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All results from a given calculation for CH2CO (Ketene)

using model chemistry: MP2/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-151.955311
Energy at 298.15K-151.956340
HF Energy-151.644665
Nuclear repulsion energy57.130099
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 MP2/6-31G
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 3229 3090 22.89 98.85 0.12 0.21
2 A1 2112 2021 342.12 1.13 0.60 0.75
3 A1 1473 1409 19.95 6.85 0.75 0.86
4 A1 1126 1078 3.57 30.03 0.28 0.44
5 B1 690 661 166.83 0.65 0.75 0.86
6 B1 455 436 14.75 2.72 0.75 0.86
7 B2 3331 3187 2.37 62.91 0.75 0.86
8 B2 1056 1010 7.05 0.00 0.75 0.86
9 B2 414 396 1.93 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6943.0 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 6643.1 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 MP2/6-31G
ABC
9.52655 0.32598 0.31519

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.237
C2 0.000 0.000 0.095
O3 0.000 0.000 1.302
H4 0.000 0.937 -1.783
H5 0.000 -0.937 -1.783

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.33192.53941.08451.0845
C21.33191.20752.09872.0987
O32.53941.20753.22463.2246
H41.08452.09873.22461.8739
H51.08452.09873.22461.8739

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 120.232
C2 C1 H5 120.232 H4 C1 H5 119.536
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability