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

using model chemistry: M06-2X/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/6-311G**
 hartrees
Energy at 0K-226.182333
Energy at 298.15K-226.188373
HF Energy-226.182333
Nuclear repulsion energy163.734634
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 M06-2X/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3705 3705 82.26      
2 A' 3290 3290 0.67      
3 A' 3265 3265 2.75      
4 A' 3255 3255 1.26      
5 A' 1592 1592 15.44      
6 A' 1534 1534 19.92      
7 A' 1462 1462 16.13      
8 A' 1393 1393 7.39      
9 A' 1291 1291 0.61      
10 A' 1189 1189 5.56      
11 A' 1158 1158 3.20      
12 A' 1107 1107 26.11      
13 A' 1091 1091 36.05      
14 A' 953 953 2.31      
15 A' 913 913 7.06      
16 A" 902 902 4.22      
17 A" 848 848 29.53      
18 A" 751 751 44.19      
19 A" 688 688 5.19      
20 A" 654 654 9.11      
21 A" 547 547 105.20      

Unscaled Zero Point Vibrational Energy (zpe) 15793.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15793.5 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 M06-2X/6-311G**
ABC
0.32761 0.31554 0.16073

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.101 0.000
C2 -1.086 0.280 0.000
C3 1.116 0.299 0.000
N4 -0.740 -0.980 0.000
C5 0.633 -0.980 0.000
H6 -0.010 2.107 0.000
H7 -2.096 0.659 0.000
H8 2.114 0.700 0.000
H9 1.195 -1.900 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.36141.37422.20882.17531.00612.14172.15193.2302
C21.36142.20151.30662.13102.12031.07903.22743.1550
C31.37422.20152.25351.36692.13043.23161.07612.2000
N42.20881.30662.25351.37283.17232.12763.31182.1426
C52.17532.13101.36691.37283.15363.18342.23991.0780
H61.00612.12032.13043.17233.15362.53862.54834.1845
H72.14171.07903.23162.12763.18342.53864.21014.1691
H82.15193.22741.07613.31182.23992.54834.21012.7575
H93.23023.15502.20002.14261.07804.18454.16912.7575

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 111.753 N1 C2 H7 122.293
N1 C3 C5 105.044 N1 C3 H8 122.381
C2 N1 C3 107.172 C2 N1 H6 126.512
C2 N4 C5 105.349 C3 N1 H6 126.316
C3 C5 N4 110.682 C3 C5 H9 127.877
N4 C2 H7 125.954 N4 C5 H9 121.442
C5 C3 H8 132.576
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.408      
2 C 0.180      
3 C -0.001      
4 N -0.342      
5 C -0.091      
6 H 0.255      
7 H 0.138      
8 H 0.140      
9 H 0.130      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.113 3.615 0.000 3.783
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.332 -3.282 0.000
y -3.282 -25.419 0.000
z 0.000 0.000 -31.877
Traceless
 xyz
x 2.316 -3.282 0.000
y -3.282 3.685 0.000
z 0.000 0.000 -6.001
Polar
3z2-r2-12.002
x2-y2-0.913
xy-3.282
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.181 -0.166 0.000
y -0.166 6.938 0.000
z 0.000 0.000 3.358


<r2> (average value of r2) Å2
<r2> 79.433
(<r2>)1/2 8.912