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All results from a given calculation for H2SO3 (Sulfurous acid)

using model chemistry: B2PLYP=FULL/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes CS 1A'

Conformer 1 (CS)

Jump to S1C2
Vibrational Frequencies calculated at B2PLYP=FULL/6-311G**
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULL/6-311G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at B2PLYP=FULL/6-311G**
 hartrees
Energy at 0K-624.819614
Energy at 298.15K-624.823358
HF Energy-624.517743
Nuclear repulsion energy191.536269
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 B2PLYP=FULL/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3739 3739 102.65      
2 A' 1230 1230 151.68      
3 A' 1101 1101 16.05      
4 A' 739 739 167.79      
5 A' 472 472 26.87      
6 A' 434 434 148.50      
7 A' 314 314 22.82      
8 A" 3736 3736 34.15      
9 A" 1069 1069 59.46      
10 A" 731 731 360.19      
11 A" 432 432 61.85      
12 A" 169 169 25.87      

Unscaled Zero Point Vibrational Energy (zpe) 7083.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7083.0 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 B2PLYP=FULL/6-311G**
ABC
0.27918 0.25255 0.15929

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.297 0.346 0.000
O2 -1.033 0.970 0.000
O3 0.297 -0.713 1.272
O4 0.297 -0.713 -1.272
H5 -0.624 -0.942 1.472
H6 -0.624 -0.942 -1.472

Atom - Atom Distances (Å)
  S1 O2 O3 O4 H5 H6
S11.46941.65511.65512.16212.1621
O21.46942.49382.49382.44682.4468
O31.65512.49382.54340.97062.9030
O41.65512.49382.54342.90300.9706
H52.16212.44680.97062.90302.9431
H62.16212.44682.90300.97062.9431

picture of Sulfurous acid state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 O3 H5 108.008 S1 O4 H6 108.008
O2 S1 O3 105.755 O2 S1 O4 105.755
O3 S1 O4 100.410
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability