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All results from a given calculation for CH2CO (Ketene)

using model chemistry: CID/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CID/cc-pVDZ
 hartrees
Energy at 0K-152.142143
Energy at 298.15K-152.143274
HF Energy-151.740093
Nuclear repulsion energy58.448676
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 CID/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 A1 3292 3042 28.44      
2 A1 2303 2128 689.23      
3 A1 1463 1352 11.74      
4 A1 1207 1115 6.91      
5 B1 622 575 46.01      
6 B1 566 523 98.19      
7 B2 3409 3150 8.21      
8 B2 1029 951 6.00      
9 B2 460 425 4.55      

Unscaled Zero Point Vibrational Energy (zpe) 7175.8 cm-1
Scaled (by 0.924) Zero Point Vibrational Energy (zpe) 6630.4 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 CID/cc-pVDZ
ABC
9.29672 0.34195 0.32982

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.215
C2 0.000 0.000 0.107
O3 0.000 0.000 1.266
H4 0.000 0.948 -1.741
H5 0.000 -0.948 -1.741

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.32172.48041.08501.0850
C21.32171.15872.07772.0777
O32.48041.15873.15333.1533
H41.08502.07773.15331.8970
H51.08502.07773.15331.8970

picture of Ketene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 180.000 C2 C1 H4 119.053
C2 C1 H5 119.053 H4 C1 H5 121.895
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability