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All results from a given calculation for CH2CO (Ketene)

using model chemistry: CCSD/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD/Def2TZVPP
 hartrees
Energy at 0K-152.336822
Energy at 298.15K-152.337915
HF Energy-151.791160
Nuclear repulsion energy58.640782
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 CCSD/Def2TZVPP
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 3225 3225 25.58      
2 A1 2232 2232 665.61      
3 A1 1444 1444 13.97      
4 A1 1177 1177 4.29      
5 B1 609 609 62.97      
6 B1 548 548 60.98      
7 B2 3331 3331 7.20      
8 B2 1013 1013 3.62      
9 B2 448 448 3.81      

Unscaled Zero Point Vibrational Energy (zpe) 7013.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7013.5 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 CCSD/Def2TZVPP
ABC
9.46210 0.34407 0.33200

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.210
C2 0.000 0.000 0.104
O3 0.000 0.000 1.263
H4 0.000 0.940 -1.733
H5 0.000 -0.940 -1.733

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.31452.47321.07581.0758
C21.31451.15872.06392.0639
O32.47321.15873.14023.1402
H41.07582.06393.14021.8803
H51.07582.06393.14021.8803

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 119.081
C2 C1 H5 119.081 H4 C1 H5 121.838
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability