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

using model chemistry: B2PLYP=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 B2PLYP=FULL/6-31G
 hartrees
Energy at 0K-225.711088
Energy at 298.15K-225.717141
HF Energy-225.547116
Nuclear repulsion energy165.195431
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=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 3309 3309 9.41      
2 A1 3120 3120 0.79      
3 A1 1672 1672 26.26      
4 A1 1481 1481 18.74      
5 A1 1386 1386 2.47      
6 A1 1260 1260 7.72      
7 A1 1044 1044 8.01      
8 A1 940 940 8.31      
9 A2 1171 1171 0.00      
10 A2 894 894 0.00      
11 A2 561 561 0.00      
12 B1 3169 3169 0.10      
13 B1 1058 1058 16.13      
14 B1 831 831 11.36      
15 B1 389 389 51.38      
16 B2 3292 3292 7.91      
17 B2 1727 1727 0.23      
18 B2 1362 1362 11.65      
19 B2 1282 1282 3.16      
20 B2 1084 1084 37.18      
21 B2 963 963 78.02      

Unscaled Zero Point Vibrational Energy (zpe) 15996.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15996.7 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=FULL/6-31G
ABC
0.35959 0.29537 0.16734

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.224
N2 0.000 0.998 0.284
N3 0.000 -0.998 0.284
C4 0.000 0.735 -0.962
C5 0.000 -0.735 -0.962
H6 -0.893 0.000 1.852
H7 0.893 0.000 1.852
H8 0.000 1.478 -1.743
H9 0.000 -1.478 -1.743

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8 H9
C11.37051.37052.30552.30551.09211.09213.31473.3147
N21.37051.99631.27362.13462.06192.06192.08383.2006
N31.37051.99632.13461.27362.06192.06193.20062.0838
C42.30551.27362.13461.47003.04223.04221.07852.3471
C52.30552.13461.27361.47003.04223.04222.34711.0785
H61.09212.06192.06193.04223.04221.78623.98873.9887
H71.09212.06192.06193.04223.04221.78623.98873.9887
H83.31472.08383.20061.07852.34713.98873.98872.9562
H93.31473.20062.08382.34711.07853.98873.98872.9562

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 121.331 C1 N3 C5 121.331
N2 C1 N3 93.490 N2 C1 H6 113.227
N2 C1 H7 113.227 N2 C4 C5 101.924
N2 C4 H8 124.527 N3 C1 H6 113.227
N3 C1 H7 113.227 N3 C5 C4 101.924
N3 C5 H9 124.527 C4 C5 H9 133.550
C5 C4 H8 133.550 H6 C1 H7 109.726
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability