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

using model chemistry: B2PLYP=FULLultrafine/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULLultrafine/6-31+G**
 hartrees
Energy at 0K-225.913384
Energy at 298.15K 
HF Energy-225.664662
Nuclear repulsion energy166.452412
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 B2PLYP=FULLultrafine/6-31+G**
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 3282 3282 11.45      
2 A1 3106 3106 0.48      
3 A1 1700 1700 22.74      
4 A1 1438 1438 6.30      
5 A1 1407 1407 21.06      
6 A1 1265 1265 4.11      
7 A1 1046 1046 1.01      
8 A1 934 934 9.82      
9 A2 1156 1156 0.00      
10 A2 899 899 0.00      
11 A2 538 538 0.00      
12 B1 3152 3152 0.83      
13 B1 1020 1020 22.10      
14 B1 826 826 6.86      
15 B1 356 356 40.69      
16 B2 3268 3268 3.63      
17 B2 1768 1768 0.81      
18 B2 1402 1402 38.90      
19 B2 1259 1259 1.63      
20 B2 1091 1091 40.35      
21 B2 931 931 65.12      

Unscaled Zero Point Vibrational Energy (zpe) 15921.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15921.3 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 B2PLYP=FULLultrafine/6-31+G**
ABC
0.36268 0.30202 0.17015

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.206
N2 0.000 0.997 0.283
N3 0.000 -0.997 0.283
C4 0.000 0.726 -0.950
C5 0.000 -0.726 -0.950
H6 -0.894 0.000 1.835
H7 0.894 0.000 1.835
H8 0.000 1.473 -1.732
H9 0.000 -1.473 -1.732

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8 H9
C11.35871.35872.27552.27551.09261.09263.28623.2862
N21.35871.99411.26282.11922.04962.04962.07013.1872
N31.35871.99412.11921.26282.04962.04963.18722.0701
C42.27551.26282.11921.45253.01393.01391.08052.3336
C52.27552.11921.26281.45253.01393.01392.33361.0805
H61.09262.04962.04963.01393.01391.78713.96073.9607
H71.09262.04962.04963.01393.01391.78713.96073.9607
H83.28622.07013.18721.08052.33363.96073.96072.9452
H93.28623.18722.07012.33361.08053.96073.96072.9452

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 120.412 C1 N3 C5 120.412
N2 C1 N3 94.414 N2 C1 H6 113.014
N2 C1 H7 113.014 N2 C4 C5 102.381
N2 C4 H8 123.929 N3 C1 H6 113.014
N3 C1 H7 113.014 N3 C5 C4 102.381
N3 C5 H9 123.929 C4 C5 H9 133.690
C5 C4 H8 133.690 H6 C1 H7 109.732
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability