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All results from a given calculation for C2H3 (vinyl)

using model chemistry: QCISD(TQ)=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at QCISD(TQ)=FULL/cc-pVDZ
 hartrees
Energy at 0K-77.681315
Energy at 298.15K-77.682803
HF Energy-77.398070
Nuclear repulsion energy27.975941
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 QCISD(TQ)=FULL/cc-pVDZ
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' 3248 3248        
2 A' 3201 3201        
3 A' 3089 3089        
4 A' 1620 1620        
5 A' 1382 1382        
6 A' 1073 1073        
7 A' 730 730        
8 A" 896 896        
9 A" 777 777        

Unscaled Zero Point Vibrational Energy (zpe) 8007.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8007.7 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 QCISD(TQ)=FULL/cc-pVDZ
ABC
7.51205 1.05464 0.92481

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.052 0.736 0.000
C2 0.052 -0.598 0.000
H3 -0.711 1.522 0.000
H4 -0.892 -1.172 0.000
H5 0.985 -1.179 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.33411.09532.12902.1302
C21.33412.25311.10481.0990
H31.09532.25312.70023.1892
H42.12901.10482.70021.8768
H52.13021.09903.18921.8768

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.316 C1 C2 H5 121.906
C2 C1 H3 135.842 H4 C2 H5 116.778
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability