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

using model chemistry: B3LYP/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 B3LYP/CEP-121G
 hartrees
Energy at 0K-24.494819
Energy at 298.15K 
HF Energy-24.494819
Nuclear repulsion energy30.860124
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-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' 3216 3134 12.03 96.65 0.62 0.77
2 A' 3183 3102 7.05 146.19 0.29 0.45
3 A' 3101 3021 2.51 174.11 0.21 0.35
4 A' 1611 1570 48.53 15.24 0.04 0.08
5 A' 1410 1374 15.43 30.01 0.33 0.50
6 A' 1261 1229 62.85 21.37 0.67 0.80
7 A' 1012 986 10.88 8.01 0.72 0.84
8 A' 517 503 17.38 10.46 0.45 0.62
9 A' 305 297 0.40 14.90 0.66 0.80
10 A" 978 954 100.31 0.01 0.75 0.86
11 A" 944 920 8.27 5.36 0.75 0.86
12 A" 559 545 27.69 3.23 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9048.5 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 8817.8 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-121G
ABC
1.74341 0.10354 0.09774

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.473 -1.497 0.000
C2 -0.455 -2.474 0.000
I3 0.000 0.590 0.000
H4 1.545 -1.673 0.000
H5 -1.524 -2.277 0.000
H6 -0.134 -3.516 0.000

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6
C11.34722.14051.08632.14392.1087
C21.34723.09782.15451.08681.0906
I32.14053.09782.74033.24734.1090
H41.08632.15452.74033.12792.4942
H52.14391.08683.24733.12791.8614
H62.10871.09064.10902.49421.8614

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 123.120 C1 C2 H6 119.388
C2 C1 I3 123.691 C2 C1 H4 124.241
I3 C1 H4 112.068 H5 C2 H6 117.491
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.452      
2 C -0.203      
3 I 0.168      
4 H 0.183      
5 H 0.154      
6 H 0.149      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.154 -1.424 0.000 1.432
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.332 -0.605 0.000
y -0.605 -27.231 0.000
z 0.000 0.000 -35.724
Traceless
 xyz
x 0.145 -0.605 0.000
y -0.605 6.297 0.000
z 0.000 0.000 -6.442
Polar
3z2-r2-12.885
x2-y2-4.101
xy-0.605
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.752 0.436 0.000
y 0.436 10.896 0.000
z 0.000 0.000 2.217


<r2> (average value of r2) Å2
<r2> 82.313
(<r2>)1/2 9.073