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All results from a given calculation for CH2CO (Ketene)

using model chemistry: CCSD/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-152.218503
Energy at 298.15K-152.219571
HF Energy-151.746457
Nuclear repulsion energy57.929274
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/aug-cc-pVDZ
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 3212 3095 22.85      
2 A1 2190 2110 675.26      
3 A1 1421 1369 10.89      
4 A1 1158 1115 5.36      
5 B1 603 581 64.45      
6 B1 522 503 46.14      
7 B2 3327 3205 4.37      
8 B2 999 962 1.71      
9 B2 442 426 3.47      

Unscaled Zero Point Vibrational Energy (zpe) 6937.6 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 6683.7 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/aug-cc-pVDZ
ABC
9.22769 0.33566 0.32388

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.226
C2 0.000 0.000 0.106
O3 0.000 0.000 1.278
H4 0.000 0.952 -1.755
H5 0.000 -0.952 -1.755

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.33242.50411.08891.0889
C21.33241.17182.09042.0904
O32.50411.17183.17873.1787
H41.08892.09043.17871.9040
H51.08892.09043.17871.9040

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 119.042
C2 C1 H5 119.042 H4 C1 H5 121.916
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability