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All results from a given calculation for C2H3 (vinyl)

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-76.878343
Energy at 298.15K-76.879782
HF Energy-76.878343
Nuclear repulsion energy27.926738
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 BLYP/STO-3G
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' 3346 3096 0.73      
2 A' 3325 3076 2.21      
3 A' 3205 2965 11.41      
4 A' 1698 1571 3.99      
5 A' 1484 1373 2.65      
6 A' 1138 1053 6.82      
7 A' 774 716 9.92      
8 A" 940 870 36.42      
9 A" 841 778 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 8375.7 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 7749.2 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 BLYP/STO-3G
ABC
7.35740 1.05748 0.92459

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.053 0.738 0.000
C2 0.053 -0.592 0.000
H3 -0.752 1.501 0.000
H4 -0.879 -1.199 0.000
H5 0.992 -1.181 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.32991.10942.15012.1363
C21.32992.24251.11301.1083
H31.10942.24252.70343.1992
H42.15011.11302.70341.8715
H52.13631.10833.19921.8715

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 123.082 C1 C2 H5 122.104
C2 C1 H3 133.453 H4 C2 H5 114.815
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.060      
2 C -0.183      
3 H 0.080      
4 H 0.081      
5 H 0.082      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.406 -0.099 0.000 0.418
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.095 -0.649 0.000
y -0.649 -10.750 0.000
z 0.000 0.000 -12.670
Traceless
 xyz
x 0.614 -0.649 0.000
y -0.649 1.133 0.000
z 0.000 0.000 -1.748
Polar
3z2-r2-3.495
x2-y2-0.346
xy-0.649
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.320 -0.265 0.000
y -0.265 2.599 0.000
z 0.000 0.000 0.449


<r2> (average value of r2) Å2
<r2> 19.999
(<r2>)1/2 4.472