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All results from a given calculation for CH2CO (Ketene)

using model chemistry: B2PLYP=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULL/3-21G*
 hartrees
Energy at 0K-151.567959
Energy at 298.15K-151.569169
HF Energy-151.459340
Nuclear repulsion energy57.875984
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 B2PLYP=FULL/3-21G*
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 25.07 85.57 0.12 0.21
2 A1 2177 2177 336.44 1.36 0.52 0.69
3 A1 1481 1481 27.05 6.97 0.74 0.85
4 A1 1171 1171 4.21 26.02 0.31 0.47
5 B1 722 722 199.92 0.85 0.75 0.86
6 B1 588 588 1.90 2.97 0.75 0.86
7 B2 3312 3312 5.85 59.10 0.75 0.86
8 B2 1068 1068 9.99 0.04 0.75 0.86
9 B2 487 487 0.87 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7116.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7116.0 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 B2PLYP=FULL/3-21G*
ABC
9.63752 0.33525 0.32398

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.218
C2 0.000 0.000 0.093
O3 0.000 0.000 1.285
H4 0.000 0.932 -1.764
H5 0.000 -0.932 -1.764

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.31142.50261.07991.0799
C21.31141.19122.07802.0780
O32.50261.19123.18793.1879
H41.07992.07803.18791.8631
H51.07992.07803.18791.8631

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 120.383
C2 C1 H5 120.383 H4 C1 H5 119.235
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability