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All results from a given calculation for CH2CO (Ketene)

using model chemistry: QCISD(T)=FULL/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 QCISD(T)=FULL/Def2TZVPP
 hartrees
Energy at 0K-152.422085
Energy at 298.15K-152.423128
HF Energy-151.790391
Nuclear repulsion energy58.454779
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/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 3202 3202        
2 A1 2191 2191        
3 A1 1426 1426        
4 A1 1153 1153        
5 B1 590 590        
6 B1 519 519        
7 B2 3305 3305        
8 B2 997 997        
9 B2 434 434        

Unscaled Zero Point Vibrational Energy (zpe) 6908.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6908.6 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/Def2TZVPP
ABC
9.48160 0.34175 0.32986

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.214
C2 0.000 0.000 0.103
O3 0.000 0.000 1.268
H4 0.000 0.939 -1.738
H5 0.000 -0.939 -1.738

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.31722.48171.07571.0757
C21.31721.16452.06722.0672
O32.48171.16453.14943.1494
H41.07572.06723.14941.8784
H51.07572.06723.14941.8784

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 119.176
C2 C1 H5 119.176 H4 C1 H5 121.648
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability