return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH2CO (Ketene)

using model chemistry: B97D3/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/daug-cc-pVDZ
 hartrees
Energy at 0K-152.533642
Energy at 298.15K-152.534646
HF Energy-152.533642
Nuclear repulsion energy57.966069
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 B97D3/daug-cc-pVDZ
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 3136 3136 22.77 123.64 0.09 0.17
2 A1 2159 2159 567.96 18.23 0.45 0.62
3 A1 1360 1360 15.33 4.11 0.24 0.38
4 A1 1136 1136 6.28 41.32 0.15 0.26
5 B1 574 574 73.26 1.46 0.75 0.86
6 B1 502 502 37.37 3.28 0.75 0.86
7 B2 3240 3240 5.13 55.52 0.75 0.86
8 B2 953 953 2.76 0.07 0.75 0.86
9 B2 421 421 1.39 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6741.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6741.1 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 B97D3/daug-cc-pVDZ
ABC
9.31528 0.33643 0.32471

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.221
C2 0.000 0.000 0.103
O3 0.000 0.000 1.278
H4 0.000 0.948 -1.759
H5 0.000 -0.948 -1.759

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.32372.49951.08941.0894
C21.32371.17582.08862.0886
O32.49951.17583.18153.1815
H41.08942.08863.18151.8951
H51.08942.08863.18151.8951

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 119.567
C2 C1 H5 119.567 H4 C1 H5 120.866
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.382      
2 C 1.279      
3 O -0.367      
4 H -0.647      
5 H -0.647      


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 -1.487 1.487
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.114 0.000 0.000
y 0.000 -15.462 0.000
z 0.000 0.000 -18.002
Traceless
 xyz
x -2.382 0.000 0.000
y 0.000 3.096 0.000
z 0.000 0.000 -0.714
Polar
3z2-r2-1.428
x2-y2-3.652
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.558 0.000 0.000
y 0.000 3.388 0.000
z 0.000 0.000 6.527


<r2> (average value of r2) Å2
<r2> 41.012
(<r2>)1/2 6.404