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

using model chemistry: QCISD/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 QCISD/Def2TZVPP
 hartrees
Energy at 0K-623.050054
Energy at 298.15K-623.052152
HF Energy-622.171685
Nuclear repulsion energy184.582648
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/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' 1113 1113 0.00      
2 A2" 520 520 39.04      
3 E' 1445 1445 201.22      
3 E' 1445 1445 201.20      
4 E' 542 542 31.43      
4 E' 542 542 31.42      

Unscaled Zero Point Vibrational Energy (zpe) 2803.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 2803.4 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/Def2TZVPP
ABC
0.34910 0.34910 0.17455

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.000
O2 0.000 1.419 0.000
O3 1.229 -0.709 0.000
O4 -1.229 -0.709 0.000

Atom - Atom Distances (Å)
  S1 O2 O3 O4
S11.41871.41871.4187
O21.41872.45722.4572
O31.41872.45722.4572
O41.41872.45722.4572

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