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Summary
longprop
| IUPAC name | 2,2,3,3-tetramethylbutane | | | | Synonyms | 594-82-1, InChI=1S/C8H18/c1-7(2,3)8(4,5)6/h1-6H3, tetramethylbutane, hexamethylethane, 2233-tetramethylbutane, 2233-tetramethylbutan | | CAS number | 594-82-1 | | ChemSpider ID | 11185 | | PubChem ID | 11675 | | Molecular weight | 114.2285 Da | | Formula | C8H18 | | Multiplicity | 1 | | Point group | C1 | | Symmetry number | 1 | | Rotatable bonds | 1 | | StdInChi | InChI=1S/C8H18/c1-7(2,3)8(4,5)6/h1-6H3 |
Liquid properties
| Property | Unit | T (K) | Experiment | GAFF-ESP-2012 | OPLS | CGenFF | COSMO-RS | kowwin | GAFF-ESP | XlogP3 |
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| log kOW | | 298.15 | 4.051 | | | | | | | 3.702 | | | | 4.813 | | | | | | | |
Flexible models Hydrogen constrained All bonds constrained.
Gas properties
| Property | Unit | T (K) | Experiment | G2 | G3 | G4 | CBS-QB3 | W1BD | W1U | B3LYP/aug-cc-pVTZ | BS | CGenFF | GAFF-BCC-2018 | GAFF-ESP-2018 | AXpp | AXpg | AXps |
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| ΔHform | kJ/mol | 0 | | -177.54 | -178.14 | | | | | | | | | | | | | | ΔHform | kJ/mol | 298.15 | -225.65 | -234.04 | -234.64 | | | | | | | | | | | | | | | | -204.86 | | | | | | | | | | | | | | | | | | -226.07 | | | | | | | | | | | | | | | | | | -225.9±1.98 | | | | | | | | | | | | | | | | ΔGform | kJ/mol | 298.15 | 22.45 | 16.24 | 15.64 | | | | | | | | | | | | | | ΔSform | J/mol K | 298.15 | 0.05 | -839.14 | -839.14 | | | | | | | | | | | | | | S0 | J/mol K | 298.15 | 0.395 | 382.954 | 382.954 | | | | | | | | | | | | | | | | 390.586 | | | | | | | | | | | | | | | | CV | J/mol K | 298.15 | 183.3±3.79 | 162.54 | 162.54 | | | | | | | | | | | | |
References
- C. L. Yaws Yaws' Handbook of Properties for Environmental and Green Engineering, William Andrew Inc.: Beaumont, Texas (2008).
- T. Cheng and Y. Zhao and X. Li and F. Lin and Y. Xu and X. Zhang and Y. Li and R. Wang and L. Lai Computation of octanol- water partition coefficients by guiding an additive model with knowledge., J. Chem. Inf. Model. 47, 2140-2148 (2007).
- C. L. Yaws Yaws' Handbook of Properties for Aqueous Systems, William Andrew Inc.: Beaumont, Texas (2012).
- Mohammad M. Ghahremanpour and Paul J. van Maaren and David van der Spoel The Alexandria Library: A Quantum-Chemical Database of Molecular Properties for Force Field Development, Sci. Data 5, 180062 (2018). DOI
- R. L. Rowley and W. V. Wilding and J. L. Oscarson and Y. Yang and N. F. Giles Data Compilation of Pure Chemical Properties (Design Institute for Physical Properties, American Institute for Chemical Engineering, New York (2012).
- C. L. Yaws Yaws' Handbook of Thermodynamic Properties for Hydrocarbons and Chemicals, Knovel (2009).
- D. R. Lide CRC Handbook of Chemistry and Physics 90th edition, CRC Press: Cleveland, Ohio (2009).
- Knovel Knovel Critical Tables (2nd Edition), Knovel (2008).
- Mohammad M. Ghahremanpour and Paul J. van Maaren and Jonas C. Ditz and Roland Lindh and David van der Spoel Large-Scale Calculations of Gas Phase Thermochemistry: Enthalpy of Formation, Standard Entropy and Heat Capacity, J. Chem. Phys. 145, 114305 (2016). DOI
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