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

using model chemistry: MP3=FULL/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-225.527290
Energy at 298.15K-225.533303
HF Energy-224.754850
Nuclear repulsion energy165.904218
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/aug-cc-pVDZ
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 3296 3296 9.50      
2 A1 3123 3123 0.03      
3 A1 1738 1738 21.90      
4 A1 1446 1446 0.19      
5 A1 1412 1412 24.54      
6 A1 1278 1278 2.66      
7 A1 1051 1051 0.31      
8 A1 948 948 11.94      
9 A2 1162 1162 0.00      
10 A2 903 903 0.00      
11 A2 535 535 0.00      
12 B1 3175 3175 0.25      
13 B1 1019 1019 24.60      
14 B1 827 827 5.70      
15 B1 347 347 34.32      
16 B2 3279 3279 3.08      
17 B2 1805 1805 0.04      
18 B2 1434 1434 36.17      
19 B2 1255 1255 3.09      
20 B2 1096 1096 30.50      
21 B2 942 942 58.70      

Unscaled Zero Point Vibrational Energy (zpe) 16034.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16034.1 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/aug-cc-pVDZ
ABC
0.36003 0.30003 0.16904

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.212
N2 0.000 0.998 0.282
N3 0.000 -0.998 0.282
C4 0.000 0.732 -0.953
C5 0.000 -0.732 -0.953
H6 -0.902 0.000 1.839
H7 0.902 0.000 1.839
H8 0.000 1.486 -1.737
H9 0.000 -1.486 -1.737

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8 H9
C11.36361.36362.28522.28521.09871.09873.30243.3024
N21.36361.99511.26332.12532.05732.05732.07763.2011
N31.36361.99512.12531.26332.05732.05733.20112.0776
C42.28521.26332.12531.46403.02393.02391.08812.3529
C52.28522.12531.26331.46403.02393.02392.35291.0881
H61.09872.05732.05733.02393.02391.80463.97633.9763
H71.09872.05732.05733.02393.02391.80463.97633.9763
H83.30242.07763.20111.08812.35293.97633.97632.9727
H93.30243.20112.07762.35291.08813.97633.97632.9727

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 120.853 C1 N3 C5 120.853
N2 C1 N3 94.028 N2 C1 H6 112.895
N2 C1 H7 112.895 N2 C4 C5 102.133
N2 C4 H8 123.980 N3 C1 H6 112.895
N3 C1 H7 112.895 N3 C5 C4 102.133
N3 C5 H9 123.980 C4 C5 H9 133.888
C5 C4 H8 133.888 H6 C1 H7 110.415
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability