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

using model chemistry: HF/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-23.865440
Energy at 298.15K 
HF Energy-23.865440
Nuclear repulsion energy31.182319
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/CEP-121G
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' 3392 3095 13.43 92.25 0.57 0.72
2 A' 3367 3072 8.81 134.78 0.36 0.53
3 A' 3277 2991 3.40 141.93 0.21 0.35
4 A' 1749 1596 37.27 28.14 0.11 0.20
5 A' 1523 1389 17.91 37.73 0.38 0.55
6 A' 1374 1254 75.75 31.77 0.59 0.74
7 A' 1106 1009 7.37 7.88 0.72 0.84
8 A' 560 511 13.25 23.11 0.36 0.53
9 A' 330 302 0.29 17.88 0.63 0.77
10 A" 1113 1016 69.90 8.63 0.75 0.86
11 A" 1077 983 38.66 5.63 0.75 0.86
12 A" 619 565 33.57 4.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9743.0 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 8890.5 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 HF/CEP-121G
ABC
1.78879 0.10544 0.09957

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.467 -1.483 0.000
C2 -0.448 -2.451 0.000
I3 0.000 0.585 0.000
H4 1.525 -1.667 0.000
H5 -1.506 -2.258 0.000
H6 -0.134 -3.482 0.000

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6
C11.33222.12081.07342.11972.0872
C21.33223.06922.12321.07491.0779
I32.12083.06922.72003.21734.0696
H41.07342.12322.72003.08772.4590
H52.11971.07493.21733.08771.8384
H62.08721.07794.06962.45901.8384

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 123.073 C1 C2 H6 119.637
C2 C1 I3 123.852 C2 C1 H4 123.567
I3 C1 H4 112.581 H5 C2 H6 117.290
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.526      
2 C -0.199      
3 I 0.199      
4 H 0.197      
5 H 0.168      
6 H 0.161      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.111 -1.694 0.000 1.698
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.581 -0.453 0.000
y -0.453 -27.254 0.000
z 0.000 0.000 -36.188
Traceless
 xyz
x 0.140 -0.453 0.000
y -0.453 6.630 0.000
z 0.000 0.000 -6.770
Polar
3z2-r2-13.540
x2-y2-4.327
xy-0.453
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.641 0.605 0.000
y 0.605 10.548 0.000
z 0.000 0.000 2.170


<r2> (average value of r2) Å2
<r2> 81.306
(<r2>)1/2 9.017