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All results from a given calculation for CH2CO (Ketene)

using model chemistry: PBE1PBE/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBE1PBE/TZVP
 hartrees
Energy at 0K-152.480044
Energy at 298.15K-152.481142
HF Energy-152.480044
Nuclear repulsion energy58.774518
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 PBE1PBE/TZVP
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 3206 3076 34.50 108.06 0.14 0.25
2 A1 2267 2175 673.60 6.19 0.67 0.80
3 A1 1412 1355 20.01 4.02 0.14 0.25
4 A1 1187 1139 7.74 32.76 0.26 0.42
5 B1 610 585 123.40 0.59 0.75 0.86
6 B1 565 542 32.19 3.03 0.75 0.86
7 B2 3303 3170 13.79 49.87 0.75 0.86
8 B2 990 950 10.16 0.07 0.75 0.86
9 B2 442 424 2.27 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6990.2 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 6707.8 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 PBE1PBE/TZVP
ABC
9.47857 0.34618 0.33398

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.203
C2 0.000 0.000 0.103
O3 0.000 0.000 1.260
H4 0.000 0.939 -1.737
H5 0.000 -0.939 -1.737

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.30602.46341.08031.0803
C21.30601.15742.06552.0655
O32.46341.15743.14073.1407
H41.08032.06553.14071.8787
H51.08032.06553.14071.8787

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 119.596
C2 C1 H5 119.596 H4 C1 H5 120.808
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.495      
2 C 0.353      
3 O -0.217      
4 H 0.179      
5 H 0.179      


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 -1.514 1.514
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.032 0.000 0.000
y 0.000 -15.178 0.000
z 0.000 0.000 -18.156
Traceless
 xyz
x -2.365 0.000 0.000
y 0.000 3.416 0.000
z 0.000 0.000 -1.050
Polar
3z2-r2-2.101
x2-y2-3.854
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.372 0.000 0.000
y 0.000 2.386 0.000
z 0.000 0.000 5.938


<r2> (average value of r2) Å2
<r2> 40.154
(<r2>)1/2 6.337