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

using model chemistry: MP4=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 MP4=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-225.858550
Energy at 298.15K-225.864537
HF Energy-224.802634
Nuclear repulsion energy166.555998
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 MP4=FULL/6-311+G(3df,2p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3246 3246        
2 A1 3084 3084        
3 A1 1662 1662        
4 A1 1424 1424        
5 A1 1391 1391        
6 A1 1251 1251        
7 A1 1034 1034        
8 A1 923 923        
9 A2 1156 1156        
10 A2 901 901        
11 A2 536 536        
12 B1 3132 3132        
13 B1 1010 1010        
14 B1 816 816        
15 B1 353 353        
16 B2 3233 3233        
17 B2 1724 1724        
18 B2 1391 1391        
19 B2 1246 1246        
20 B2 1084 1084        
21 B2 929 929        

Unscaled Zero Point Vibrational Energy (zpe) 15762.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15762.7 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP4=FULL/6-311+G(3df,2p)
ABC
0.36245 0.30283 0.17036

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.205
N2 0.000 0.997 0.283
N3 0.000 -0.997 0.283
C4 0.000 0.727 -0.949
C5 0.000 -0.727 -0.949
H6 -0.895 0.000 1.830
H7 0.895 0.000 1.830
H8 0.000 1.475 -1.728
H9 0.000 -1.475 -1.728

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8 H9
C11.35761.35762.27332.27331.09141.09143.28283.2828
N21.35761.99381.26172.11892.04602.04602.06713.1869
N31.35761.99382.11891.26172.04602.04603.18692.0671
C42.27331.26172.11891.45353.00863.00861.08012.3357
C52.27332.11891.26171.45353.00863.00862.33571.0801
H61.09142.04602.04603.00863.00861.78933.95393.9539
H71.09142.04602.04603.00863.00861.78933.95393.9539
H83.28282.06713.18691.08012.33573.95393.95392.9507
H93.28283.18692.06712.33571.08013.95393.95392.9507

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 120.386 C1 N3 C5 120.386
N2 C1 N3 94.498 N2 C1 H6 112.879
N2 C1 H7 112.879 N2 C4 C5 102.365
N2 C4 H8 123.759 N3 C1 H6 112.879
N3 C1 H7 112.879 N3 C5 C4 102.365
N3 C5 H9 123.759 C4 C5 H9 133.877
C5 C4 H8 133.877 H6 C1 H7 110.117
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability