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

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-6968.533652
Energy at 298.15K 
HF Energy-6968.533652
Nuclear repulsion energy187.922638
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 mPW1PW91/3-21G
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' 3276 3127 2.13 73.79 0.49 0.66
2 A' 3255 3108 3.49 111.09 0.38 0.55
3 A' 3179 3034 0.26 136.08 0.19 0.32
4 A' 1690 1613 44.32 7.85 0.10 0.19
5 A' 1473 1406 12.81 20.80 0.42 0.59
6 A' 1312 1252 58.78 14.84 0.45 0.62
7 A' 1060 1012 7.67 6.68 0.73 0.84
8 A' 551 526 11.92 8.37 0.39 0.56
9 A' 322 307 0.19 9.70 0.52 0.68
10 A" 1020 973 52.79 1.03 0.75 0.86
11 A" 1000 955 44.11 1.08 0.75 0.86
12 A" 588 561 25.01 7.13 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9362.5 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 8937.4 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 mPW1PW91/3-21G
ABC
1.78601 0.10497 0.09914

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.466 -1.494 0.000
C2 -0.447 -2.451 0.000
I3 0.000 0.587 0.000
H4 1.531 -1.684 0.000
H5 -1.511 -2.249 0.000
H6 -0.138 -3.493 0.000

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6
C11.32242.13281.08192.11582.0879
C21.32243.07082.12151.08311.0862
I32.13283.07082.73903.21304.0820
H41.08192.12152.73903.09382.4616
H52.11581.08313.21303.09381.8521
H62.08791.08624.08202.46161.8521

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 122.874 C1 C2 H6 119.867
C2 C1 I3 123.727 C2 C1 H4 123.550
I3 C1 H4 112.722 H5 C2 H6 117.259
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.562      
2 C -0.396      
3 I 0.208      
4 H 0.272      
5 H 0.240      
6 H 0.238      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.143 -1.435 0.000 1.442
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.104 -0.488 0.000
y -0.488 -35.174 0.000
z 0.000 0.000 -43.403
Traceless
 xyz
x 0.185 -0.488 0.000
y -0.488 6.079 0.000
z 0.000 0.000 -6.264
Polar
3z2-r2-12.528
x2-y2-3.930
xy-0.488
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.391 0.408 0.000
y 0.408 9.535 0.000
z 0.000 0.000 2.065


<r2> (average value of r2) Å2
<r2> 119.447
(<r2>)1/2 10.929