return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: TPSSh/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/Def2TZVPP
 hartrees
Energy at 0K-375.641448
Energy at 298.15K 
HF Energy-375.641448
Nuclear repulsion energy104.798412
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 TPSSh/Def2TZVPP
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' 3225 3225 2.37 84.10 0.60 0.75
2 A' 3198 3198 3.24 122.22 0.29 0.45
3 A' 3130 3130 1.57 174.27 0.19 0.33
4 A' 1643 1643 42.18 20.33 0.07 0.13
5 A' 1416 1416 12.89 24.13 0.36 0.53
6 A' 1262 1262 51.00 12.33 0.23 0.37
7 A' 1001 1001 5.66 2.62 0.75 0.86
8 A' 541 541 12.48 6.20 0.11 0.20
9 A' 304 304 0.08 8.35 0.39 0.56
10 A" 985 985 36.99 0.00 0.75 0.86
11 A" 939 939 18.75 0.60 0.75 0.86
12 A" 558 558 18.93 1.43 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9100.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9100.4 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 TPSSh/Def2TZVPP
ABC
1.79505 0.10795 0.10182

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.464 -1.462 0.000
C2 -0.446 -2.423 0.000
I3 0.000 0.578 0.000
H4 1.530 -1.644 0.000
H5 -1.510 -2.227 0.000
H6 -0.128 -3.461 0.000

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6
C11.32372.09251.08132.11712.0845
C21.32373.03452.12441.08211.0853
I32.09253.03452.69773.18574.0412
H41.08132.12442.69773.09572.4598
H52.11711.08213.18573.09571.8533
H62.08451.08534.04122.45981.8533

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 122.968 C1 C2 H6 119.500
C2 C1 I3 123.749 C2 C1 H4 123.778
I3 C1 H4 112.474 H5 C2 H6 117.532
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.077      
2 C -0.144      
3 I -0.032      
4 H 0.086      
5 H 0.081      
6 H 0.086      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.149 -1.326 0.000 1.334
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.022 0.573 0.000
y 0.573 11.888 0.000
z 0.000 0.000 5.608


<r2> (average value of r2) Å2
<r2> 106.879
(<r2>)1/2 10.338