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All results from a given calculation for CH2CO (Ketene)

using model chemistry: QCISD(T)=FULL/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD(T)=FULL/aug-cc-pVQZ
 hartrees
Energy at 0K-152.500035
Energy at 298.15K-152.501097
HF Energy-151.795979
Nuclear repulsion energy58.597491
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 QCISD(T)=FULL/aug-cc-pVQZ
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 3205 3205        
2 A1 2201 2201        
3 A1 1419 1419        
4 A1 1160 1160        
5 B1 594 594        
6 B1 535 535        
7 B2 3313 3313        
8 B2 992 992        
9 B2 436 436        

Unscaled Zero Point Vibrational Energy (zpe) 6928.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6928.0 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 QCISD(T)=FULL/aug-cc-pVQZ
ABC
9.47525 0.34371 0.33168

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/aug-cc-pVQZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.210
C2 0.000 0.000 0.102
O3 0.000 0.000 1.264
H4 0.000 0.939 -1.734
H5 0.000 -0.939 -1.734

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.31252.47451.07551.0755
C21.31251.16202.06242.0624
O32.47451.16203.14183.1418
H41.07552.06243.14181.8790
H51.07552.06243.14181.8790

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 119.130
C2 C1 H5 119.130 H4 C1 H5 121.739
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability