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All results from a given calculation for C2H3 (vinyl)

using model chemistry: CCSD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at CCSD/TZVP
 hartrees
Energy at 0K-77.696993
Energy at 298.15K-77.698512
HF Energy-77.418470
Nuclear repulsion energy28.407462
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 CCSD/TZVP
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' 3287 3137 0.66      
2 A' 3217 3070 5.33      
3 A' 3114 2972 4.86      
4 A' 1656 1580 1.55      
5 A' 1426 1361 5.20      
6 A' 1094 1044 7.39      
7 A' 749 715 16.64      
8 A" 925 883 85.16      
9 A" 807 770 2.14      

Unscaled Zero Point Vibrational Energy (zpe) 8137.5 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 7766.4 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 CCSD/TZVP
ABC
7.78077 1.08673 0.95355

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.050 0.724 0.000
C2 0.050 -0.588 0.000
H3 -0.694 1.506 0.000
H4 -0.878 -1.160 0.000
H5 0.971 -1.161 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.31251.07862.10012.0980
C21.31252.22191.08961.0843
H31.07862.22192.67183.1432
H42.10011.08962.67181.8483
H52.09801.08433.14321.8483

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.641 C1 C2 H5 121.880
C2 C1 H3 136.418 H4 C2 H5 116.479
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability