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All results from a given calculation for C2H3 (vinyl)

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-77.475984
Energy at 298.15K-77.477521
HF Energy-77.475984
Nuclear repulsion energy28.404654
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/3-21G
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' 3252 3138 2.08      
2 A' 3154 3043 5.97      
3 A' 3061 2954 3.75      
4 A' 1663 1605 2.26      
5 A' 1458 1407 8.23      
6 A' 1101 1062 9.93      
7 A' 750 724 25.17      
8 A" 951 918 83.82      
9 A" 849 819 18.69      

Unscaled Zero Point Vibrational Energy (zpe) 8119.3 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 7834.3 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/3-21G
ABC
7.86321 1.08514 0.95355

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.049 0.723 0.000
C2 0.049 -0.586 0.000
H3 -0.683 1.518 0.000
H4 -0.873 -1.175 0.000
H5 0.971 -1.165 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.30861.08092.11012.1010
C21.30862.22781.09431.0889
H31.08092.22782.70053.1521
H42.11011.09432.70051.8441
H52.10101.08893.15211.8441

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 122.593 C1 C2 H5 122.136
C2 C1 H3 137.406 H4 C2 H5 115.270
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.161      
2 C -0.455      
3 H 0.202      
4 H 0.203      
5 H 0.210      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.620 -0.273 0.000 0.678
CHELPG        
AIM        
ESP -0.619 -0.270 0.000 0.675


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.091 -1.114 0.000
y -1.114 -11.084 0.000
z 0.000 0.000 -14.459
Traceless
 xyz
x 0.681 -1.114 0.000
y -1.114 2.191 0.000
z 0.000 0.000 -2.871
Polar
3z2-r2-5.743
x2-y2-1.007
xy-1.114
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.243 -0.256 0.000
y -0.256 4.210 -0.000
z 0.000 -0.000 0.963


<r2> (average value of r2) Å2
<r2> 20.273
(<r2>)1/2 4.503