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

using model chemistry: MP3/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3/Def2TZVPP
 hartrees
Energy at 0K-627.603054
Energy at 298.15K 
HF Energy-626.570556
Nuclear repulsion energy277.120460
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 MP3/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 3210 3210 0.49      
2 A1 3109 3109 1.00      
3 A1 1484 1484 2.63      
4 A1 1384 1384 33.95      
5 A1 1234 1234 170.70      
6 A1 1028 1028 3.67      
7 A1 725 725 11.36      
8 A1 516 516 29.99      
9 A1 276 276 2.35      
10 A2 3217 3217 0.00      
11 A2 1469 1469 0.00      
12 A2 947 947 0.00      
13 A2 308 308 0.00      
14 A2 189 189 0.00      
15 B1 3221 3221 1.46      
16 B1 1488 1488 0.10      
17 B1 1434 1434 283.51      
18 B1 1010 1010 1.46      
19 B1 371 371 0.63      
20 B1 226 226 0.41      
21 B2 3209 3209 0.43      
22 B2 3107 3107 0.37      
23 B2 1474 1474 4.59      
24 B2 1368 1368 19.22      
25 B2 962 962 85.28      
26 B2 777 777 33.62      
27 B2 479 479 41.86      

Unscaled Zero Point Vibrational Energy (zpe) 19110.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19110.5 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 MP3/Def2TZVPP
ABC
0.15581 0.14468 0.14049

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.190
O2 -1.239 0.000 0.902
O3 1.239 0.000 0.902
C4 0.000 1.388 -0.906
C5 0.000 -1.388 -0.906
H6 0.000 2.267 -0.268
H7 0.000 -2.267 -0.268
H8 0.898 1.369 -1.515
H9 -0.898 1.369 -1.515
H10 -0.898 -1.369 -1.515
H11 0.898 -1.369 -1.515

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.42911.42911.76871.76872.31282.31282.36322.36322.36322.3632
O21.42912.47792.59462.59462.83602.83603.50452.79832.79833.5045
O31.42912.47792.59462.59462.83602.83602.79833.50453.50452.7983
C41.76872.59462.59462.77641.08643.71061.08501.08502.96262.9626
C51.76872.59462.59462.77643.71061.08642.96262.96261.08501.0850
H62.31282.83602.83601.08643.71064.53421.78021.78023.94723.9472
H72.31282.83602.83603.71061.08644.53423.94723.94721.78021.7802
H82.36323.50452.79831.08502.96261.78023.94721.79643.27412.7373
H92.36322.79833.50451.08502.96261.78023.94721.79642.73733.2741
H102.36322.79833.50452.96261.08503.94721.78023.27412.73731.7964
H112.36323.50452.79832.96261.08503.94721.78022.73733.27411.7964

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 105.707 S1 C4 H8 109.472
S1 C4 H9 109.472 S1 C5 H7 105.707
S1 C5 H10 109.472 S1 C5 H11 109.472
O2 S1 O3 120.202 O2 S1 C4 107.992
O2 S1 C5 107.992 O3 S1 C4 107.992
O3 S1 C5 107.992 C4 S1 C5 103.418
H6 C4 H8 110.132 H6 C4 H9 110.132
H7 C5 H10 110.132 H7 C5 H11 110.132
H8 C4 H9 111.743 H10 C5 H11 111.743
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability