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

using model chemistry: SVWN/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-224.964665
Energy at 298.15K-224.970624
HF Energy-224.964665
Nuclear repulsion energy167.474642
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/6-311+G(3df,2p)
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 3131 10.52      
2 A1 2966 2966 5.82      
3 A1 1675 1675 17.55      
4 A1 1375 1375 0.80      
5 A1 1284 1284 54.61      
6 A1 1240 1240 4.59      
7 A1 1028 1028 1.00      
8 A1 916 916 10.42      
9 A2 1081 1081 0.00      
10 A2 896 896 0.00      
11 A2 543 543 0.00      
12 B1 2998 2998 9.43      
13 B1 941 941 20.41      
14 B1 797 797 4.26      
15 B1 378 378 41.16      
16 B2 3118 3118 1.55      
17 B2 1749 1749 0.72      
18 B2 1345 1345 38.12      
19 B2 1179 1179 0.13      
20 B2 1048 1048 26.32      
21 B2 914 914 79.01      

Unscaled Zero Point Vibrational Energy (zpe) 15301.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15301.0 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/6-311+G(3df,2p)
ABC
0.36553 0.30758 0.17253

See section I.F.4 to change rotational constant units
Geometric Data calculated at SVWN/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.186
N2 0.000 0.995 0.283
N3 0.000 -0.995 0.283
C4 0.000 0.719 -0.940
C5 0.000 -0.719 -0.940
H6 -0.893 0.000 1.836
H7 0.893 0.000 1.836
H8 0.000 1.469 -1.733
H9 0.000 -1.469 -1.733

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8 H9
C11.34421.34422.24492.24491.10461.10463.26823.2682
N21.34421.99071.25392.10622.04982.04982.07093.1839
N31.34421.99072.10621.25392.04982.04983.18392.0709
C42.24491.25392.10621.43853.00423.00421.09122.3275
C52.24492.10621.25391.43853.00423.00422.32751.0912
H61.10462.04982.04983.00423.00421.78593.96193.9619
H71.10462.04982.04983.00423.00421.78593.96193.9619
H83.26822.07093.18391.09122.32753.96193.96192.9382
H93.26823.18392.07092.32751.09123.96193.96192.9382

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 119.510 C1 N3 C5 119.510
N2 C1 N3 95.543 N2 C1 H6 113.303
N2 C1 H7 113.303 N2 C4 C5 102.719
N2 C4 H8 123.874 N3 C1 H6 113.303
N3 C1 H7 113.303 N3 C5 C4 102.719
N3 C5 H9 123.874 C4 C5 H9 133.407
C5 C4 H8 133.407 H6 C1 H7 107.884
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.590      
2 N -0.937      
3 N -0.937      
4 C 0.265      
5 C 0.265      
6 H 0.183      
7 H 0.183      
8 H 0.194      
9 H 0.194      


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 -0.621 0.621
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.727 0.000 0.000
y 0.000 -36.144 0.000
z 0.000 0.000 -21.826
Traceless
 xyz
x 0.258 0.000 0.000
y 0.000 -10.867 0.000
z 0.000 0.000 10.609
Polar
3z2-r221.219
x2-y27.417
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.055 0.000 0.000
y 0.000 7.624 0.000
z 0.000 0.000 8.996


<r2> (average value of r2) Å2
<r2> 76.964
(<r2>)1/2 8.773