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

using model chemistry: TPSSh/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at TPSSh/cc-pVDZ
 hartrees
Energy at 0K-623.791353
Energy at 298.15K-623.793263
HF Energy-623.791353
Nuclear repulsion energy177.974577
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 TPSSh/cc-pVDZ
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' 992 964 0.00 26.83 0.10 0.18
2 A2" 450 438 28.11 0.00 0.75 0.86
3 E' 1310 1274 166.20 5.62 0.75 0.86
3 E' 1310 1274 166.20 5.62 0.75 0.86
4 E' 473 460 25.20 4.69 0.75 0.86
4 E' 473 460 25.21 4.69 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 2504.1 cm-1
Scaled (by 0.9724) Zero Point Vibrational Energy (zpe) 2435.0 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 TPSSh/cc-pVDZ
ABC
0.32455 0.32455 0.16228

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/cc-pVDZ

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.000
O2 0.000 1.471 0.000
O3 1.274 -0.736 0.000
O4 -1.274 -0.736 0.000

Atom - Atom Distances (Å)
  S1 O2 O3 O4
S11.47141.47141.4714
O21.47142.54852.5485
O31.47142.54852.5485
O41.47142.54852.5485

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 TPSSh/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.011      
2 O -0.337      
3 O -0.337      
4 O -0.337      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.043 0.000 0.000
y 0.000 4.043 0.000
z 0.000 0.000 1.870


<r2> (average value of r2) Å2
<r2> 69.966
(<r2>)1/2 8.365