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All results from a given calculation for C2H3 (vinyl)

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-77.856368
Energy at 298.15K-77.857865
HF Energy-77.856368
Nuclear repulsion energy28.435986
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 B1B95/6-31G**
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 3121 2.30      
2 A' 3188 3044 5.48      
3 A' 3088 2948 3.93      
4 A' 1684 1608 1.77      
5 A' 1394 1331 6.81      
6 A' 1055 1007 10.17      
7 A' 717 685 22.36      
8 A" 919 878 74.82      
9 A" 824 787 6.85      

Unscaled Zero Point Vibrational Energy (zpe) 8068.9 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 7704.2 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 B1B95/6-31G**
ABC
7.83615 1.08919 0.95628

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.049 0.721 0.000
C2 0.049 -0.586 0.000
H3 -0.683 1.518 0.000
H4 -0.878 -1.165 0.000
H5 0.970 -1.165 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.30671.08192.10162.0988
C21.30672.22721.09331.0882
H31.08192.22722.69013.1511
H42.10161.09332.69011.8485
H52.09881.08823.15111.8485

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 122.001 C1 C2 H5 122.151
C2 C1 H3 137.443 H4 C2 H5 115.848
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.120      
2 C -0.289      
3 H 0.136      
4 H 0.134      
5 H 0.139      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.587 -0.262 0.000 0.642
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.920 -1.073 0.000
y -1.073 -10.946 0.000
z 0.000 0.000 -14.172
Traceless
 xyz
x 0.639 -1.073 0.000
y -1.073 2.100 0.000
z 0.000 0.000 -2.739
Polar
3z2-r2-5.478
x2-y2-0.974
xy-1.073
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.497 -0.251 0.000
y -0.251 4.447 0.000
z 0.000 0.000 1.328


<r2> (average value of r2) Å2
<r2> 20.114
(<r2>)1/2 4.485