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

using model chemistry: MP3=FULL/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-225.893227
Energy at 298.15K-225.899356
HF Energy-224.899408
Nuclear repulsion energy164.342071
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/aug-cc-pVTZ
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' 3760 3760 81.23      
2 A' 3343 3343 0.92      
3 A' 3312 3312 0.60      
4 A' 3309 3309 2.79      
5 A' 1610 1610 11.80      
6 A' 1557 1557 24.34      
7 A' 1483 1483 19.25      
8 A' 1405 1405 6.50      
9 A' 1311 1311 0.39      
10 A' 1191 1191 7.89      
11 A' 1170 1170 2.36      
12 A' 1121 1121 16.30      
13 A' 1100 1100 35.56      
14 A' 965 965 1.65      
15 A' 925 925 5.84      
16 A" 928 928 1.29      
17 A" 888 888 31.50      
18 A" 806 806 38.66      
19 A" 697 697 3.81      
20 A" 663 663 13.64      
21 A" 583 583 99.15      

Unscaled Zero Point Vibrational Energy (zpe) 16062.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16062.8 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 MP3=FULL/aug-cc-pVTZ
ABC
0.32950 0.31817 0.16187

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.097 0.000
C2 -1.081 0.281 0.000
C3 1.111 0.297 0.000
N4 -0.739 -0.976 0.000
C5 0.633 -0.978 0.000
H6 -0.014 2.094 0.000
H7 -2.084 0.658 0.000
H8 2.105 0.692 0.000
H9 1.194 -1.889 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.35461.36922.20132.16970.99722.12972.14333.2164
C21.35462.19231.30312.12672.10381.07123.21213.1444
C31.36922.19232.24591.36202.12053.21531.06912.1879
N42.20131.30312.24591.37173.15502.11643.29682.1378
C52.16972.12671.36201.37173.13983.17122.22621.0702
H60.99722.10382.12053.15503.13982.51922.54094.1628
H72.12971.07123.21532.11643.17122.51924.18864.1513
H82.14333.21211.06913.29682.22622.54094.18862.7371
H93.21643.14442.18792.13781.07024.16284.15132.7371

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 111.827 N1 C2 H7 122.357
N1 C3 C5 105.196 N1 C3 H8 122.561
C2 N1 C3 107.191 C2 N1 H6 126.229
C2 N4 C5 105.299 C3 N1 H6 126.579
C3 C5 N4 110.486 C3 C5 H9 127.796
N4 C2 H7 125.816 N4 C5 H9 121.717
C5 C3 H8 132.243
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability