return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All data (experiment and calculated) in the CCCBDB for C6H14 (Pentane, 2-methyl-)

1907021335
Other names
2-Methylpentane; Isohexane; Methyl pentane; Pentane, 2-methyl-;
INChI
InChI=1S/C6H14/c1-4-5-6(2)3/h6H,4-5H2,1-3H3

An "x" indicates that data is available. A number indicates how many calculations have been completed.
Property Experiment Calculated Comparison
Energies
Entropies
Enthalpy 298.15K enthalpy of formation x    
Enthalpy 0K enthalpy of formation x    
Energy 0K   220  
Energy 298.15K   208  
Atomization Enthalpy 298.15K x149x
Atomization Enthalpy 0K x153x
Entropy (298.15K) entropy x142x
Entropy at any temperature   142  
Integrated Heat Capacity integrated heat capacity x142x
Heat Capacity (Cp) Heat capacity x142x
Nuclear Repulsion Energy   207  
HOMO-LUMO Energies HOMO energies   134  
Barriers to Internal Rotation internal rotation  0 
Geometries Cartesians  178  
Internal Coordinates bond lengths bond angles  177 
Products of moments of inertia moments of inertia  200 
Rotational Constants rotational constants  205 
Point Group  209 
Vibrations Vibrational Frequencies vibrations  197 
Vibrational Intensities  206 
Zero-point energies  197 
Vibrational scaling factors  
Anharmonic frequencies and constants   1  
Raman frequencies and intensities   5  
Electronic States Electronic states x 0  
Electrostatics Atom charges   179  
Dipole dipole  183 
Quadrupole quadrupole  174 
Polarizability polarizability  167 
Other results Spin   0  
Number of basis functions   5  
Conformations   1