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All results from a given calculation for C2H3 (vinyl)

using model chemistry: BLYP/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 BLYP/3-21G*
 hartrees
Energy at 0K-77.432918
Energy at 298.15K-77.434407
HF Energy-77.432918
Nuclear repulsion energy28.217281
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/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' 3164 3144 3.04      
2 A' 3059 3039 7.54      
3 A' 2960 2941 6.31      
4 A' 1611 1601 1.95      
5 A' 1423 1413 7.71      
6 A' 1067 1060 10.17      
7 A' 725 720 26.20      
8 A" 906 900 82.38      
9 A" 796 791 11.81      

Unscaled Zero Point Vibrational Energy (zpe) 7855.3 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 7804.2 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/3-21G*
ABC
7.77296 1.07078 0.94113

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.049 0.727 0.000
C2 0.049 -0.589 0.000
H3 -0.686 1.530 0.000
H4 -0.878 -1.187 0.000
H5 0.976 -1.175 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.31621.08852.12692.1163
C21.31622.24271.10351.0971
H31.08852.24272.72333.1750
H42.12691.10352.72331.8549
H52.11631.09713.17501.8549

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 122.805 C1 C2 H5 122.287
C2 C1 H3 137.498 H4 C2 H5 114.908
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.147      
2 C -0.422      
3 H 0.185      
4 H 0.188      
5 H 0.196      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.608 -0.292 0.000 0.674
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.133 -1.101 0.000
y -1.101 -11.113 0.000
z 0.000 0.000 -14.413
Traceless
 xyz
x 0.630 -1.101 0.000
y -1.101 2.160 0.000
z 0.000 0.000 -2.790
Polar
3z2-r2-5.579
x2-y2-1.020
xy-1.101
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.308 -0.254 0.000
y -0.254 4.280 0.000
z 0.000 0.000 0.985


<r2> (average value of r2) Å2
<r2> 20.449
(<r2>)1/2 4.522