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All results from a given calculation for C2H6O2S (Dimethyl sulfone)

using model chemistry: B2PLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP/STO-3G
 hartrees
Energy at 0K-620.227904
Energy at 298.15K 
HF Energy-620.132024
Nuclear repulsion energy248.911836
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/STO-3G
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 3548 3548 0.09      
2 A1 3334 3334 9.35      
3 A1 1661 1661 0.72      
4 A1 1424 1424 0.34      
5 A1 985 985 44.89      
6 A1 814 814 42.64      
7 A1 576 576 52.53      
8 A1 290 290 6.80      
9 A1 226 226 1.58      
10 A2 3545 3545 0.00      
11 A2 1664 1664 0.00      
12 A2 891 891 0.00      
13 A2 202 202 0.00      
14 A2 47 47 0.00      
15 B1 3546 3546 0.00      
16 B1 1670 1670 6.29      
17 B1 1035 1035 57.97      
18 B1 863 863 2.29      
19 B1 280 280 3.12      
20 B1 105 105 0.06      
21 B2 3547 3547 0.06      
22 B2 3331 3331 20.17      
23 B2 1657 1657 2.59      
24 B2 1405 1405 8.07      
25 B2 893 893 15.20      
26 B2 555 555 117.83      
27 B2 273 273 5.23      

Unscaled Zero Point Vibrational Energy (zpe) 19184.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19184.1 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/STO-3G
ABC
0.12258 0.11631 0.11425

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.254
O2 -1.416 0.000 1.054
O3 1.416 0.000 1.054
C4 0.000 1.457 -1.086
C5 0.000 -1.457 -1.086
H6 0.000 2.412 -0.544
H7 0.000 -2.412 -0.544
H8 0.906 1.357 -1.699
H9 -0.906 1.357 -1.699
H10 -0.906 -1.357 -1.699
H11 0.906 -1.357 -1.699

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.62651.62651.97911.97912.54022.54022.54472.54472.54472.5447
O21.62652.83202.95072.95073.22103.22103.84873.11113.11113.8487
O31.62652.83202.95072.95073.22103.22103.11113.84873.84873.1111
C41.97912.95072.95072.91321.09823.90611.09851.09853.01913.0191
C51.97912.95072.95072.91323.90611.09823.01913.01911.09851.0985
H62.54023.22103.22101.09823.90614.82331.80741.80744.04474.0447
H72.54023.22103.22103.90611.09824.82334.04474.04471.80741.8074
H82.54473.84873.11111.09853.01911.80744.04471.81273.26422.7146
H92.54473.11113.84871.09853.01911.80744.04471.81272.71463.2642
H102.54473.11113.84873.01911.09854.04471.80743.26422.71461.8127
H112.54473.84873.11113.01911.09854.04471.80742.71463.26421.8127

picture of Dimethyl sulfone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C4 H6 107.814 S1 C4 H8 108.120
S1 C4 H9 108.120 S1 C5 H7 107.814
S1 C5 H10 108.120 S1 C5 H11 108.120
O2 S1 O3 121.053 O2 S1 C4 109.456
O2 S1 C5 109.456 O3 S1 C4 109.456
O3 S1 C5 109.456 C4 S1 C5 94.784
H6 C4 H8 110.727 H6 C4 H9 110.727
H7 C5 H10 110.727 H7 C5 H11 110.727
H8 C4 H9 111.199 H10 C5 H11 111.199
Electronic energy levels
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