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All results from a given calculation for CH2CO (Ketene)

using model chemistry: B3PW91/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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-152.551537
Energy at 298.15K-152.552582
HF Energy-152.551537
Nuclear repulsion energy58.307022
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 B3PW91/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 3198 3086 32.02      
2 A1 2250 2172 575.43      
3 A1 1386 1338 14.16      
4 A1 1170 1129 10.43      
5 B1 583 562 15.73      
6 B1 527 508 120.92      
7 B2 3308 3193 13.56      
8 B2 969 935 7.67      
9 B2 438 423 1.84      

Unscaled Zero Point Vibrational Energy (zpe) 6914.6 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 6672.6 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 B3PW91/cc-pVDZ
ABC
9.28656 0.34079 0.32873

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.214
C2 0.000 0.000 0.103
O3 0.000 0.000 1.270
H4 0.000 0.949 -1.748
H5 0.000 -0.949 -1.748

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.31692.48351.08901.0890
C21.31691.16652.08022.0802
O32.48351.16653.16333.1633
H41.08902.08023.16331.8980
H51.08902.08023.16331.8980

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 119.374
C2 C1 H5 119.374 H4 C1 H5 121.253
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.213      
2 C 0.121      
3 O -0.106      
4 H 0.099      
5 H 0.099      


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 -1.311 1.311
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.534 0.000 0.000
y 0.000 -15.012 0.000
z 0.000 0.000 -17.537
Traceless
 xyz
x -2.260 0.000 0.000
y 0.000 3.024 0.000
z 0.000 0.000 -0.764
Polar
3z2-r2-1.528
x2-y2-3.522
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.694 0.000 0.000
y 0.000 2.364 0.000
z 0.000 0.000 5.440


<r2> (average value of r2) Å2
<r2> 40.347
(<r2>)1/2 6.352