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All results from a given calculation for CH2CO (Ketene)

using model chemistry: QCISD(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 QCISD(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-152.247329
Energy at 298.15K-152.248344
HF Energy-151.745214
Nuclear repulsion energy57.691014
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 QCISD(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 3194 3098        
2 A1 2152 2087        
3 A1 1401 1359        
4 A1 1135 1101        
5 B1 581 564        
6 B1 490 476        
7 B2 3308 3209        
8 B2 981 952        
9 B2 433 420        

Unscaled Zero Point Vibrational Energy (zpe) 6837.1 cm-1
Scaled (by 0.9701) Zero Point Vibrational Energy (zpe) 6632.6 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 QCISD(T)=FULL/aug-cc-pVDZ
ABC
9.21162 0.33284 0.32123

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.231
C2 0.000 0.000 0.105
O3 0.000 0.000 1.284
H4 0.000 0.953 -1.761
H5 0.000 -0.953 -1.761

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.33622.51501.09021.0902
C21.33621.17882.09512.0951
O32.51501.17883.19033.1903
H41.09022.09513.19031.9057
H51.09022.09513.19031.9057

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 119.071
C2 C1 H5 119.071 H4 C1 H5 121.857
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability