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

using model chemistry: HF/SDD

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/SDD
 hartrees
Energy at 0K-88.597332
Energy at 298.15K 
HF Energy-88.597332
Nuclear repulsion energy49.537384
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/SDD
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' 3449 3106 14.43 79.70 0.53 0.69
2 A' 3428 3087 13.27 127.34 0.36 0.53
3 A' 3336 3004 4.14 143.62 0.19 0.32
4 A' 1779 1602 41.90 30.03 0.14 0.24
5 A' 1549 1395 17.05 31.80 0.43 0.60
6 A' 1392 1254 84.84 31.04 0.32 0.48
7 A' 1124 1012 8.76 5.59 0.65 0.79
8 A' 557 501 15.35 24.17 0.25 0.39
9 A' 334 300 0.54 18.09 0.57 0.73
10 A" 1150 1036 60.94 10.09 0.75 0.86
11 A" 1096 987 58.42 0.86 0.75 0.86
12 A" 625 563 39.11 1.46 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9909.3 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 8922.4 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/SDD
ABC
1.79487 0.10510 0.09929

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.467 -1.491 0.000
C2 -0.447 -2.452 0.000
I3 0.000 0.586 0.000
H4 1.522 -1.676 0.000
H5 -1.502 -2.258 0.000
H6 -0.140 -3.483 0.000

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6
C11.32672.12881.07082.11292.0831
C21.32673.07122.11641.07221.0759
I32.12883.07122.72623.21664.0721
H41.07082.11642.72623.07892.4555
H52.11291.07223.21663.07891.8315
H62.08311.07594.07212.45551.8315

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 123.128 C1 C2 H6 119.870
C2 C1 I3 123.779 C2 C1 H4 123.604
I3 C1 H4 112.617 H5 C2 H6 117.002
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.510      
2 C -0.297      
3 I 0.148      
4 H 0.236      
5 H 0.212      
6 H 0.211      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.084 -1.732 0.000 1.734
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.734 -0.436 0.000
y -0.436 -27.343 0.000
z 0.000 0.000 -36.480
Traceless
 xyz
x 0.178 -0.436 0.000
y -0.436 6.764 0.000
z 0.000 0.000 -6.942
Polar
3z2-r2-13.884
x2-y2-4.391
xy-0.436
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.150 0.461 0.000
y 0.461 10.475 0.000
z 0.000 0.000 1.652


<r2> (average value of r2) Å2
<r2> 98.853
(<r2>)1/2 9.942