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All results from a given calculation for C2H3 (vinyl)

using model chemistry: QCISD(T)=FULL/aug-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(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-77.693799
Energy at 298.15K-77.695290
HF Energy-77.401037
Nuclear repulsion energy27.994843
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(T)=FULL/aug-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' 3233 3137        
2 A' 3188 3093        
3 A' 3076 2984        
4 A' 1617 1569        
5 A' 1382 1340        
6 A' 1066 1034        
7 A' 726 704        
8 A" 914 887        
9 A" 773 750        

Unscaled Zero Point Vibrational Energy (zpe) 7987.2 cm-1
Scaled (by 0.9701) Zero Point Vibrational Energy (zpe) 7748.4 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 QCISD(T)=FULL/aug-cc-pVDZ
ABC
7.54956 1.05493 0.92559

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.051 0.736 0.000
C2 0.051 -0.598 0.000
H3 -0.707 1.524 0.000
H4 -0.892 -1.169 0.000
H5 0.982 -1.179 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.33401.09372.12582.1289
C21.33402.25361.10291.0969
H31.09372.25362.69943.1871
H42.12581.10292.69941.8743
H52.12891.09693.18711.8743

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.171 C1 C2 H5 121.964
C2 C1 H3 136.109 H4 C2 H5 116.865
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability