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

using model chemistry: B97D3/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-226.123787
Energy at 298.15K-226.129698
HF Energy-226.123787
Nuclear repulsion energy160.237802
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/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 A1 3129 3086 28.71      
2 A1 2989 2947 3.44      
3 A1 1490 1469 7.44      
4 A1 1362 1343 19.41      
5 A1 1311 1293 8.16      
6 A1 979 965 0.95      
7 A1 944 930 1.59      
8 A1 824 813 4.84      
9 A2 1148 1132 0.00      
10 A2 947 934 0.00      
11 A2 562 554 0.00      
12 B1 3018 2975 1.32      
13 B1 991 977 25.05      
14 B1 806 795 1.29      
15 B1 390 385 28.63      
16 B2 3114 3070 14.35      
17 B2 1592 1570 0.55      
18 B2 1254 1236 0.78      
19 B2 1220 1203 0.01      
20 B2 931 918 84.86      
21 B2 885 873 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 14942.7 cm-1
Scaled (by 0.986) Zero Point Vibrational Energy (zpe) 14733.5 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/cc-pVTZ
ABC
0.32363 0.28757 0.15670

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.131
N2 0.000 1.197 0.296
N3 0.000 -1.197 0.296
C4 0.000 0.738 -0.911
C5 0.000 -0.738 -0.911
H6 -0.882 0.000 1.786
H7 0.882 0.000 1.786
H8 0.000 1.387 -1.783
H9 0.000 -1.387 -1.783

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8 H9
C11.45921.45922.17052.17051.09851.09853.22723.2272
N21.45922.39341.29042.27982.10482.10482.08753.3163
N31.45922.39342.27981.29042.10482.10483.31632.0875
C42.17051.29042.27981.47582.93122.93121.08772.2973
C52.17052.27981.29041.47582.93122.93122.29731.0877
H61.09852.10482.10482.93122.93121.76363.92933.9293
H71.09852.10482.10482.93122.93121.76363.92933.9293
H83.22722.08753.31631.08772.29733.92933.92932.7745
H93.22723.31632.08752.29731.08773.92933.92932.7745

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 112.325 C1 N3 C5 112.325
N2 C1 N3 103.328 N2 C1 H6 110.988
N2 C1 H7 110.988 N2 C4 C5 106.011
N2 C4 H8 122.827 N3 C1 H6 110.988
N3 C1 H7 110.988 N3 C5 C4 106.011
N3 C5 H9 122.827 C4 C5 H9 131.162
C5 C4 H8 131.162 H6 C1 H7 109.458
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.031      
2 N -0.172      
3 N -0.172      
4 C -0.051      
5 C -0.051      
6 H 0.101      
7 H 0.101      
8 H 0.106      
9 H 0.106      


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 -1.100 1.100
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.781 0.000 0.000
y 0.000 -35.481 0.000
z 0.000 0.000 -23.392
Traceless
 xyz
x 0.655 0.000 0.000
y 0.000 -9.395 0.000
z 0.000 0.000 8.740
Polar
3z2-r217.479
x2-y26.700
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.319 0.000 0.000
y 0.000 6.291 0.000
z 0.000 0.000 8.569


<r2> (average value of r2) Å2
<r2> 81.815
(<r2>)1/2 9.045