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

using model chemistry: CCSD=FULL/6-311+G(3df,2p)

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=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-225.807164
Energy at 298.15K 
HF Energy-224.804452
Nuclear repulsion energy167.144377
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=FULL/6-311+G(3df,2p)
Rotational Constants (cm-1) from geometry optimized at CCSD=FULL/6-311+G(3df,2p)
ABC
0.36315 0.30615 0.17154

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.200
N2 0.000 0.997 0.279
N3 0.000 -0.997 0.279
C4 0.000 0.726 -0.942
C5 0.000 -0.726 -0.942
H6 -0.892 0.000 1.824
H7 0.892 0.000 1.824
H8 0.000 1.467 -1.725
H9 0.000 -1.467 -1.725

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8 H9
C11.35711.35712.26172.26171.08861.08863.27193.2719
N21.35711.99371.25082.11172.04342.04342.05823.1756
N31.35711.99372.11171.25082.04342.04343.17562.0582
C42.26171.25082.11171.45202.99542.99541.07762.3281
C52.26172.11171.25081.45202.99542.99542.32811.0776
H61.08862.04342.04342.99542.99541.78453.94203.9420
H71.08862.04342.04342.99542.99541.78453.94203.9420
H83.27192.05823.17561.07762.32813.94203.94202.9332
H93.27193.17562.05822.32811.07763.94203.94202.9332

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 120.224 C1 N3 C5 120.224
N2 C1 N3 94.536 N2 C1 H6 112.878
N2 C1 H7 112.878 N2 C4 C5 102.507
N2 C4 H8 124.080 N3 C1 H6 112.878
N3 C1 H7 112.878 N3 C5 C4 102.507
N3 C5 H9 124.080 C4 C5 H9 133.412
C5 C4 H8 133.412 H6 C1 H7 110.092
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability