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

using model chemistry: QCISD(T)/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD(T)/6-31G*
 hartrees
Energy at 0K-627.212399
Energy at 298.15K 
HF Energy-626.387360
Nuclear repulsion energy271.361718
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(T)/6-31G*
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 3187 3057        
2 A1 3082 2956        
3 A1 1502 1440        
4 A1 1412 1354        
5 A1 1148 1101        
6 A1 1038 996        
7 A1 698 669        
8 A1 481 462        
9 A1 272 261        
10 A2 3187 3057        
11 A2 1490 1430        
12 A2 978 938        
13 A2 288 277        
14 A2 196 188        
15 B1 3191 3061        
16 B1 1505 1444        
17 B1 1337 1282        
18 B1 1033 991        
19 B1 362 347        
20 B1 226 217        
21 B2 3186 3056        
22 B2 3080 2954        
23 B2 1493 1432        
24 B2 1393 1337        
25 B2 990 950        
26 B2 777 745        
27 B2 446 428        

Unscaled Zero Point Vibrational Energy (zpe) 18987.4 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 18214.6 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(T)/6-31G*
ABC
0.14888 0.13809 0.13647

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.191
O2 -1.282 0.000 0.916
O3 1.282 0.000 0.916
C4 0.000 1.410 -0.917
C5 0.000 -1.410 -0.917
H6 0.000 2.300 -0.279
H7 0.000 -2.300 -0.279
H8 0.904 1.392 -1.534
H9 -0.904 1.392 -1.534
H10 -0.904 -1.392 -1.534
H11 0.904 -1.392 -1.534

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.47291.47291.79311.79312.34792.34792.39392.39392.39392.3939
O21.47292.56442.64402.64402.89192.89193.56642.84292.84293.5664
O31.47292.56442.64402.64402.89192.89192.84293.56643.56642.8429
C41.79312.64402.64402.81981.09553.76471.09481.09483.00833.0083
C51.79312.64402.64402.81983.76471.09553.00833.00831.09481.0948
H62.34792.89192.89191.09553.76474.60081.79371.79374.00354.0035
H72.34792.89192.89193.76471.09554.60084.00354.00351.79371.7937
H82.39393.56642.84291.09483.00831.79374.00351.80853.32022.7844
H92.39392.84293.56641.09483.00831.79374.00351.80852.78443.3202
H102.39392.84293.56643.00831.09484.00351.79373.32022.78441.8085
H112.39393.56642.84293.00831.09484.00351.79372.78443.32021.8085

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 106.217 S1 C4 H8 109.603
S1 C4 H9 109.603 S1 C5 H7 106.217
S1 C5 H10 109.603 S1 C5 H11 109.603
O2 S1 O3 121.042 O2 S1 C4 107.701
O2 S1 C5 107.701 O3 S1 C4 107.701
O3 S1 C5 107.701 C4 S1 C5 103.679
H6 C4 H8 109.957 H6 C4 H9 109.957
H7 C5 H10 109.957 H7 C5 H11 109.957
H8 C4 H9 111.369 H10 C5 H11 111.369
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability