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All results from a given calculation for CH2CO (Ketene)

using model chemistry: MP2=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-152.367255
Energy at 298.15K-152.368330
HF Energy-151.784251
Nuclear repulsion energy58.608132
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 MP2=FULL/cc-pVTZ
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 3259 3094 33.45 103.60 0.13 0.23
2 A1 2233 2120 502.62 3.76 0.70 0.82
3 A1 1431 1359 17.77 3.41 0.26 0.42
4 A1 1168 1109 1.63 34.10 0.25 0.41
5 B1 598 568 34.82 0.00 0.75 0.86
6 B1 544 516 96.48 4.07 0.75 0.86
7 B2 3349 3180 13.06 48.56 0.75 0.86
8 B2 993 943 4.62 0.06 0.75 0.86
9 B2 437 415 2.18 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7005.5 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 6651.0 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 MP2=FULL/cc-pVTZ
ABC
9.52367 0.34379 0.33181

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.210
C2 0.000 0.000 0.100
O3 0.000 0.000 1.265
H4 0.000 0.937 -1.729
H5 0.000 -0.937 -1.729

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.31062.47511.07131.0713
C21.31061.16452.05572.0557
O32.47511.16453.13743.1374
H41.07132.05573.13741.8742
H51.07132.05573.13741.8742

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 118.986
C2 C1 H5 118.986 H4 C1 H5 122.028
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability