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All results from a given calculation for CH2CO (Ketene)

using model chemistry: M06-2X/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 M06-2X/3-21G
 hartrees
Energy at 0K-151.682398
Energy at 298.15K-151.683650
HF Energy-151.682398
Nuclear repulsion energy58.180321
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 M06-2X/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 3250 3115 33.54 81.49 0.12 0.21
2 A1 2241 2148 451.08 0.42 0.66 0.79
3 A1 1472 1412 24.73 4.78 0.67 0.80
4 A1 1207 1157 8.99 24.92 0.33 0.50
5 B1 780 748 221.07 1.28 0.75 0.86
6 B1 603 578 1.48 2.97 0.75 0.86
7 B2 3336 3198 11.37 52.70 0.75 0.86
8 B2 1065 1021 12.84 0.02 0.75 0.86
9 B2 490 470 1.13 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7221.9 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 6923.6 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 M06-2X/3-21G
ABC
9.58243 0.33917 0.32757

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.212
C2 0.000 0.000 0.095
O3 0.000 0.000 1.276
H4 0.000 0.934 -1.755
H5 0.000 -0.934 -1.755

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.30642.48801.08081.0808
C21.30641.18162.07242.0724
O32.48801.18163.17213.1721
H41.08082.07243.17211.8685
H51.08082.07243.17211.8685

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 120.187
C2 C1 H5 120.187 H4 C1 H5 119.626
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.505      
2 C 0.422      
3 O -0.445      
4 H 0.264      
5 H 0.264      


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 -1.641 1.641
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.745 0.000 0.000
y 0.000 -15.118 0.000
z 0.000 0.000 -18.229
Traceless
 xyz
x -2.071 0.000 0.000
y 0.000 3.369 0.000
z 0.000 0.000 -1.298
Polar
3z2-r2-2.596
x2-y2-3.627
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.978 0.000 0.000
y 0.000 1.953 0.000
z 0.000 0.000 5.047


<r2> (average value of r2) Å2
<r2> 40.646
(<r2>)1/2 6.375