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All results from a given calculation for CH2CO (Ketene)

using model chemistry: LSDA/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 LSDA/6-31G*
 hartrees
Energy at 0K-151.773543
Energy at 298.15K-151.774538
Nuclear repulsion energy58.214374
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 LSDA/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 3148 3090 40.32      
2 A1 2256 2213 449.58      
3 A1 1372 1346 19.90      
4 A1 1161 1139 13.04      
5 B1 556 546 10.75      
6 B1 529 519 149.09      
7 B2 3238 3177 16.80      
8 B2 946 928 11.54      
9 B2 424 416 0.76      

Unscaled Zero Point Vibrational Energy (zpe) 6814.8 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 6687.3 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 LSDA/6-31G*
ABC
9.35518 0.33998 0.32806

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.211
C2 0.000 0.000 0.100
O3 0.000 0.000 1.273
H4 0.000 0.946 -1.757
H5 0.000 -0.946 -1.757

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.31102.48451.09151.0915
C21.31101.17342.08332.0833
O32.48451.17343.17393.1739
H41.09152.08333.17391.8910
H51.09152.08333.17391.8910

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 119.975
C2 C1 H5 119.975 H4 C1 H5 120.051
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.555      
2 C 0.431      
3 O -0.325      
4 H 0.224      
5 H 0.224      


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 -1.515 1.515
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.452 0.000 0.000
y 0.000 -14.842 0.000
z 0.000 0.000 -17.242
Traceless
 xyz
x -2.410 0.000 0.000
y 0.000 3.005 0.000
z 0.000 0.000 -0.595
Polar
3z2-r2-1.191
x2-y2-3.610
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.493 0.000 0.000
y 0.000 2.315 0.000
z 0.000 0.000 5.425


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000