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All results from a given calculation for C3H4N2 (2H-Imidazole)

using model chemistry: CCSD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD/cc-pVTZ
 hartrees
Energy at 0K-225.690090
Energy at 298.15K 
HF Energy-224.804814
Nuclear repulsion energy166.924296
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CCSD/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD/cc-pVTZ
ABC
0.36234 0.30514 0.17105

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.203
N2 0.000 0.997 0.279
N3 0.000 -0.997 0.279
C4 0.000 0.728 -0.944
C5 0.000 -0.728 -0.944
H6 -0.893 0.000 1.826
H7 0.893 0.000 1.826
H8 0.000 1.470 -1.726
H9 0.000 -1.470 -1.726

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8 H9
C11.35891.35892.26652.26651.08871.08873.27653.2765
N21.35891.99411.25242.11472.04512.04512.06003.1792
N31.35891.99412.11471.25242.04512.04513.17922.0600
C42.26651.25242.11471.45602.99952.99951.07802.3331
C52.26652.11471.25241.45602.99952.99952.33311.0780
H61.08872.04512.04512.99952.99951.78563.94593.9459
H71.08872.04512.04512.99952.99951.78563.94593.9459
H83.27652.06003.17921.07802.33313.94593.94592.9404
H93.27653.17922.06002.33311.07803.94593.94592.9404

picture of 2H-Imidazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C4 120.394 C1 N3 C5 120.394
N2 C1 N3 94.402 N2 C1 H6 112.881
N2 C1 H7 112.881 N2 C4 C5 102.405
N2 C4 H8 124.084 N3 C1 H6 112.881
N3 C1 H7 112.881 N3 C5 C4 102.405
N3 C5 H9 124.084 C4 C5 H9 133.511
C5 C4 H8 133.511 H6 C1 H7 110.181
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability