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

using model chemistry: QCISD(T)/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-225.555575
Energy at 298.15K 
HF Energy-224.752260
Nuclear repulsion energy165.118499
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 QCISD(T)/aug-cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/aug-cc-pVDZ
ABC
0.35835 0.29601 0.16744

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.220
N2 0.000 0.998 0.285
N3 0.000 -0.998 0.285
C4 0.000 0.735 -0.961
C5 0.000 -0.735 -0.961
H6 -0.907 0.000 1.848
H7 0.907 0.000 1.848
H8 0.000 1.498 -1.743
H9 0.000 -1.498 -1.743

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8 H9
C11.36711.36712.30112.30111.10301.10303.31993.3199
N21.36711.99571.27342.13462.06392.06392.08903.2162
N31.36711.99572.13461.27342.06392.06393.21622.0890
C42.30111.27342.13461.47053.04173.04171.09262.3665
C52.30112.13461.27341.47053.04173.04172.36651.0926
H61.10302.06392.06393.04173.04171.81333.99523.9952
H71.10302.06392.06393.04173.04171.81333.99523.9952
H83.31992.08903.21621.09262.36653.99523.99522.9964
H93.31993.21622.08902.36651.09263.99523.99522.9964

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 121.221 C1 N3 C5 121.221
N2 C1 N3 93.758 N2 C1 H6 112.912
N2 C1 H7 112.912 N2 C4 C5 101.900
N2 C4 H8 123.813 N3 C1 H6 112.912
N3 C1 H7 112.912 N3 C5 C4 101.900
N3 C5 H9 123.813 C4 C5 H9 134.287
C5 C4 H8 134.287 H6 C1 H7 110.560
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability