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All results from a given calculation for C3H4N2 (1H-Imidazole)

using model chemistry: B2PLYP=FULLultrafine/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULLultrafine/6-31G
 hartrees
Energy at 0K-225.824241
Energy at 298.15K 
HF Energy-225.656078
Nuclear repulsion energy161.354640
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=FULLultrafine/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 A' 3698 3698 51.52      
2 A' 3343 3343 1.92      
3 A' 3328 3328 2.15      
4 A' 3319 3319 2.01      
5 A' 1559 1559 18.66      
6 A' 1493 1493 10.92      
7 A' 1433 1433 16.29      
8 A' 1356 1356 10.78      
9 A' 1290 1290 2.67      
10 A' 1176 1176 0.84      
11 A' 1126 1126 12.32      
12 A' 1113 1113 13.24      
13 A' 1069 1069 32.42      
14 A' 956 956 3.07      
15 A' 921 921 8.39      
16 A" 867 867 8.06      
17 A" 804 804 32.71      
18 A" 739 739 27.28      
19 A" 679 679 0.97      
20 A" 651 651 90.98      
21 A" 622 622 91.63      

Unscaled Zero Point Vibrational Energy (zpe) 15770.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15770.1 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 B2PLYP=FULLultrafine/6-31G
ABC
0.31599 0.30779 0.15592

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.116 0.000
C2 -1.110 0.291 0.000
C3 1.132 0.300 0.000
N4 -0.751 -0.995 0.000
C5 0.652 -0.994 0.000
H6 -0.003 2.123 0.000
H7 -2.120 0.662 0.000
H8 2.131 0.701 0.000
H9 1.207 -1.916 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.38341.39542.24122.20851.00672.16832.17093.2638
C21.38342.24171.33472.18052.14071.07663.26663.1995
C31.39542.24172.28541.37962.14763.27211.07662.2174
N42.24121.33472.28541.40363.20672.14983.34432.1639
C52.20852.18051.37961.40363.18493.22952.24911.0764
H61.00672.14072.14763.20673.18492.57192.56444.2166
H72.16831.07663.27212.14983.22952.57194.25124.2094
H82.17093.26661.07663.34432.24912.56444.25122.7757
H93.26383.19952.21742.16391.07644.21664.20942.7757

picture of 1H-Imidazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 N4 111.064 N1 C2 H7 123.136
N1 C3 C5 105.469 N1 C3 H8 122.314
C2 N1 C3 107.545 C2 N1 H6 126.461
C2 N4 C5 105.525 C3 N1 H6 125.994
C3 C5 N4 110.397 C3 C5 H9 128.652
N4 C2 H7 125.800 N4 C5 H9 120.950
C5 C3 H8 132.218
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability