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 C3H4N2 (1H-Pyrazole)

1907021335
Other names
1,2-Diazole; 1H-Pyrazole; Pyrazole;
INChI
InChI=1S/C3H4N2/c1-2-4-5-3-1/h1-3H,(H,4,5)

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      
Energy 0K   240  
Energy 298.15K   229  
Atomization Enthalpy 298.15K x171x
Atomization Enthalpy 0K  175 
Entropy (298.15K) entropy  162 
Entropy at any temperature   162  
Integrated Heat Capacity integrated heat capacity  162 
Heat Capacity (Cp) Heat capacity  162 
Nuclear Repulsion Energy   141  
HOMO-LUMO Energies HOMO energies   212  
Barriers to Internal Rotation internal rotation  0 
Geometries Cartesians x188  
Internal Coordinates bond lengths bond angles x187x
Products of moments of inertia moments of inertia x210x
Rotational Constants rotational constants x214x
Point Group  215 
Vibrations Vibrational Frequencies vibrations fun. 213x
Vibrational Intensities  227 
Zero-point energies x213x
Vibrational scaling factors x
Anharmonic frequencies and constants   1  
Raman frequencies and intensities   5  
Electronic States Electronic states x 0  
Electrostatics Atom charges   180  
Dipole dipole x187x
Quadrupole quadrupole  179 
Polarizability polarizability x165x
Other results Spin   0  
Number of basis functions   6  
Conformations   1