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

using model chemistry: MP3=FULL/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3=FULL/6-31G
 hartrees
Energy at 0K-225.093665
Energy at 298.15K-225.099680
HF Energy-224.599862
Nuclear repulsion energy164.784255
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 MP3=FULL/6-31G
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 3294 3294 7.59      
2 A1 3109 3109 0.12      
3 A1 1708 1708 26.36      
4 A1 1505 1505 14.95      
5 A1 1408 1408 3.41      
6 A1 1269 1269 6.09      
7 A1 1048 1048 7.48      
8 A1 965 965 9.23      
9 A2 1169 1169 0.00      
10 A2 811 811 0.00      
11 A2 547 547 0.00      
12 B1 3156 3156 0.05      
13 B1 1068 1068 18.93      
14 B1 797 797 15.33      
15 B1 378 378 49.18      
16 B2 3277 3277 7.27      
17 B2 1767 1767 0.65      
18 B2 1403 1403 12.38      
19 B2 1288 1288 3.40      
20 B2 1093 1093 34.70      
21 B2 976 976 68.58      

Unscaled Zero Point Vibrational Energy (zpe) 16017.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16017.5 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 MP3=FULL/6-31G
ABC
0.35812 0.29357 0.16651

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.230
N2 0.000 0.999 0.283
N3 0.000 -0.999 0.283
C4 0.000 0.738 -0.964
C5 0.000 -0.738 -0.964
H6 -0.898 0.000 1.857
H7 0.898 0.000 1.857
H8 0.000 1.486 -1.747
H9 0.000 -1.486 -1.747

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8 H9
C11.37561.37562.31432.31431.09591.09593.32673.3267
N21.37561.99711.27432.13812.06912.06912.08803.2084
N31.37561.99712.13811.27432.06912.06913.20842.0880
C42.31431.27432.13811.47603.05133.05131.08272.3576
C52.31432.13811.27431.47603.05133.05132.35761.0827
H61.09592.06912.06913.05133.05131.79674.00054.0005
H71.09592.06912.06913.05133.05131.79674.00054.0005
H83.32672.08803.20841.08272.35764.00054.00052.9716
H93.32673.20842.08802.35761.08274.00054.00052.9716

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 121.657 C1 N3 C5 121.657
N2 C1 N3 93.087 N2 C1 H6 113.199
N2 C1 H7 113.199 N2 C4 C5 101.799
N2 C4 H8 124.516 N3 C1 H6 113.199
N3 C1 H7 113.199 N3 C5 C4 101.799
N3 C5 H9 124.516 C4 C5 H9 133.685
C5 C4 H8 133.685 H6 C1 H7 110.120
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability