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All results from a given calculation for SO2 (Sulfur dioxide)

using model chemistry: mPW1PW91/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 mPW1PW91/aug-cc-pVTZ
 hartrees
Energy at 0K-548.668626
Energy at 298.15K-548.669556
HF Energy-548.668626
Nuclear repulsion energy107.590907
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 mPW1PW91/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 1197 1147 30.09 33.63 0.14 0.25
2 A1 526 504 29.63 2.07 0.60 0.75
3 B2 1384 1326 221.32 8.96 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1553.3 cm-1
Scaled (by 0.9581) Zero Point Vibrational Energy (zpe) 1488.2 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 mPW1PW91/aug-cc-pVTZ
ABC
1.91976 0.34401 0.29173

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.371
O2 0.000 1.238 -0.371
O3 0.000 -1.238 -0.371

Atom - Atom Distances (Å)
  S1 O2 O3
S11.44261.4426
O21.44262.4753
O31.44262.4753

picture of Sulfur dioxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 S1 O3 118.179
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.113      
2 O -0.557      
3 O -0.557      


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 1.753 1.753
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.858 0.000 0.000
y 0.000 -26.875 0.000
z 0.000 0.000 -22.766
Traceless
 xyz
x 3.963 0.000 0.000
y 0.000 -5.063 0.000
z 0.000 0.000 1.100
Polar
3z2-r22.201
x2-y26.017
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.848 0.000 0.000
y 0.000 5.009 0.000
z 0.000 0.000 3.383


<r2> (average value of r2) Å2
<r2> 43.580
(<r2>)1/2 6.602