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All results from a given calculation for C2H3 (vinyl)

using model chemistry: MP2/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at MP2/6-311+G(3df,2p)
 hartrees
Energy at 0K-77.701848
Energy at 298.15K-77.703431
HF Energy-77.417178
Nuclear repulsion energy28.847037
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 MP2/6-311+G(3df,2p)
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' 3310 3123 1.44      
2 A' 3239 3056 0.56      
3 A' 3135 2957 0.70      
4 A' 1910 1802 5.14      
5 A' 1426 1345 11.24      
6 A' 1083 1022 8.74      
7 A' 733 692 18.76      
8 A" 1055 995 76.88      
9 A" 983 927 28.68      

Unscaled Zero Point Vibrational Energy (zpe) 8436.9 cm-1
Scaled (by 0.9434) Zero Point Vibrational Energy (zpe) 7959.4 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 MP2/6-311+G(3df,2p)
ABC
7.89081 1.12930 0.98791

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.049 0.706 0.000
C2 0.049 -0.575 0.000
H3 -0.674 1.503 0.000
H4 -0.883 -1.135 0.000
H5 0.965 -1.152 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.28081.07642.06322.0715
C21.28082.20051.08741.0823
H31.07642.20052.64643.1205
H42.06321.08742.64641.8478
H52.07151.08233.12051.8478

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 120.977 C1 C2 H5 122.242
C2 C1 H3 137.811 H4 C2 H5 116.781
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability