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All results from a given calculation for CH2CO (Ketene)

using model chemistry: HSEh1PBE/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HSEh1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-152.498730
Energy at 298.15K-152.499816
HF Energy-152.498730
Nuclear repulsion energy58.795983
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 HSEh1PBE/aug-cc-pVTZ
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 3200 3078 33.18 113.62 0.09 0.16
2 A1 2248 2162 684.83 14.75 0.47 0.64
3 A1 1407 1353 17.54 4.39 0.13 0.22
4 A1 1179 1134 5.83 39.47 0.16 0.28
5 B1 593 571 47.29 0.49 0.75 0.86
6 B1 557 536 73.30 4.47 0.75 0.86
7 B2 3298 3172 11.15 48.90 0.75 0.86
8 B2 982 945 4.48 0.05 0.75 0.86
9 B2 444 427 2.12 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6954.5 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 6688.8 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 HSEh1PBE/aug-cc-pVTZ
ABC
9.47277 0.34640 0.33418

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.204
C2 0.000 0.000 0.103
O3 0.000 0.000 1.259
H4 0.000 0.940 -1.734
H5 0.000 -0.940 -1.734

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.30642.46321.07881.0788
C21.30641.15692.06282.0628
O32.46321.15693.13733.1373
H41.07882.06283.13731.8792
H51.07882.06283.13731.8792

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 119.428
C2 C1 H5 119.428 H4 C1 H5 121.145
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.576      
2 C 0.269      
3 O -0.313      
4 H 0.310      
5 H 0.310      


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 -1.490 1.490
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.015 0.000 0.000
y 0.000 -15.350 0.000
z 0.000 0.000 -17.977
Traceless
 xyz
x -2.351 0.000 0.000
y 0.000 3.146 0.000
z 0.000 0.000 -0.795
Polar
3z2-r2-1.590
x2-y2-3.665
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.318 0.000 0.000
y 0.000 3.196 0.000
z 0.000 0.000 6.157


<r2> (average value of r2) Å2
<r2> 40.123
(<r2>)1/2 6.334