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All results from a given calculation for C2H3 (vinyl)

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 2A'
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-12.977320
Energy at 298.15K-12.978830
HF Energy-12.977320
Nuclear repulsion energy15.729114
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
(Å4/u)
Dep P Dep U
1 A' 3187 3105 2.61      
2 A' 3140 3060 16.27      
3 A' 3026 2949 8.82      
4 A' 1592 1551 2.71      
5 A' 1404 1368 7.29      
6 A' 1055 1028 8.24      
7 A' 718 700 26.63      
8 A" 938 914 107.46      
9 A" 820 799 22.44      

Unscaled Zero Point Vibrational Energy (zpe) 7939.3 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 7736.9 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
7.81351 1.04900 0.92483

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 0.066 0.759 0.000
C2 0.066 -0.575 0.000
H3 -0.658 1.572 0.000
H4 -0.862 -1.160 0.000
H5 0.994 -1.149 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.33441.08812.13182.1218
C21.33442.26571.09711.0911
H31.08812.26572.73953.1828
H42.13181.09712.73951.8564
H52.12181.09113.18281.8564

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 122.213 C1 C2 H5 121.721
C2 C1 H3 138.320 H4 C2 H5 116.066
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.114      
2 C -0.312      
3 H 0.134      
4 H 0.143      
5 H 0.149      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.701 -0.291 0.000 0.759
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.357 -1.286 0.000
y -1.286 -11.302 0.000
z 0.000 0.000 -14.951
Traceless
 xyz
x 0.770 -1.286 0.000
y -1.286 2.351 0.000
z 0.000 0.000 -3.121
Polar
3z2-r2-6.242
x2-y2-1.054
xy-1.286
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.673 -0.172 0.000
y -0.172 5.049 -0.000
z 0.000 -0.000 1.749


<r2> (average value of r2) Å2
<r2> 19.002
(<r2>)1/2 4.359