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

using model chemistry: CCD/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 CCD/6-311G**
 hartrees
Energy at 0K-225.544171
Energy at 298.15K-225.550195
HF Energy-224.776206
Nuclear repulsion energy166.520591
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 CCD/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 3268 3122 11.43      
2 A1 3113 2973 0.54      
3 A1 1751 1672 22.87      
4 A1 1465 1399 4.64      
5 A1 1423 1359 13.48      
6 A1 1276 1219 3.52      
7 A1 1051 1004 1.27      
8 A1 948 905 15.27      
9 A2 1175 1123 0.00      
10 A2 907 867 0.00      
11 A2 539 515 0.00      
12 B1 3161 3019 0.16      
13 B1 1042 995 23.15      
14 B1 834 796 6.42      
15 B1 348 332 34.41      
16 B2 3253 3107 5.67      
17 B2 1809 1728 0.00      
18 B2 1441 1376 37.96      
19 B2 1267 1211 3.26      
20 B2 1104 1055 30.96      
21 B2 948 905 61.13      

Unscaled Zero Point Vibrational Energy (zpe) 16062.1 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 15340.9 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 CCD/6-311G**
ABC
0.36105 0.30333 0.17026

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

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 0.280
N3 0.000 -0.997 0.280
C4 0.000 0.731 -0.947
C5 0.000 -0.731 -0.947
H6 -0.898 0.000 1.830
H7 0.898 0.000 1.830
H8 0.000 1.478 -1.731
H9 0.000 -1.478 -1.731

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8 H9
C11.36101.36102.27342.27341.09371.09373.28763.2876
N21.36101.99451.25532.11902.05032.05032.06733.1887
N31.36101.99452.11901.25532.05032.05033.18872.0673
C42.27341.25532.11901.46113.00843.00841.08302.3432
C52.27342.11901.25531.46113.00843.00842.34321.0830
H61.09372.05032.05033.00843.00841.79673.95843.9584
H71.09372.05032.05033.00843.00841.79673.95843.9584
H83.28762.06733.18871.08302.34323.95843.95842.9552
H93.28763.18872.06732.34321.08303.95843.95842.9552

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 120.616 C1 N3 C5 120.616
N2 C1 N3 94.233 N2 C1 H6 112.837
N2 C1 H7 112.837 N2 C4 C5 102.267
N2 C4 H8 124.117 N3 C1 H6 112.837
N3 C1 H7 112.837 N3 C5 C4 102.267
N3 C5 H9 124.117 C4 C5 H9 133.616
C5 C4 H8 133.616 H6 C1 H7 110.454
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability