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

using model chemistry: MP3=FULL/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 MP3=FULL/6-311G**
 hartrees
Energy at 0K-225.640029
Energy at 298.15K-225.646069
HF Energy-224.776652
Nuclear repulsion energy166.762622
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/6-311G**
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 3295 3295 10.14      
2 A1 3137 3137 0.14      
3 A1 1759 1759 20.57      
4 A1 1464 1464 3.68      
5 A1 1428 1428 16.74      
6 A1 1283 1283 3.76      
7 A1 1058 1058 1.09      
8 A1 958 958 15.13      
9 A2 1176 1176 0.00      
10 A2 913 913 0.00      
11 A2 543 543 0.00      
12 B1 3184 3184 0.02      
13 B1 1042 1042 23.70      
14 B1 839 839 6.27      
15 B1 353 353 34.88      
16 B2 3280 3280 5.38      
17 B2 1823 1823 0.00      
18 B2 1448 1448 37.18      
19 B2 1271 1271 2.56      
20 B2 1109 1109 30.48      
21 B2 952 952 64.24      

Unscaled Zero Point Vibrational Energy (zpe) 16156.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16156.6 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/6-311G**
ABC
0.36184 0.30444 0.17076

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.204
N2 0.000 0.997 0.280
N3 0.000 -0.997 0.280
C4 0.000 0.729 -0.945
C5 0.000 -0.729 -0.945
H6 -0.897 0.000 1.827
H7 0.897 0.000 1.827
H8 0.000 1.474 -1.728
H9 0.000 -1.474 -1.728

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8 H9
C11.35941.35942.26882.26881.09201.09203.28143.2814
N21.35941.99421.25362.11622.04752.04752.06373.1838
N31.35941.99422.11621.25362.04752.04753.18382.0637
C42.26881.25362.11621.45753.00313.00311.08102.3376
C52.26882.11621.25361.45753.00313.00312.33761.0810
H61.09202.04752.04753.00313.00311.79313.95163.9516
H71.09202.04752.04753.00313.00311.79313.95163.9516
H83.28142.06373.18381.08102.33763.95163.95162.9474
H93.28143.18382.06372.33761.08103.95163.95162.9474

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 120.460 C1 N3 C5 120.460
N2 C1 N3 94.358 N2 C1 H6 112.831
N2 C1 H7 112.831 N2 C4 C5 102.361
N2 C4 H8 124.079 N3 C1 H6 112.831
N3 C1 H7 112.831 N3 C5 C4 102.361
N3 C5 H9 124.079 C4 C5 H9 133.561
C5 C4 H8 133.561 H6 C1 H7 110.380
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability