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

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-164.179810
Energy at 298.15K-164.186345
HF Energy-163.821065
Nuclear repulsion energy102.148635
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/LANL2DZ
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' 3202 3083 4.23 70.12 0.72 0.84
2 A' 3196 3078 19.31 83.21 0.72 0.84
3 A' 3052 2940 19.84 225.48 0.00 0.01
4 A' 1507 1452 27.47 3.28 0.71 0.83
5 A' 1487 1432 6.15 19.11 0.74 0.85
6 A' 1422 1370 4.47 3.44 0.10 0.18
7 A' 1074 1034 21.79 15.12 0.66 0.79
8 A' 1050 1012 14.99 10.16 0.74 0.85
9 A' 803 773 57.48 6.08 0.75 0.86
10 A' 610 588 8.21 58.98 0.10 0.18
11 A' 315 303 8.29 3.96 0.49 0.65
12 A' 252 243 1.72 4.08 0.73 0.84
13 A' 193 186 0.52 0.13 0.67 0.80
14 A" 3201 3083 2.36 38.76 0.75 0.86
15 A" 3194 3076 0.13 9.52 0.75 0.86
16 A" 3053 2940 13.43 2.60 0.75 0.86
17 A" 1494 1439 1.63 22.56 0.75 0.86
18 A" 1473 1419 11.65 4.29 0.75 0.86
19 A" 1397 1345 0.67 0.39 0.75 0.86
20 A" 1007 970 0.01 15.69 0.75 0.86
21 A" 965 929 1.45 0.75 0.75 0.86
22 A" 657 633 10.16 34.45 0.75 0.86
23 A" 275 265 14.44 6.30 0.75 0.86
24 A" 121 116 0.01 0.12 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17498.7 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 16853.0 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 MP2/LANL2DZ
ABC
0.20845 0.20114 0.12769

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.307 0.461 0.000
O2 -1.291 1.001 0.000
C3 0.307 -0.785 1.427
C4 0.307 -0.785 -1.427
H5 1.258 -1.338 1.458
H6 1.258 -1.338 -1.458
H7 0.165 -0.192 2.341
H8 0.165 -0.192 -2.341
H9 -0.554 -1.451 1.271
H10 -0.554 -1.451 -1.271

Atom - Atom Distances (Å)
  S1 O2 C3 C4 H5 H6 H7 H8 H9 H10
S11.68741.89431.89432.50282.50282.43472.43472.45222.4522
O21.68742.78982.78983.75453.75453.00473.00472.85952.8595
C31.89432.78982.85451.10033.08771.09883.81761.09992.9100
C41.89432.78982.85453.08771.10033.81761.09882.91001.0999
H52.50283.75451.10033.08772.91581.81314.11601.82503.2779
H62.50283.75453.08771.10032.91584.11601.81313.27791.8250
H72.43473.00471.09883.81761.81314.11604.68271.80243.8930
H82.43473.00473.81761.09884.11601.81314.68273.89301.8024
H92.45222.85951.09992.91001.82503.27791.80243.89302.5427
H102.45222.85952.91001.09993.27791.82503.89301.80242.5427

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 110.572 S1 C3 H7 105.781
S1 C3 H9 106.952 S1 C4 H6 110.572
S1 C4 H8 105.781 S1 C4 H10 106.952
O2 S1 C3 102.166 O2 S1 C4 102.166
C3 S1 C4 97.779 H5 C3 H7 111.071
H5 C3 H9 112.080 H6 C4 H8 111.071
H6 C4 H10 112.080 H7 C3 H9 110.117
H8 C4 H10 110.117
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability