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All results from a given calculation for CH2CO (Ketene)

using model chemistry: CCD/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-152.336365
Energy at 298.15K-152.337471
HF Energy-151.786844
Nuclear repulsion energy58.693912
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 CCD/aug-cc-pVTZ
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 3222 3084 28.15      
2 A1 2247 2150 724.43      
3 A1 1440 1378 12.97      
4 A1 1180 1130 4.10      
5 B1 614 588 62.03      
6 B1 550 527 50.60      
7 B2 3327 3184 7.06      
8 B2 1012 968 2.44      
9 B2 450 431 3.44      

Unscaled Zero Point Vibrational Energy (zpe) 7021.2 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 6719.3 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 CCD/aug-cc-pVTZ
ABC
9.44413 0.34481 0.33266

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.209
C2 0.000 0.000 0.104
O3 0.000 0.000 1.261
H4 0.000 0.941 -1.731
H5 0.000 -0.941 -1.731

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.31332.47061.07631.0763
C21.31331.15722.06282.0628
O32.47061.15723.13733.1373
H41.07632.06283.13731.8821
H51.07632.06283.13731.8821

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 119.031
C2 C1 H5 119.031 H4 C1 H5 121.938
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability