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All results from a given calculation for C2H3 (vinyl)

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-77.887045
Energy at 298.15K-77.888553
HF Energy-77.887045
Nuclear repulsion energy28.393828
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 mPW1PW91/6-31+G**
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' 3294 3135 0.92      
2 A' 3209 3055 2.82      
3 A' 3105 2956 4.02      
4 A' 1673 1592 2.49      
5 A' 1399 1332 7.50      
6 A' 1060 1009 7.30      
7 A' 723 688 23.22      
8 A" 932 887 96.17      
9 A" 835 794 17.35      

Unscaled Zero Point Vibrational Energy (zpe) 8114.4 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 7723.3 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 mPW1PW91/6-31+G**
ABC
7.84619 1.08426 0.95262

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.049 0.722 0.000
C2 0.049 -0.588 0.000
H3 -0.675 1.525 0.000
H4 -0.881 -1.163 0.000
H5 0.971 -1.165 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.31051.08072.10172.1001
C21.31052.23341.09291.0875
H31.08072.23342.69513.1531
H42.10171.09292.69511.8521
H52.10011.08753.15311.8521

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.701 C1 C2 H5 122.003
C2 C1 H3 137.942 H4 C2 H5 116.296
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.178      
2 C -0.344      
3 H 0.173      
4 H 0.171      
5 H 0.178      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.694 -0.324 0.000 0.766
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.335 -1.288 0.000
y -1.288 -11.298 0.000
z 0.000 0.000 -15.030
Traceless
 xyz
x 0.829 -1.288 0.000
y -1.288 2.384 0.000
z 0.000 0.000 -3.213
Polar
3z2-r2-6.426
x2-y2-1.037
xy-1.288
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.741 -0.081 -0.001
y -0.081 5.020 0.001
z -0.001 0.001 2.400


<r2> (average value of r2) Å2
<r2> 20.491
(<r2>)1/2 4.527