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All results from a given calculation for CH2CO (Ketene)

using model chemistry: HSEh1PBE/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HSEh1PBE/6-31G
 hartrees
Energy at 0K-152.383433
Energy at 298.15K-152.384558
HF Energy-152.383433
Nuclear repulsion energy57.928667
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 HSEh1PBE/6-31G
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 3239 3098 31.87 100.54 0.12 0.21
2 A1 2198 2103 486.31 0.71 0.69 0.82
3 A1 1448 1385 21.01 4.96 0.70 0.82
4 A1 1179 1128 14.18 28.77 0.30 0.46
5 B1 742 710 190.61 0.90 0.75 0.86
6 B1 521 498 6.63 3.39 0.75 0.86
7 B2 3335 3190 6.16 61.51 0.75 0.86
8 B2 1030 985 11.70 0.02 0.75 0.86
9 B2 436 417 1.72 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7063.7 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 6757.2 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 HSEh1PBE/6-31G
ABC
9.60564 0.33595 0.32459

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.217
C2 0.000 0.000 0.094
O3 0.000 0.000 1.283
H4 0.000 0.933 -1.764
H5 0.000 -0.933 -1.764

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.31142.49971.08161.0816
C21.31141.18832.07952.0795
O32.49971.18833.18643.1864
H41.08162.07953.18641.8662
H51.08162.07953.18641.8662

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 120.378
C2 C1 H5 120.378 H4 C1 H5 119.244
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.457      
2 C 0.357      
3 O -0.345      
4 H 0.223      
5 H 0.223      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.913 1.913
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.607 0.000 0.000
y 0.000 -15.011 0.000
z 0.000 0.000 -18.303
Traceless
 xyz
x -1.950 0.000 0.000
y 0.000 3.444 0.000
z 0.000 0.000 -1.494
Polar
3z2-r2-2.988
x2-y2-3.596
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.241 0.000 0.000
y 0.000 2.084 0.000
z 0.000 0.000 5.529


<r2> (average value of r2) Å2
<r2> 40.877
(<r2>)1/2 6.394