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

using model chemistry: B97D3/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/aug-cc-pVTZ
 hartrees
Energy at 0K-226.155301
Energy at 298.15K-226.161201
HF Energy-226.155301
Nuclear repulsion energy162.763044
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/aug-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 A' 3591 3537 34.36      
2 A' 3221 3172 2.97      
3 A' 3194 3145 0.50      
4 A' 3190 3142 6.62      
5 A' 1510 1487 8.46      
6 A' 1458 1436 17.66      
7 A' 1387 1366 13.72      
8 A' 1322 1302 4.93      
9 A' 1250 1231 0.16      
10 A' 1141 1123 5.82      
11 A' 1116 1099 3.57      
12 A' 1066 1050 14.30      
13 A' 1049 1033 34.46      
14 A' 929 915 1.79      
15 A' 891 878 8.79      
16 A" 839 826 6.01      
17 A" 777 765 42.42      
18 A" 703 692 32.73      
19 A" 667 657 3.54      
20 A" 631 621 9.55      
21 A" 519 511 82.87      

Unscaled Zero Point Vibrational Energy (zpe) 15226.1 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 14993.2 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/aug-cc-pVTZ
ABC
0.32299 0.31236 0.15879

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.742 -0.986 0.000
H2 -0.005 2.114 0.000
C3 1.122 0.300 0.000
H4 2.121 0.709 0.000
C5 0.638 -0.987 0.000
H6 1.201 -1.910 0.000
H7 -2.107 0.666 0.000
C8 -1.096 0.285 0.000
N9 0.000 1.106 0.000

Atom - Atom Distances (Å)
  N1 H2 C3 H4 C5 H6 H7 C8 N9
N13.18602.26493.32711.38062.15212.14321.31872.2197
H23.18602.13582.54843.16724.20062.55232.12961.0076
C32.26492.13581.07901.37512.21113.25052.21821.3819
H43.32712.54841.07902.25272.77544.22853.24452.1577
C51.38063.16721.37512.25271.08083.20532.15062.1886
H62.15214.20062.21112.77541.08084.19343.17693.2465
H72.14322.55233.25054.22853.20534.19341.08122.1528
C81.31872.12962.21823.24452.15063.17691.08121.3696
N92.21971.00761.38192.15772.18863.24652.15281.3696

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 69.919 N1 C2 H7 42.075
N1 C3 C5 34.807 N1 C3 H8 34.194
C2 N1 C3 42.038 C2 N1 H6 102.051
C2 N4 C5 82.302 C3 N1 H6 60.013
C3 C5 N4 20.548 C3 C5 H9 37.564
N4 C2 H7 111.994 N4 C5 H9 58.113
C5 C3 H8 69.001
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.448      
2 H 0.006      
3 C -0.374      
4 H 0.327      
5 C -0.049      
6 H 0.358      
7 H 0.381      
8 C -0.393      
9 N 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.121 3.471 0.000 3.648
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.064 -3.313 0.000
y -3.313 -26.096 0.000
z 0.000 0.000 -31.903
Traceless
 xyz
x 1.936 -3.313 0.000
y -3.313 3.387 0.000
z 0.000 0.000 -5.323
Polar
3z2-r2-10.645
x2-y2-0.968
xy-3.313
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.919 -0.040 0.000
y -0.040 8.528 0.000
z 0.000 0.000 5.155


<r2> (average value of r2) Å2
<r2> 80.460
(<r2>)1/2 8.970