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All results from a given calculation for C3H4N2 (2H-Imidazole)

using model chemistry: B97D3/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/6-311G**
 hartrees
Energy at 0K-226.102285
Energy at 298.15K-226.108189
HF Energy-226.102285
Nuclear repulsion energy159.925340
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 B97D3/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3129 3084 29.49      
2 A1 2990 2948 3.92      
3 A1 1493 1472 7.35      
4 A1 1366 1346 19.48      
5 A1 1309 1290 8.70      
6 A1 979 965 0.80      
7 A1 942 928 1.34      
8 A1 827 815 5.89      
9 A2 1149 1132 0.00      
10 A2 943 929 0.00      
11 A2 563 555 0.00      
12 B1 3021 2978 3.09      
13 B1 990 976 25.86      
14 B1 804 792 1.75      
15 B1 389 384 30.15      
16 B2 3113 3069 15.45      
17 B2 1594 1572 0.88      
18 B2 1250 1232 0.40      
19 B2 1222 1205 0.00      
20 B2 933 920 83.77      
21 B2 885 873 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 14945.6 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 14731.9 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 B97D3/6-311G**
ABC
0.32297 0.28592 0.15608

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.131
N2 0.000 1.200 0.297
N3 0.000 -1.200 0.297
C4 0.000 0.740 -0.912
C5 0.000 -0.740 -0.912
H6 -0.884 0.000 1.786
H7 0.884 0.000 1.786
H8 0.000 1.391 -1.785
H9 0.000 -1.391 -1.785

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8 H9
C11.46191.46192.17262.17261.10021.10023.23113.2311
N21.46192.40081.29312.28562.10752.10752.09073.3239
N31.46192.40082.28561.29312.10752.10753.32392.0907
C42.17261.29312.28561.47952.93402.93401.08962.3026
C52.17262.28561.29311.47952.93402.93402.30261.0896
H61.10022.10752.10752.93402.93401.76743.93373.9337
H71.10022.10752.10752.93402.93401.76743.93373.9337
H83.23112.09073.32391.08962.30263.93373.93372.7813
H93.23113.32392.09072.30261.08963.93373.93372.7813

picture of 2H-Imidazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C4 112.378 C1 N3 C5 112.378
N2 C1 N3 103.273 N2 C1 H6 110.991
N2 C1 H7 110.991 N2 C4 C5 105.986
N2 C4 H8 122.834 N3 C1 H6 110.991
N3 C1 H7 110.991 N3 C5 C4 105.986
N3 C5 H9 122.834 C4 C5 H9 131.180
C5 C4 H8 131.180 H6 C1 H7 109.496
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.021      
2 N -0.255      
3 N -0.255      
4 C -0.000      
5 C -0.000      
6 H 0.155      
7 H 0.155      
8 H 0.111      
9 H 0.111      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.061 1.061
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.738 0.000 0.000
y 0.000 -35.439 0.000
z 0.000 0.000 -23.304
Traceless
 xyz
x 0.634 0.000 0.000
y 0.000 -9.418 0.000
z 0.000 0.000 8.784
Polar
3z2-r217.569
x2-y26.702
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.842 0.000 0.000
y 0.000 5.635 0.000
z 0.000 0.000 8.295


<r2> (average value of r2) Å2
<r2> 82.022
(<r2>)1/2 9.057