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All results from a given calculation for SO3 (Sulfur trioxide)

using model chemistry: B97D3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-623.822592
Energy at 298.15K-623.824582
HF Energy-623.822592
Nuclear repulsion energy182.276744
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 B97D3/6-311+G(3df,2p)
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' 1025 1012 0.00 40.97 0.06 0.11
2 A2" 475 469 25.05 0.00 0.75 0.86
3 E' 1346 1329 172.31 7.16 0.75 0.86
3 E' 1346 1329 172.29 7.16 0.75 0.86
4 E' 504 498 21.16 2.81 0.75 0.86
4 E' 504 498 21.16 2.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 2600.5 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 2566.7 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 B97D3/6-311+G(3df,2p)
ABC
0.34044 0.34044 0.17022

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.000
O2 0.000 1.437 0.000
O3 1.244 -0.718 0.000
O4 -1.244 -0.718 0.000

Atom - Atom Distances (Å)
  S1 O2 O3 O4
S11.43661.43661.4366
O21.43662.48832.4883
O31.43662.48832.4883
O41.43662.48832.4883

picture of Sulfur trioxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 S1 O3 120.000 O2 S1 O4 120.000
O3 S1 O4 120.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.778      
2 O -0.259      
3 O -0.259      
4 O -0.259      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.861 0.000 0.000
y 0.000 -30.861 0.000
z 0.000 0.000 -25.207
Traceless
 xyz
x -2.827 0.000 0.000
y 0.000 -2.827 0.000
z 0.000 0.000 5.654
Polar
3z2-r211.308
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.962 0.000 0.000
y 0.000 4.962 0.000
z 0.000 0.000 2.990


<r2> (average value of r2) Å2
<r2> 67.632
(<r2>)1/2 8.224