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All results from a given calculation for CH2CO (Ketene)

using model chemistry: MP2=FULL/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 MP2=FULL/TZVP
 hartrees
Energy at 0K-152.293596
Energy at 298.15K-152.294566
HF Energy-151.777887
Nuclear repulsion energy58.456969
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 MP2=FULL/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 3249 3095 30.53 108.27 0.14 0.25
2 A1 2230 2124 522.03 6.57 0.74 0.85
3 A1 1430 1362 19.10 3.50 0.30 0.46
4 A1 1166 1111 1.83 37.79 0.24 0.39
5 B1 565 539 11.82 0.25 0.75 0.86
6 B1 440 419 141.01 3.46 0.75 0.86
7 B2 3360 3201 11.13 48.97 0.75 0.86
8 B2 994 947 6.40 0.09 0.75 0.86
9 B2 437 416 2.41 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6935.0 cm-1
Scaled (by 0.9527) Zero Point Vibrational Energy (zpe) 6607.0 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 MP2=FULL/TZVP
ABC
9.48613 0.34200 0.33010

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.213
C2 0.000 0.000 0.101
O3 0.000 0.000 1.268
H4 0.000 0.939 -1.738
H5 0.000 -0.939 -1.738

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.31392.48071.07581.0758
C21.31391.16682.06482.0648
O32.48071.16683.14903.1490
H41.07582.06483.14901.8779
H51.07582.06483.14901.8779

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 119.213
C2 C1 H5 119.213 H4 C1 H5 121.575
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability