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All results from a given calculation for C2H3 (vinyl)

using model chemistry: MP2=FULL/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at MP2=FULL/aug-cc-pVQZ
 hartrees
Energy at 0K-77.788970
Energy at 298.15K-77.790553
HF Energy-77.423710
Nuclear repulsion energy28.957799
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 MP2=FULL/aug-cc-pVQZ
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' 3330 3185 1.39      
2 A' 3250 3108 0.47      
3 A' 3145 3008 0.69      
4 A' 1941 1856 5.49      
5 A' 1428 1366 11.36      
6 A' 1078 1031 8.24      
7 A' 727 696 19.43      
8 A" 1066 1019 72.66      
9 A" 991 947 31.30      

Unscaled Zero Point Vibrational Energy (zpe) 8478.2 cm-1
Scaled (by 0.9564) Zero Point Vibrational Energy (zpe) 8108.6 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 MP2=FULL/aug-cc-pVQZ
ABC
7.96326 1.13783 0.99558

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.049 0.702 0.000
C2 0.049 -0.573 0.000
H3 -0.665 1.503 0.000
H4 -0.882 -1.128 0.000
H5 0.961 -1.150 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.27531.07252.05372.0643
C21.27532.19511.08421.0791
H31.07252.19512.64003.1111
H42.05371.08422.64001.8435
H52.06431.07913.11111.8435

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 120.807 C1 C2 H5 122.300
C2 C1 H3 138.280 H4 C2 H5 116.893
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability