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All results from a given calculation for CH2CO (Ketene)

using model chemistry: QCISD/daug-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/daug-cc-pVDZ
 hartrees
Energy at 0K-152.223375
Energy at 298.15K-152.224458
HF Energy-151.747002
Nuclear repulsion energy57.873551
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/daug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3208 3208 22.47      
2 A1 2172 2172 635.12      
3 A1 1419 1419 10.97      
4 A1 1151 1151 5.05      
5 B1 615 615 81.78      
6 B1 535 535 26.62      
7 B2 3324 3324 4.17      
8 B2 997 997 1.71      
9 B2 440 440 3.19      

Unscaled Zero Point Vibrational Energy (zpe) 6931.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6931.1 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/daug-cc-pVDZ
ABC
9.24797 0.33496 0.32326

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.227
C2 0.000 0.000 0.106
O3 0.000 0.000 1.280
H4 0.000 0.951 -1.756
H5 0.000 -0.951 -1.756

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.33272.50671.08851.0885
C21.33271.17402.09102.0910
O32.50671.17403.18173.1817
H41.08852.09103.18171.9019
H51.08852.09103.18171.9019

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 119.112
C2 C1 H5 119.112 H4 C1 H5 121.776
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability