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

using model chemistry: MP2=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 MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-225.851826
Energy at 298.15K-225.857882
HF Energy-224.894816
Nuclear repulsion energy163.920381
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 MP2=FULL/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3703 3515 76.00      
2 A' 3335 3166 0.51      
3 A' 3311 3143 0.66      
4 A' 3303 3135 2.59      
5 A' 1551 1473 6.47      
6 A' 1523 1446 17.78      
7 A' 1476 1402 14.19      
8 A' 1384 1314 7.26      
9 A' 1293 1227 0.82      
10 A' 1199 1139 3.46      
11 A' 1162 1104 2.85      
12 A' 1113 1056 27.29      
13 A' 1096 1040 23.02      
14 A' 943 895 1.54      
15 A' 905 859 7.39      
16 A" 884 839 6.90      
17 A" 825 784 37.42      
18 A" 747 710 30.07      
19 A" 693 658 0.50      
20 A" 662 628 21.04      
21 A" 576 547 81.28      

Unscaled Zero Point Vibrational Energy (zpe) 15840.9 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 15039.4 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 MP2=FULL/cc-pVTZ
ABC
0.32939 0.31510 0.16104

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.098 0.000
C2 -1.085 0.283 0.000
C3 1.112 0.304 0.000
N4 -0.736 -0.987 0.000
C5 0.631 -0.980 0.000
H6 -0.012 2.101 0.000
H7 -2.088 0.661 0.000
H8 2.104 0.705 0.000
H9 1.198 -1.888 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.35731.36622.21122.17181.00282.13282.14013.2181
C21.35732.19721.31692.13062.11121.07133.21673.1509
C31.36622.19722.25441.37142.11913.21931.06972.1946
N42.21121.31692.25441.36703.17162.13123.30562.1340
C52.17182.13061.37141.36703.14713.17532.23801.0711
H61.00282.11122.11913.17163.14712.52622.53454.1689
H72.13281.07133.21932.13123.17532.52624.19154.1588
H82.14013.21671.06973.30562.23802.53454.19152.7472
H93.21813.15092.19462.13401.07114.16894.15882.7472

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 111.547 N1 C2 H7 122.415
N1 C3 C5 104.988 N1 C3 H8 122.475
C2 N1 C3 107.558 C2 N1 H6 126.241
C2 N4 C5 105.080 C3 N1 H6 126.201
C3 C5 N4 110.826 C3 C5 H9 127.491
N4 C2 H7 126.038 N4 C5 H9 121.684
C5 C3 H8 132.537
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability