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All results from a given calculation for C2H3 (vinyl)

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-77.425011
Energy at 298.15K-77.426549
HF Energy-77.425011
Nuclear repulsion energy28.447587
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 B1B95/3-21G
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' 3269 3127 2.18      
2 A' 3176 3038 4.68      
3 A' 3081 2947 2.26      
4 A' 1671 1599 2.69      
5 A' 1449 1386 9.39      
6 A' 1095 1048 10.13      
7 A' 748 715 26.24      
8 A" 952 911 93.13      
9 A" 860 822 18.65      

Unscaled Zero Point Vibrational Energy (zpe) 8149.7 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 7796.9 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 B1B95/3-21G
ABC
7.85733 1.08949 0.95682

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.049 0.721 0.000
C2 0.049 -0.585 0.000
H3 -0.684 1.515 0.000
H4 -0.873 -1.172 0.000
H5 0.971 -1.163 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.30631.08032.10562.0973
C21.30632.22391.09291.0877
H31.08032.22392.69283.1475
H42.10561.09292.69281.8438
H52.09731.08773.14751.8438

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 122.465 C1 C2 H5 122.077
C2 C1 H3 137.243 H4 C2 H5 115.458
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.174      
2 C -0.493      
3 H 0.218      
4 H 0.220      
5 H 0.229      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.645 -0.286 0.000 0.706
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.021 -1.155 0.000
y -1.155 -10.990 0.000
z 0.000 0.000 -14.488
Traceless
 xyz
x 0.718 -1.155 0.000
y -1.155 2.264 0.000
z 0.000 0.000 -2.982
Polar
3z2-r2-5.965
x2-y2-1.030
xy-1.155
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.243 -0.248 0.000
y -0.248 4.202 0.000
z 0.000 0.000 0.965


<r2> (average value of r2) Å2
<r2> 20.202
(<r2>)1/2 4.495