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

using model chemistry: B2PLYP=FULLultrafine/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-226.049364
Energy at 298.15K 
HF Energy-225.761365
Nuclear repulsion energy163.459163
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(2df,p)
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' 3701 3701 60.02      
2 A' 3315 3315 1.37      
3 A' 3286 3286 0.16      
4 A' 3284 3284 5.00      
5 A' 1561 1561 12.17      
6 A' 1515 1515 15.39      
7 A' 1448 1448 16.27      
8 A' 1375 1375 7.94      
9 A' 1292 1292 0.48      
10 A' 1172 1172 4.47      
11 A' 1161 1161 2.36      
12 A' 1110 1110 16.19      
13 A' 1086 1086 32.62      
14 A' 946 946 1.32      
15 A' 907 907 9.23      
16 A" 865 865 5.85      
17 A" 821 821 27.72      
18 A" 734 734 21.88      
19 A" 690 690 2.41      
20 A" 652 652 14.40      
21 A" 532 532 84.75      

Unscaled Zero Point Vibrational Energy (zpe) 15725.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15725.8 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(2df,p)
ABC
0.32684 0.31404 0.16016

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.102 0.000
C2 -1.087 0.282 0.000
C3 1.117 0.300 0.000
N4 -0.741 -0.985 0.000
C5 0.634 -0.982 0.000
H6 -0.009 2.107 0.000
H7 -2.094 0.665 0.000
H8 2.112 0.708 0.000
H9 1.197 -1.900 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.36171.37552.21552.17861.00432.13962.14823.2324
C21.36172.20411.31392.13572.11901.07753.22683.1591
C31.37552.20412.25951.36942.12913.23211.07512.2014
N42.21551.31392.25951.37583.17752.13383.31762.1434
C52.17862.13571.36941.37583.15483.18712.24431.0770
H61.00432.11902.12913.17753.15482.53522.54064.1845
H72.13961.07753.23212.13383.18712.53524.20634.1727
H82.14823.22681.07513.31762.24432.54064.20632.7638
H93.23243.15912.20142.14341.07704.18454.17272.7638

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 111.781 N1 C2 H7 122.182
N1 C3 C5 105.064 N1 C3 H8 121.996
C2 N1 C3 107.269 C2 N1 H6 126.509
C2 N4 C5 105.103 C3 N1 H6 126.222
C3 C5 N4 110.782 C3 C5 H9 127.881
N4 C2 H7 126.037 N4 C5 H9 121.337
C5 C3 H8 132.940
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability