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

using model chemistry: B1B95/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/STO-3G
 hartrees
Energy at 0K-6930.735741
Energy at 298.15K 
HF Energy-6930.735741
Nuclear repulsion energy190.134269
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 B1B95/STO-3G
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' 3579 3160 2.12 50.63 0.70 0.83
2 A' 3485 3077 2.68 57.15 0.28 0.43
3 A' 3423 3023 37.56 44.68 0.18 0.30
4 A' 1825 1611 23.52 6.21 0.10 0.18
5 A' 1540 1360 10.83 19.21 0.51 0.68
6 A' 1388 1226 30.84 11.59 0.48 0.65
7 A' 1096 968 7.19 4.81 0.73 0.85
8 A' 625 552 12.96 6.57 0.28 0.44
9 A' 335 296 0.33 5.40 0.53 0.69
10 A" 1088 960 15.58 0.71 0.75 0.86
11 A" 1006 889 17.36 0.16 0.75 0.86
12 A" 600 530 2.74 3.61 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9995.1 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 8825.7 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 B1B95/STO-3G
ABC
1.81626 0.10735 0.10136

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.458 -1.452 0.000
C2 -0.440 -2.434 0.000
I3 0.000 0.580 0.000
H4 1.531 -1.675 0.000
H5 -1.519 -2.258 0.000
H6 -0.118 -3.481 0.000

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6
C11.33012.08311.09582.13492.1084
C21.33013.04572.11141.09361.0949
I32.08313.04572.72563.21894.0621
H41.09582.11142.72563.10502.4448
H52.13491.09363.21893.10501.8594
H62.10841.09494.06212.44481.8594

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 123.185 C1 C2 H6 120.474
C2 C1 I3 124.865 C2 C1 H4 120.696
I3 C1 H4 114.440 H5 C2 H6 116.341
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.177      
2 C -0.159      
3 I 0.055      
4 H 0.100      
5 H 0.090      
6 H 0.091      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.259 -1.287 0.000 1.313
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.917 -0.431 0.000
y -0.431 -35.488 0.000
z 0.000 0.000 -39.129
Traceless
 xyz
x 0.392 -0.431 0.000
y -0.431 2.535 0.000
z 0.000 0.000 -2.927
Polar
3z2-r2-5.853
x2-y2-1.429
xy-0.431
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.254 0.241 0.000
y 0.241 5.877 0.000
z 0.000 0.000 0.629


<r2> (average value of r2) Å2
<r2> 116.341
(<r2>)1/2 10.786