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Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology |
| You are here: Home > All data for one species | |
| Other names |
|---|
| 2,2-Dimethylpropane; 1,1,1-Trimethylethane; Neo-C5H12; Neopentane; Propane, 2,2-dimethyl-; tert-Pentane; Tetramethylcarbon; Tetramethylmethane; |
| INChI |
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InChI=1S/C5H12/c1-5(2,3)4/h1-4H3 |
| Property | Experiment | Calculated | Comparison | |
|---|---|---|---|---|
| Energies Entropies |
Enthalpy 298.15K ![]() |
x | ||
Enthalpy 0K ![]() |
x | |||
| Energy 0K | 234 | |||
| Energy 298.15K | 219 | |||
| Atomization Enthalpy 298.15K | x | 162 | x | |
| Atomization Enthalpy 0K | x | 171 | x | |
Entropy (298.15K) ![]() |
x | 154 | x | |
| Entropy at any temperature | 154 | |||
Integrated Heat Capacity ![]() |
x | 154 | x | |
Heat Capacity (Cp) ![]() |
x | 154 | x | |
| Nuclear Repulsion Energy | 213 | |||
HOMO-LUMO Energies ![]() |
210 | |||
Barriers to Internal Rotation ![]() |
325 | |||
| Geometries | Cartesians | 194 | ||
Internal Coordinates ![]() |
x | 193 | x | |
Products of moments of inertia ![]() |
213 | |||
Rotational Constants ![]() |
218 | |||
| Point Group | 219 | |||
| Vibrations | Vibrational Frequencies ![]() |
fun. | 210 | x |
| Vibrational Intensities | 214 | |||
| Zero-point energies | x | 210 | x | |
| Vibrational scaling factors | x | |||
| Anharmonic frequencies and constants | ||||
| Raman frequencies and intensities | 5 | |||
| Electronic States | Electronic states | x | 0 | |
| Electrostatics | Atom charges | 181 | ||
Dipole ![]() |
x | 188 | x | |
Quadrupole ![]() |
177 | |||
Polarizability ![]() |
x | 169 | x | |
| Other results | Spin | 0 | ||
| Number of basis functions | 7 | |||
| Conformations | 1 | |||