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

using model chemistry: MP3=FULL/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/cc-pVTZ
 hartrees
Energy at 0K-225.862579
Energy at 298.15K-225.868679
HF Energy-224.896012
Nuclear repulsion energy164.351622
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/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' 3779 3525 81.32      
2 A' 3358 3132 1.02      
3 A' 3329 3105 0.71      
4 A' 3324 3100 3.38      
5 A' 1617 1508 11.92      
6 A' 1566 1461 20.13      
7 A' 1499 1398 17.69      
8 A' 1411 1316 6.73      
9 A' 1325 1236 0.75      
10 A' 1194 1113 7.57      
11 A' 1182 1102 1.26      
12 A' 1128 1052 14.43      
13 A' 1110 1035 38.51      
14 A' 965 900 1.42      
15 A' 930 867 6.95      
16 A" 916 854 1.86      
17 A" 879 820 28.36      
18 A" 776 723 42.26      
19 A" 698 651 4.34      
20 A" 662 618 12.22      
21 A" 553 516 93.60      

Unscaled Zero Point Vibrational Energy (zpe) 16100.2 cm-1
Scaled (by 0.9326) Zero Point Vibrational Energy (zpe) 15015.0 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/cc-pVTZ
ABC
0.33013 0.31758 0.16187

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.100 0.000
C2 -1.079 0.279 0.000
C3 1.111 0.296 0.000
N4 -0.742 -0.978 0.000
C5 0.633 -0.978 0.000
H6 -0.013 2.097 0.000
H7 -2.080 0.657 0.000
H8 2.103 0.692 0.000
H9 1.191 -1.889 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.35571.37162.20642.17230.99682.12652.14193.2177
C21.35572.19021.30142.12362.10721.07003.20803.1391
C31.37162.19022.24871.36112.12283.21151.06722.1865
N42.20641.30142.24871.37433.15992.11273.29802.1370
C52.17232.12361.36111.37433.14193.16722.22441.0686
H60.99682.10722.12283.15993.14192.51902.53974.1637
H72.12651.07003.21152.11273.16722.51904.18254.1452
H82.14193.20801.06723.29802.22442.53974.18252.7366
H93.21773.13912.18652.13701.06864.16374.14522.7366

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 112.261 N1 C2 H7 122.044
N1 C3 C5 105.295 N1 C3 H8 122.373
C2 N1 C3 106.843 C2 N1 H6 126.533
C2 N4 C5 105.018 C3 N1 H6 126.624
C3 C5 N4 110.582 C3 C5 H9 127.887
N4 C2 H7 125.694 N4 C5 H9 121.531
C5 C3 H8 132.332
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability