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All results from a given calculation for C2H3I (Vinyl iodide)

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-6964.928833
Energy at 298.15K 
HF Energy-6964.928833
Nuclear repulsion energy188.701410
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 HF/3-21G*
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' 3409 3077 5.72 73.10 0.44 0.61
2 A' 3391 3061 5.37 105.19 0.44 0.61
3 A' 3317 2994 2.01 131.15 0.21 0.35
4 A' 1804 1628 24.12 12.47 0.16 0.28
5 A' 1573 1419 15.29 29.90 0.47 0.64
6 A' 1411 1274 67.95 18.85 0.27 0.43
7 A' 1144 1033 3.85 4.60 0.71 0.83
8 A' 585 528 10.06 15.60 0.21 0.35
9 A' 338 305 0.18 10.76 0.41 0.58
10 A" 1143 1032 29.26 3.17 0.75 0.86
11 A" 1116 1008 55.75 0.97 0.75 0.86
12 A" 621 560 23.48 12.90 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9926.2 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 8959.4 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 HF/3-21G*
ABC
1.81120 0.10578 0.09994

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.464 -1.493 0.000
C2 -0.444 -2.440 0.000
I3 0.000 0.585 0.000
H4 1.517 -1.684 0.000
H5 -1.496 -2.237 0.000
H6 -0.147 -3.472 0.000

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6
C11.31162.12911.06992.09642.0715
C21.31163.05672.10111.07141.0746
I32.12913.05672.72963.19354.0598
H41.06992.10112.72963.06292.4424
H52.09641.07143.19353.06291.8291
H62.07151.07464.05982.44241.8291

picture of Vinyl iodide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 122.903 C1 C2 H6 120.161
C2 C1 I3 123.593 C2 C1 H4 123.509
I3 C1 H4 112.898 H5 C2 H6 116.936
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.404      
2 C -0.414      
3 I 0.070      
4 H 0.268      
5 H 0.243      
6 H 0.236      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.100 -1.580 0.000 1.583
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.802 -0.601 0.000
y -0.601 -35.103 0.000
z 0.000 0.000 -44.090
Traceless
 xyz
x -0.206 -0.601 0.000
y -0.601 6.843 0.000
z 0.000 0.000 -6.638
Polar
3z2-r2-13.276
x2-y2-4.699
xy-0.601
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.799 0.709 0.000
y 0.709 10.208 0.000
z 0.000 0.000 3.701


<r2> (average value of r2) Å2
<r2> 118.917
(<r2>)1/2 10.905