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All results from a given calculation for CH3SOCH3 (Dimethyl sulfoxide)

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-552.177105
Energy at 298.15K-552.184116
HF Energy-551.553443
Nuclear repulsion energy183.155897
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 MP2/6-31+G**
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' 3255 3062 2.02 92.22 0.72 0.84
2 A' 3242 3049 7.08 94.86 0.75 0.86
3 A' 3122 2937 8.14 245.12 0.00 0.00
4 A' 1514 1424 23.83 1.75 0.67 0.80
5 A' 1494 1406 4.80 13.11 0.69 0.82
6 A' 1404 1321 9.11 5.31 0.02 0.03
7 A' 1102 1037 162.99 7.34 0.49 0.66
8 A' 1066 1003 13.61 1.70 0.74 0.85
9 A' 996 937 20.18 3.48 0.74 0.85
10 A' 696 655 7.90 32.27 0.14 0.24
11 A' 373 351 9.90 1.77 0.15 0.27
12 A' 296 279 0.65 2.59 0.75 0.86
13 A' 245 231 0.34 0.08 0.72 0.84
14 A" 3255 3061 0.62 38.41 0.75 0.86
15 A" 3239 3046 0.02 7.97 0.75 0.86
16 A" 3121 2936 4.25 0.37 0.75 0.86
17 A" 1498 1409 0.09 16.20 0.75 0.86
18 A" 1481 1393 10.77 1.88 0.75 0.86
19 A" 1381 1299 2.38 0.19 0.75 0.86
20 A" 969 911 5.52 1.50 0.75 0.86
21 A" 933 878 1.08 0.05 0.75 0.86
22 A" 727 684 18.36 20.25 0.75 0.86
23 A" 310 292 9.82 5.06 0.75 0.86
24 A" 185 174 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17951.8 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 16885.5 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 MP2/6-31+G**
ABC
0.22990 0.22823 0.13873

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.262 0.425 0.000
O2 -1.110 1.081 0.000
C3 0.262 -0.784 1.345
C4 0.262 -0.784 -1.345
H5 1.175 -1.378 1.310
H6 1.175 -1.378 -1.310
H7 0.218 -0.228 2.278
H8 0.218 -0.228 -2.278
H9 -0.622 -1.413 1.252
H10 -0.622 -1.413 -1.252

Atom - Atom Distances (Å)
  S1 O2 C3 C4 H5 H6 H7 H8 H9 H10
S11.52091.80781.80782.40792.40792.37042.37042.39282.3928
O21.52092.67722.67723.60293.60292.94422.94422.83282.8328
C31.80782.67722.68981.08962.86951.08733.66591.08942.8143
C41.80782.67722.68982.86951.08963.66591.08732.81431.0894
H52.40793.60291.08962.86952.61991.78183.88761.79793.1291
H62.40793.60292.86951.08962.61993.88761.78183.12911.7979
H72.37042.94421.08733.66591.78183.88764.55681.77923.8174
H82.37042.94423.66591.08733.88761.78184.55683.81741.7792
H92.39282.83281.08942.81431.79793.12911.77923.81742.5033
H102.39282.83282.81431.08943.12911.79793.81741.77922.5033

picture of Dimethyl sulfoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C3 H5 109.924 S1 C3 H7 107.289
S1 C3 H9 108.817 S1 C4 H6 109.924
S1 C4 H8 107.289 S1 C4 H10 108.817
O2 S1 C3 106.759 O2 S1 C4 106.759
C3 S1 C4 96.133 H5 C3 H7 109.876
H5 C3 H9 111.198 H6 C4 H8 109.876
H6 C4 H10 111.198 H7 C3 H9 109.649
H8 C4 H10 109.649
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability