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

using model chemistry: MP4/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4/6-311G**
 hartrees
Energy at 0K-225.588240
Energy at 298.15K-225.594190
HF Energy-224.774082
Nuclear repulsion energy165.887180
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 MP4/6-311G**
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 3240 3142        
2 A1 3086 2993        
3 A1 1674 1623        
4 A1 1438 1395        
5 A1 1389 1347        
6 A1 1254 1216        
7 A1 1028 997        
8 A1 914 886        
9 A2 1150 1115        
10 A2 870 843        
11 A2 526 510        
12 B1 3136 3041        
13 B1 1020 989        
14 B1 809 784        
15 B1 339 328        
16 B2 3225 3128        
17 B2 1726 1674        
18 B2 1393 1351        
19 B2 1238 1200        
20 B2 1084 1051        
21 B2 928 900        

Unscaled Zero Point Vibrational Energy (zpe) 15732.5 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 15255.8 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 MP4/6-311G**
ABC
0.35984 0.30001 0.16897

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.211
N2 0.000 0.997 0.284
N3 0.000 -0.997 0.284
C4 0.000 0.733 -0.954
C5 0.000 -0.733 -0.954
H6 -0.901 0.000 1.836
H7 0.901 0.000 1.836
H8 0.000 1.489 -1.733
H9 0.000 -1.489 -1.733

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8 H9
C11.36201.36202.28612.28611.09581.09583.29913.2991
N21.36201.99471.26592.12742.05272.05272.07563.2011
N31.36201.99472.12741.26592.05272.05273.20112.0756
C42.28611.26592.12741.46553.02163.02161.08522.3539
C52.28612.12741.26591.46553.02163.02162.35391.0852
H61.09582.05272.05273.02163.02161.80143.96993.9699
H71.09582.05272.05273.02163.02161.80143.96993.9699
H83.29912.07563.20111.08522.35393.96993.96992.9773
H93.29913.20112.07562.35391.08523.96993.96992.9773

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 120.857 C1 N3 C5 120.857
N2 C1 N3 94.155 N2 C1 H6 112.822
N2 C1 H7 112.822 N2 C4 C5 102.066
N2 C4 H8 123.783 N3 C1 H6 112.822
N3 C1 H7 112.822 N3 C5 C4 102.066
N3 C5 H9 123.783 C4 C5 H9 134.151
C5 C4 H8 134.151 H6 C1 H7 110.561
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability