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

using model chemistry: MP4/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/6-311G**
 hartrees
Energy at 0K-225.689554
Energy at 298.15K-225.695414
HF Energy-224.865369
Nuclear repulsion energy162.258533
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 MP4/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3679 3567        
2 A' 3282 3183        
3 A' 3255 3156        
4 A' 3252 3154        
5 A' 1537 1491        
6 A' 1499 1453        
7 A' 1449 1405        
8 A' 1354 1312        
9 A' 1270 1232        
10 A' 1158 1122        
11 A' 1143 1109        
12 A' 1092 1059        
13 A' 1074 1041        
14 A' 929 901        
15 A' 893 866        
16 A" 814 789        
17 A" 788 764        
18 A" 691 670        
19 A" 667 647        
20 A" 626 607        
21 A" 466 452        

Unscaled Zero Point Vibrational Energy (zpe) 15458.1 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 14989.7 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 MP4/6-311G**
ABC
0.32306 0.30837 0.15777

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.111 0.000
C2 -1.094 0.283 0.000
C3 1.126 0.306 0.000
N4 -0.748 -0.996 0.000
C5 0.638 -0.987 0.000
H6 -0.010 2.120 0.000
H7 -2.107 0.666 0.000
H8 2.126 0.716 0.000
H9 1.205 -1.910 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.37201.38392.23612.19341.00902.15382.16283.2528
C21.37202.21921.32472.14772.13311.08363.24903.1767
C31.38392.21922.28151.38192.14023.25271.08152.2177
N42.23611.32472.28151.38643.20242.14703.34552.1560
C52.19342.14771.38191.38643.17433.20482.26141.0829
H61.00902.13312.14023.20243.17432.55212.55664.2095
H72.15381.08363.25272.14703.20482.55214.23394.1958
H82.16283.24901.08153.34552.26142.55664.23392.7831
H93.25283.17672.21772.15601.08294.20954.19582.7831

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 112.020 N1 C2 H7 122.151
N1 C3 C5 104.940 N1 C3 H8 122.156
C2 N1 C3 107.274 C2 N1 H6 126.577
C2 N4 C5 104.757 C3 N1 H6 126.148
C3 C5 N4 111.008 C3 C5 H9 127.836
N4 C2 H7 125.828 N4 C5 H9 121.156
C5 C3 H8 132.904
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability