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]

Turner, Jarrett, et al., 1973
Turner, R.B.; Jarrett, A.D.; Goebel, P.; Mallon, B.J., Heats of hydrogenation. 9. Cyclic acetylenes and some miscellaneous olefins, J. Am. Chem. Soc., 1973, 95, 790-792. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, References