return to home page

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

All data (experiment and calculated) in the CCCBDB for HNCO (Isocyanic acid)

Other names
Carbimide; Hydrogen isocyanate; Isocyanic acid; nitrosyl hydride;
INChI
InChI=1/CHNO/c2-1-3/h2H

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   277  
Energy 298.15K   262  
Atomization Enthalpy 298.15K x254x
Atomization Enthalpy 0K x254x
Entropy (298.15K) entropy x221x
Entropy at any temperature   221  
Integrated Heat Capacity integrated heat capacity x221x
Heat Capacity (Cp) Heat capacity x221x
Nuclear Repulsion Energy   234  
HOMO-LUMO Energies HOMO energies   220  
Barriers to Internal Rotation internal rotation  0 
Geometries Cartesians x191  
Internal Coordinates bond lengths bond angles x191x
Products of moments of inertia moments of inertia x209x
Rotational Constants rotational constants x215x
Point Group  216 
Vibrations Vibrational Frequencies vibrations x214x
Vibrational Intensities  207 
Zero-point energies x214x
Vibrational scaling factors x
Anharmonic frequencies and constants   4  
Electronic States Electronic states x 0  
Electrostatics Atom charges   167  
Dipole dipole x155x
Quadrupole quadrupole  149 
Polarizability polarizability  132 
Other results Spin   0  
Number of basis functions   31  
Diagnostics   5  
Conformations   1