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All results from a given calculation for C2H3 (vinyl)

using model chemistry: CCD/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 CCD/6-31G**
 hartrees
Energy at 0K-77.654641
Energy at 298.15K-77.656236
HF Energy-77.394728
Nuclear repulsion energy28.660012
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 CCD/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' 3341 3132 1.58      
2 A' 3287 3082 7.41      
3 A' 3188 2989 4.03      
4 A' 1812 1699 1.26      
5 A' 1466 1375 5.16      
6 A' 1127 1057 10.22      
7 A' 774 726 17.01      
8 A" 1046 981 72.55      
9 A" 970 909 9.25      

Unscaled Zero Point Vibrational Energy (zpe) 8505.3 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 7974.6 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 CCD/6-31G**
ABC
7.81852 1.11178 0.97337

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.050 0.715 0.000
C2 0.050 -0.580 0.000
H3 -0.694 1.494 0.000
H4 -0.875 -1.150 0.000
H5 0.968 -1.154 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.29471.07782.08212.0822
C21.29472.20381.08701.0826
H31.07782.20382.65093.1269
H42.08211.08702.65091.8430
H52.08221.08263.12691.8430

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.652 C1 C2 H5 122.041
C2 C1 H3 136.329 H4 C2 H5 116.307
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability