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

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-622.177206
Energy at 298.15K-622.179464
HF Energy-622.177206
Nuclear repulsion energy189.139345
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 HF/Def2TZVPP
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' 1257 1140 0.00 26.56 0.07 0.13
2 A2" 597 541 72.23 0.00 0.00 0.00
3 E' 1592 1443 322.74 4.33 0.75 0.86
3 E' 1592 1443 322.74 4.33 0.75 0.86
4 E' 610 553 45.52 2.67 0.75 0.86
4 E' 610 553 45.52 2.67 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3129.6 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 2836.6 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 HF/Def2TZVPP
ABC
0.36655 0.36655 0.18328

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.000
O2 0.000 1.385 0.000
O3 1.199 -0.692 0.000
O4 -1.199 -0.692 0.000

Atom - Atom Distances (Å)
  S1 O2 O3 O4
S11.38451.38451.3845
O21.38452.39802.3980
O31.38452.39802.3980
O41.38452.39802.3980

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 HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.383      
2 O -0.461      
3 O -0.461      
4 O -0.461      


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 -31.631 0.000 0.000
y 0.000 -31.631 0.000
z 0.000 0.000 -24.373
Traceless
 xyz
x -3.629 0.000 0.000
y 0.000 -3.629 0.000
z 0.000 0.000 7.258
Polar
3z2-r214.516
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 3.676 0.000 0.000
y 0.000 3.676 0.000
z 0.000 0.000 2.201


<r2> (average value of r2) Å2
<r2> 64.250
(<r2>)1/2 8.016