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All results from a given calculation for CH2CO (Ketene)

using model chemistry: B2PLYP=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-152.496419
Energy at 298.15K-152.497503
HF Energy-152.320323
Nuclear repulsion energy58.561531
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 B2PLYP=FULL/6-31G(2df,p)
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 3231 3231 28.73 92.73 0.11 0.20
2 A1 2239 2239 479.14 2.84 0.42 0.60
3 A1 1423 1423 16.33 3.12 0.57 0.73
4 A1 1173 1173 4.75 30.75 0.27 0.43
5 B1 599 599 10.65 1.17 0.75 0.86
6 B1 548 548 110.26 2.28 0.75 0.86
7 B2 3332 3332 9.68 52.90 0.75 0.86
8 B2 1001 1001 5.44 0.06 0.75 0.86
9 B2 451 451 2.63 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6998.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6998.9 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 B2PLYP=FULL/6-31G(2df,p)
ABC
9.51148 0.34345 0.33148

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G(2df,p)

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 0.101
O3 0.000 0.000 1.266
H4 0.000 0.938 -1.739
H5 0.000 -0.938 -1.739

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.30922.47411.07761.0776
C21.30921.16502.06522.0652
O32.47411.16503.14793.1479
H41.07762.06523.14791.8754
H51.07762.06523.14791.8754

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 119.518
C2 C1 H5 119.518 H4 C1 H5 120.963
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability