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All results from a given calculation for CH2CO (Ketene)

using model chemistry: CCSD=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 CCSD=FULL/Def2TZVPP
 hartrees
Energy at 0K-152.394614
Energy at 298.15K-152.395718
HF Energy-151.791483
Nuclear repulsion energy58.748350
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=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 3227 3227 26.14      
2 A1 2237 2237 670.78      
3 A1 1449 1449 14.47      
4 A1 1179 1179 4.04      
5 B1 616 616 74.72      
6 B1 556 556 50.30      
7 B2 3330 3330 7.46      
8 B2 1017 1017 3.83      
9 B2 449 449 3.83      

Unscaled Zero Point Vibrational Energy (zpe) 7029.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7029.6 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=FULL/Def2TZVPP
ABC
9.50405 0.34530 0.33320

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.208
C2 0.000 0.000 0.104
O3 0.000 0.000 1.261
H4 0.000 0.938 -1.730
H5 0.000 -0.938 -1.730

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.31222.46881.07361.0736
C21.31221.15652.06042.0604
O32.46881.15653.13473.1347
H41.07362.06043.13471.8761
H51.07362.06043.13471.8761

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 119.105
C2 C1 H5 119.105 H4 C1 H5 121.790
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability