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All results from a given calculation for C2H3 (vinyl)

using model chemistry: CCSD(T)=FULL/cc-pCVDZ

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(T)=FULL/cc-pCVDZ
 hartrees
Energy at 0K-77.753004
Energy at 298.15K-77.754512
HF Energy-77.398996
Nuclear repulsion energy28.040345
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(T)=FULL/cc-pCVDZ
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' 3246 3145        
2 A' 3205 3105        
3 A' 3091 2995        
4 A' 1632 1581        
5 A' 1384 1341        
6 A' 1074 1041        
7 A' 732 709        
8 A" 905 876        
9 A" 797 772        

Unscaled Zero Point Vibrational Energy (zpe) 8033.5 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 7782.9 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(T)=FULL/cc-pCVDZ
ABC
7.53235 1.06043 0.92956

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.051 0.734 0.000
C2 0.051 -0.596 0.000
H3 -0.710 1.520 0.000
H4 -0.892 -1.169 0.000
H5 0.983 -1.176 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.32981.09472.12392.1254
C21.32982.24921.10361.0979
H31.09472.24922.69593.1843
H42.12391.10362.69591.8751
H52.12541.09793.18431.8751

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.297 C1 C2 H5 121.908
C2 C1 H3 135.945 H4 C2 H5 116.796
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability