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All results from a given calculation for CH2CO (Ketene)

using model chemistry: CCD/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-152.325418
Energy at 298.15K-152.326520
HF Energy-151.783975
Nuclear repulsion energy58.762302
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/6-311+G(3df,2p)
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 3039 28.33      
2 A1 2257 2129 730.98      
3 A1 1440 1358 13.95      
4 A1 1181 1114 3.81      
5 B1 610 575 54.44      
6 B1 552 520 60.17      
7 B2 3332 3142 7.09      
8 B2 1011 953 2.83      
9 B2 451 425 3.59      

Unscaled Zero Point Vibrational Energy (zpe) 7027.1 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 6627.2 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/6-311+G(3df,2p)
ABC
9.44714 0.34560 0.33340

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.208
C2 0.000 0.000 0.105
O3 0.000 0.000 1.260
H4 0.000 0.941 -1.731
H5 0.000 -0.941 -1.731

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.31292.46751.07651.0765
C21.31291.15462.06302.0630
O32.46751.15463.13513.1351
H41.07652.06303.13511.8818
H51.07652.06303.13511.8818

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 119.072
C2 C1 H5 119.072 H4 C1 H5 121.856
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability