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All results from a given calculation for CH2CO (Ketene)

using model chemistry: CCSD(T)=FULL/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(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-152.246401
Energy at 298.15K-152.247412
HF Energy-151.745373
Nuclear repulsion energy57.717552
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(T)=FULL/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 3195 3103        
2 A1 2157 2095        
3 A1 1406 1366        
4 A1 1140 1107        
5 B1 582 565        
6 B1 492 478        
7 B2 3308 3213        
8 B2 977 949        
9 B2 426 414        

Unscaled Zero Point Vibrational Energy (zpe) 6841.6 cm-1
Scaled (by 0.9712) Zero Point Vibrational Energy (zpe) 6644.6 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(T)=FULL/aug-cc-pVDZ
ABC
9.21004 0.33315 0.32152

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.230
C2 0.000 0.000 0.106
O3 0.000 0.000 1.283
H4 0.000 0.953 -1.760
H5 0.000 -0.953 -1.760

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.33602.51381.09021.0902
C21.33601.17792.09482.0948
O32.51381.17793.18903.1890
H41.09022.09483.18901.9059
H51.09022.09483.18901.9059

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 119.059
C2 C1 H5 119.059 H4 C1 H5 121.882
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability