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I.B.3. (II.A.2.)

All data (experiment and calculated) in the CCCBDB for C5H8 (1,2-Pentadiene)

Other names
1-Methyl-2,3-butadiene; 1,2-Pentadiene; Ethylallene; pentadiene; penta-1,2-diene;
INChI
InChI=1/C5H8/c1-3-5-4-2/h5H,1,4H2,2H3

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   184  
Energy 298.15K   171  
Atomization Enthalpy 298.15K x167x
Atomization Enthalpy 0K x172x
Entropy (298.15K) entropy x163x
Entropy at any temperature   163  
Integrated Heat Capacity integrated heat capacity x162x
Heat Capacity (Cp) Heat capacity x162x
Nuclear Repulsion Energy   179  
HOMO-LUMO Energies HOMO energies   74  
Barriers to Internal Rotation internal rotation  0 
Geometries Cartesians  152  
Internal Coordinates bond lengths bond angles  152 
Products of moments of inertia moments of inertia  168 
Rotational Constants rotational constants  171 
Point Group  172 
Vibrations Vibrational Frequencies vibrations x174x
Vibrational Intensities  174 
Zero-point energies  174 
Vibrational scaling factors  
Anharmonic frequencies and constants   3  
Electronic States Electronic states x 0  
Electrostatics Atom charges   150  
Dipole dipole  150 
Quadrupole quadrupole  148 
Polarizability polarizability  130 
Other results Spin   0  
Number of basis functions   23  
Diagnostics   4  
Conformations   1