return to home page

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

All data (experiment and calculated) in the CCCBDB for C2H2O2 (Ethanedial)

Other names
1,2-Ethanedione; Biformal; Biformyl; Diformal; Diformyl; Ethandial; Ethane-1,2-dione; Ethanedial; Ethanedione; Glyoxal; Glyoxal aldehyde; Glyoxylaldehyde; Oxal; Oxalaldehyde;
INChI
InChI=1/C2H2O2/c3-1-2-4/h1-2H

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   238  
Energy 298.15K   226  
Atomization Enthalpy 298.15K x220x
Atomization Enthalpy 0K x221x
Entropy (298.15K) entropy x194x
Entropy at any temperature   194  
Integrated Heat Capacity integrated heat capacity x193x
Heat Capacity (Cp) Heat capacity x193x
Nuclear Repulsion Energy   197  
HOMO-LUMO Energies HOMO energies   191  
Barriers to Internal Rotation internal rotation x14x
Geometries Cartesians x170  
Internal Coordinates bond lengths bond angles x170x
Products of moments of inertia moments of inertia x185x
Rotational Constants rotational constants x189x
Point Group  188 
Vibrations Vibrational Frequencies vibrations x188x
Vibrational Intensities  184 
Zero-point energies x188x
Vibrational scaling factors x
Anharmonic frequencies and constants   3  
Electronic States Electronic states x 0  
Electrostatics Atom charges   157  
Dipole dipole  155 
Quadrupole quadrupole  151 
Polarizability polarizability  134 
Other results Spin   11  
Number of basis functions   27  
Diagnostics   5  
Conformations   1