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All results from a given calculation for C3H4N2 (1H-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 CS 1A'
Energy calculated at MP3=FULL/6-311G*
 hartrees
Energy at 0K-225.706263
Energy at 298.15K-225.712228
HF Energy-224.858446
Nuclear repulsion energy163.349657
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 A' 3764 3764 65.05      
2 A' 3323 3323 2.11      
3 A' 3298 3298 0.78      
4 A' 3295 3295 5.75      
5 A' 1610 1610 14.03      
6 A' 1557 1557 22.75      
7 A' 1505 1505 18.83      
8 A' 1405 1405 7.34      
9 A' 1309 1309 0.79      
10 A' 1192 1192 7.46      
11 A' 1181 1181 0.75      
12 A' 1126 1126 21.57      
13 A' 1105 1105 37.72      
14 A' 962 962 2.26      
15 A' 927 927 6.94      
16 A" 840 840 1.88      
17 A" 824 824 50.05      
18 A" 716 716 38.19      
19 A" 686 686 8.69      
20 A" 646 646 18.36      
21 A" 498 498 102.94      

Unscaled Zero Point Vibrational Energy (zpe) 15883.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15883.5 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
0.32666 0.31333 0.15993

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.104 0.000
C2 -1.086 0.281 0.000
C3 1.118 0.302 0.000
N4 -0.744 -0.985 0.000
C5 0.635 -0.982 0.000
H6 -0.011 2.107 0.000
H7 -2.098 0.658 0.000
H8 2.119 0.702 0.000
H9 1.197 -1.904 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.36261.37632.21752.18081.00252.14482.15663.2376
C21.36262.20381.31102.13432.11861.08033.23223.1597
C31.37632.20382.26311.37182.12903.23571.07822.2072
N42.21751.31102.26311.37873.17712.12913.32302.1474
C52.18082.13431.37181.37873.15563.18732.24521.0797
H61.00252.11862.12903.17713.15562.54032.55114.1887
H72.14481.08033.23572.12913.18732.54034.21714.1738
H82.15663.23221.07823.32302.24522.55114.21712.7650
H93.23763.15972.20722.14741.07974.18874.17382.7650

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 112.062 N1 C2 H7 122.376
N1 C3 C5 105.045 N1 C3 H8 122.497
C2 N1 C3 107.152 C2 N1 H6 126.546
C2 N4 C5 105.007 C3 N1 H6 126.302
C3 C5 N4 110.735 C3 C5 H9 128.008
N4 C2 H7 125.562 N4 C5 H9 121.257
C5 C3 H8 132.458
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability