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

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

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-pVDZ
 hartrees
Energy at 0K-225.628464
Energy at 298.15K-225.634465
HF Energy-224.846110
Nuclear repulsion energy162.324823
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-pVDZ
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' 3737 3737 75.89      
2 A' 3336 3336 1.17      
3 A' 3311 3311 0.50      
4 A' 3307 3307 3.24      
5 A' 1586 1586 9.44      
6 A' 1534 1534 27.09      
7 A' 1483 1483 17.07      
8 A' 1388 1388 5.51      
9 A' 1290 1290 0.46      
10 A' 1173 1173 6.90      
11 A' 1157 1157 1.69      
12 A' 1110 1110 15.27      
13 A' 1086 1086 36.06      
14 A' 947 947 1.60      
15 A' 911 911 5.59      
16 A" 865 865 2.56      
17 A" 830 830 40.84      
18 A" 740 740 44.65      
19 A" 679 679 2.07      
20 A" 642 642 14.42      
21 A" 528 528 87.05      

Unscaled Zero Point Vibrational Energy (zpe) 15819.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15819.7 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-pVDZ
ABC
0.32210 0.30981 0.15792

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.110 0.000
C2 -1.094 0.285 0.000
C3 1.125 0.304 0.000
N4 -0.748 -0.991 0.000
C5 0.639 -0.990 0.000
H6 -0.015 2.117 0.000
H7 -2.110 0.667 0.000
H8 2.131 0.708 0.000
H9 1.207 -1.915 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.36991.38392.22952.19491.00712.15592.16903.2569
C21.36992.21881.32142.15132.12581.08573.25273.1834
C31.38392.21882.27681.38222.14163.25521.08442.2206
N42.22951.32142.27681.38713.19252.14513.34302.1629
C52.19492.15131.38221.38713.17493.20972.26051.0856
H61.00712.12582.14163.19253.17492.54762.56764.2131
H72.15591.08573.25522.14513.20972.54764.24164.2036
H82.16903.25271.08443.34302.26052.56764.24162.7810
H93.25693.18342.22062.16291.08564.21314.20362.7810

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 111.861 N1 C2 H7 122.375
N1 C3 C5 105.030 N1 C3 H8 122.520
C2 N1 C3 107.363 C2 N1 H6 126.164
C2 N4 C5 105.145 C3 N1 H6 126.474
C3 C5 N4 110.601 C3 C5 H9 127.859
N4 C2 H7 125.764 N4 C5 H9 121.540
C5 C3 H8 132.450
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability