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All results from a given calculation for C2H3 (vinyl)

using model chemistry: PBE1PBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at PBE1PBE/6-31G**
 hartrees
Energy at 0K-77.797167
Energy at 298.15K-77.798678
HF Energy-77.797167
Nuclear repulsion energy28.387254
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 PBE1PBE/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3291 3136 2.38      
2 A' 3207 3056 5.38      
3 A' 3108 2963 4.77      
4 A' 1688 1609 1.62      
5 A' 1414 1348 6.69      
6 A' 1073 1023 9.74      
7 A' 730 696 22.67      
8 A" 928 885 81.45      
9 A" 835 796 6.39      

Unscaled Zero Point Vibrational Energy (zpe) 8137.2 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 7755.5 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 PBE1PBE/6-31G**
ABC
7.79772 1.08564 0.95296

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.049 0.723 0.000
C2 0.049 -0.587 0.000
H3 -0.686 1.518 0.000
H4 -0.879 -1.166 0.000
H5 0.972 -1.166 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.30951.08282.10502.1022
C21.30952.22921.09481.0897
H31.08282.22922.69093.1547
H42.10501.09482.69091.8518
H52.10221.08973.15471.8518

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.958 C1 C2 H5 122.113
C2 C1 H3 137.234 H4 C2 H5 115.929
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.157      
2 C -0.409      
3 H 0.188      
4 H 0.186      
5 H 0.191      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.598 -0.253 0.000 0.649
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.923 -1.099 0.000
y -1.099 -10.919 0.000
z 0.000 0.000 -14.301
Traceless
 xyz
x 0.687 -1.099 0.000
y -1.099 2.193 0.000
z 0.000 0.000 -2.880
Polar
3z2-r2-5.760
x2-y2-1.004
xy-1.099
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.446 -0.245 0.000
y -0.245 4.401 0.000
z 0.000 0.000 1.291


<r2> (average value of r2) Å2
<r2> 20.174
(<r2>)1/2 4.492