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All results from a given calculation for C2H3 (vinyl)

using model chemistry: QCISD(TQ)=FULL/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 QCISD(TQ)=FULL/6-31G*
 hartrees
Energy at 0K-77.659100
Energy at 298.15K-77.660603
HF Energy-77.389766
Nuclear repulsion energy28.199673
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/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' 3260 3260        
2 A' 3197 3197        
3 A' 3094 3094        
4 A' 1643 1643        
5 A' 1424 1424        
6 A' 1095 1095        
7 A' 755 755        
8 A" 911 911        
9 A" 797 797        

Unscaled Zero Point Vibrational Energy (zpe) 8088.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8088.1 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/6-31G*
ABC
7.70032 1.06943 0.93901

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.051 0.731 0.000
C2 0.051 -0.592 0.000
H3 -0.703 1.512 0.000
H4 -0.879 -1.172 0.000
H5 0.974 -1.172 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.32331.08542.11832.1153
C21.32332.23531.09591.0905
H31.08542.23532.69023.1651
H42.11831.09592.69021.8535
H52.11531.09053.16511.8535

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.955 C1 C2 H5 122.114
C2 C1 H3 136.030 H4 C2 H5 115.931
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability