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

using model chemistry: B3LYP/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/CEP-31G
 hartrees
Energy at 0K-24.487010
Energy at 298.15K 
HF Energy-24.487010
Nuclear repulsion energy30.684856
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 B3LYP/CEP-31G
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' 3258 3155 16.84 93.26 0.50 0.67
2 A' 3222 3120 11.55 147.92 0.36 0.53
3 A' 3148 3048 4.34 155.00 0.23 0.38
4 A' 1640 1588 45.89 20.79 0.08 0.15
5 A' 1407 1362 12.59 25.61 0.45 0.62
6 A' 1254 1214 62.92 22.40 0.64 0.78
7 A' 1003 971 12.85 5.76 0.37 0.54
8 A' 517 501 18.82 8.98 0.48 0.65
9 A' 302 293 0.40 17.04 0.63 0.78
10 A" 976 945 136.16 1.03 0.75 0.86
11 A" 938 909 4.45 14.80 0.75 0.86
12 A" 554 536 28.97 3.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9108.4 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 8820.6 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 B3LYP/CEP-31G
ABC
1.70382 0.10313 0.09724

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.480 -1.494 0.000
C2 -0.462 -2.482 0.000
I3 0.000 0.591 0.000
H4 1.558 -1.673 0.000
H5 -1.536 -2.282 0.000
H6 -0.135 -3.530 0.000

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6
C11.36562.13991.09232.16472.1268
C21.36563.10822.17591.09261.0974
I32.13993.10822.74853.25784.1233
H41.09232.17592.74853.15312.5125
H52.16471.09263.25783.15311.8764
H62.12681.09744.12332.51251.8764

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 123.046 C1 C2 H6 119.025
C2 C1 I3 123.397 C2 C1 H4 124.194
I3 C1 H4 112.410 H5 C2 H6 117.929
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.526      
2 C -0.261      
3 I 0.106      
4 H 0.262      
5 H 0.235      
6 H 0.184      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.154 -1.549 0.000 1.557
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.047 -0.687 0.000
y -0.687 -26.868 0.000
z 0.000 0.000 -35.679
Traceless
 xyz
x 0.226 -0.687 0.000
y -0.687 6.496 0.000
z 0.000 0.000 -6.722
Polar
3z2-r2-13.443
x2-y2-4.180
xy-0.687
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.494 0.533 0.000
y 0.533 10.581 0.000
z 0.000 0.000 2.058


<r2> (average value of r2) Å2
<r2> 82.553
(<r2>)1/2 9.086