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

using model chemistry: SVWN/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 SVWN/6-311G*
 hartrees
Energy at 0K-224.931411
Energy at 298.15K-224.937368
HF Energy-224.931411
Nuclear repulsion energy167.281031
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 SVWN/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 3131 3101 16.31      
2 A1 2979 2950 2.49      
3 A1 1689 1673 16.10      
4 A1 1381 1368 0.00      
5 A1 1309 1296 49.77      
6 A1 1244 1232 9.06      
7 A1 1030 1021 2.15      
8 A1 913 904 13.95      
9 A2 1095 1085 0.00      
10 A2 887 879 0.00      
11 A2 545 540 0.00      
12 B1 3014 2986 3.69      
13 B1 953 944 17.95      
14 B1 797 789 7.64      
15 B1 381 377 42.53      
16 B2 3117 3087 5.62      
17 B2 1759 1742 0.77      
18 B2 1352 1339 37.91      
19 B2 1181 1170 0.24      
20 B2 1055 1045 24.28      
21 B2 917 908 87.65      

Unscaled Zero Point Vibrational Energy (zpe) 15364.9 cm-1
Scaled (by 0.9904) Zero Point Vibrational Energy (zpe) 15217.4 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 SVWN/6-311G*
ABC
0.36431 0.30706 0.17211

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.188
N2 0.000 0.995 0.283
N3 0.000 -0.995 0.283
C4 0.000 0.722 -0.941
C5 0.000 -0.722 -0.941
H6 -0.895 0.000 1.837
H7 0.895 0.000 1.837
H8 0.000 1.478 -1.731
H9 0.000 -1.478 -1.731

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8 H9
C11.34511.34512.24812.24811.10571.10573.27213.2721
N21.34511.99091.25462.10902.05122.05122.07153.1903
N31.34511.99092.10901.25462.05122.05123.19032.0715
C42.24811.25462.10901.44343.00713.00711.09392.3377
C52.24812.10901.25461.44343.00713.00712.33771.0939
H61.10572.05122.05123.00713.00711.78973.96513.9651
H71.10572.05122.05123.00713.00711.78973.96513.9651
H83.27212.07153.19031.09392.33773.96513.96512.9569
H93.27213.19032.07152.33771.09393.96513.96512.9569

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 119.664 C1 N3 C5 119.664
N2 C1 N3 95.469 N2 C1 H6 113.272
N2 C1 H7 113.272 N2 C4 C5 102.602
N2 C4 H8 123.631 N3 C1 H6 113.272
N3 C1 H7 113.272 N3 C5 C4 102.602
N3 C5 H9 123.631 C4 C5 H9 133.767
C5 C4 H8 133.767 H6 C1 H7 108.048
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.326      
2 N -0.223      
3 N -0.223      
4 C -0.146      
5 C -0.146      
6 H 0.297      
7 H 0.297      
8 H 0.235      
9 H 0.235      


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 -0.399 0.399
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.331 0.000 0.000
y 0.000 -34.983 0.000
z 0.000 0.000 -21.717
Traceless
 xyz
x 0.019 0.000 0.000
y 0.000 -9.959 0.000
z 0.000 0.000 9.940
Polar
3z2-r219.880
x2-y26.652
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.810 0.000 0.000
y 0.000 5.565 0.000
z 0.000 0.000 8.248


<r2> (average value of r2) Å2
<r2> 76.766
(<r2>)1/2 8.762