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All results from a given calculation for CH2CO (Ketene)

using model chemistry: CCSD/daug-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 CCSD/daug-cc-pVTZ
 hartrees
Energy at 0K-152.342837
Energy at 298.15K-152.343919
HF Energy-151.786800
Nuclear repulsion energy58.602245
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/daug-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 3217 3217 26.52      
2 A1 2223 2223 692.27      
3 A1 1436 1436 13.20      
4 A1 1173 1173 4.26      
5 B1 611 611 59.74      
6 B1 541 541 51.54      
7 B2 3322 3322 6.86      
8 B2 1007 1007 2.31      
9 B2 445 445 3.34      

Unscaled Zero Point Vibrational Energy (zpe) 6987.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6987.0 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/daug-cc-pVTZ
ABC
9.43958 0.34371 0.33164

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.211
C2 0.000 0.000 0.104
O3 0.000 0.000 1.264
H4 0.000 0.941 -1.733
H5 0.000 -0.941 -1.733

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.31462.47471.07661.0766
C21.31461.16012.06422.0642
O32.47471.16013.14153.1415
H41.07662.06423.14151.8825
H51.07662.06423.14151.8825

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 119.038
C2 C1 H5 119.038 H4 C1 H5 121.924
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability