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

Tri-t-butylmethane

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, 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
Deltafgas-56.2 ± 1.0kcal/molCcbVerevkin, Nolke, et al., 1997 
Deltafgas-56.4 ± 0.6kcal/molCcbFlamm-ter Meer, Beckhaus, et al., 1986 

Condensed phase thermochemistry data

Go To: Top, Gas 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:
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
Deltafsolid-69.8 ± 1.0kcal/molCcbVerevkin, Nolke, et al., 1997ALS
Deltafsolid-58.3 ± 0.6kcal/molCcbFlamm-ter Meer, Beckhaus, et al., 1986ALS
Quantity Value Units Method Reference Comment
Deltacsolid-2109.2 ± 1.0kcal/molCcbVerevkin, Nolke, et al., 1997Corresponding «DELTA»fsolid = -69.86 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacsolid-2120.83 ± 0.64kcal/molCcbFlamm-ter Meer, Beckhaus, et al., 1986Corresponding «DELTA»fsolid = -58.25 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of solid

Cp,solid (cal/mol*K) Temperature (K) Reference Comment
84.80298.15Meer, Beckhaus, et al., 1986DH

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:
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Deltasub13.2kcal/molCGC-DSCChickos, Hesse, et al., 1998AC
Deltasub13.63 ± 0.10kcal/molVVerevkin, Nolke, et al., 1997ALS
Deltasub13.6kcal/molN/AVerevkin, Nolke, et al., 1997DRB
Deltasub1.84 ± 0.02kcal/molVFlamm-ter Meer, Beckhaus, et al., 1986ALS
Deltasub1.9kcal/molN/AFlamm-ter Meer, Beckhaus, et al., 1986DRB

Enthalpy of sublimation

DeltasubH (kcal/mol) Temperature (K) Method Reference Comment
13.6 ± 0.1288.TVerevkin, Nolke, et al., 1997Based on data from 265. - 319. K.; AC
13.8 ± 0.67290.HSAChickos, Hesse, et al., 1995Based on data from 273. - 306. K.; AC
1.8 ± 0.02311.N/AMeer, Beckhaus, et al., 1986Based on data from 295. - 330. K.; AC

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
0.844358.2Meer, Beckhaus, et al., 1986AC

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.

Verevkin, Nolke, et al., 1997
Verevkin, S.P.; Nolke, M.; Beckhaus, H.D.; Ruchardt, C., Enthalpies of formation of hexaethylethane, octamethylhexane, and tri-tert-butylmethane. Extremely strained hydrocarbons, J. Org. Chem., 1997, 62, 4683-4686. [all data]

Flamm-ter Meer, Beckhaus, et al., 1986
Flamm-ter Meer, M.A.; Beckhaus, H.D.; Ruchardt, C., Thermolabile kohlenwasserstoffe. XXIX. Verbrennungsenthalpie und sublimationsenthalpie von tri-tert-butylmethan, Thermochim. Acta, 1986, 107, 331-338. [all data]

Meer, Beckhaus, et al., 1986
Meer, M.A.F.-T.; Beckhaus, H.D.; Ruechardt, C., Thermally unstable hydrocarbons. XXIX. Heat of combustion and heat of sublimation of tri(tert-butyl)methane, Thermochim. Acta, 1986, 107, 331-338. [all data]

Chickos, Hesse, et al., 1998
Chickos, James; Hesse, Donald; Hosseini, Sarah; Nichols, Gary; Webb, Paul, Sublimation enthalpies at 298.15K using correlation gas chromatography and differential scanning calorimetry measurements, Thermochimica Acta, 1998, 313, 2, 101-110, https://doi.org/10.1016/S0040-6031(97)00432-2 . [all data]

Chickos, Hesse, et al., 1995
Chickos, James S.; Hesse, Donald G.; Hosseini, Sarah; Liebman, Joel F.; David Mendenhall, G.; Verevkin, Sergej P.; Rakus, Klaus; Beckhaus, Hans-Dieter; Rüchardt, Christoph, Enthalpies of vaporization of some highly branched hydrocarbons, The Journal of Chemical Thermodynamics, 1995, 27, 6, 693-705, https://doi.org/10.1006/jcht.1995.0071 . [all data]


Notes

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