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All results from a given calculation for C3H4N2 (4H-Imidazole)

using model chemistry: CCD/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-225.770417
Energy at 298.15K 
HF Energy-224.877293
Nuclear repulsion energy161.043464
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 CCD/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCD/aug-cc-pVTZ
ABC
0.32183 0.29433 0.15825

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.198 0.350 0.000
C2 0.000 1.136 0.000
N3 1.111 0.508 0.000
C4 0.735 -0.899 0.000
C5 -0.763 -0.855 0.000
H6 -0.077 2.213 0.000
H7 1.140 -1.401 0.881
H8 1.140 -1.401 -0.881
H9 -1.426 -1.709 0.000

Atom - Atom Distances (Å)
  N1 C2 N3 C4 C5 H6 H7 H8 H9
N11.43282.31392.30081.28082.17443.05113.05112.0712
C21.43281.27562.16342.13181.07992.91782.91783.1823
N32.31391.27561.45672.31662.07762.10322.10323.3692
C42.30082.16341.45671.49783.21611.09231.09232.3076
C51.28082.13182.31661.49783.14352.16702.16701.0816
H62.17441.07992.07763.21613.14353.91423.91424.1475
H73.05112.91782.10321.09232.16703.91421.76212.7310
H83.05112.91782.10321.09232.16703.91421.76212.7310
H92.07123.18233.36922.30761.08164.14752.73102.7310

picture of 4H-Imidazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 N3 117.250 N1 C2 H6 119.187
N1 C5 C4 111.556 N1 C5 H9 122.283
C2 N1 C5 103.411 C2 N3 C4 104.514
N3 C2 H6 123.563 N3 C4 C5 103.268
N3 C4 H7 110.385 N3 C4 H8 110.385
C4 C5 H9 126.161 C5 C4 H7 112.633
C5 C4 H8 112.633 H7 C4 H8 107.533
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability