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

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-552.270232
Energy at 298.15K-552.277137
HF Energy-551.615901
Nuclear repulsion energy182.733793
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/TZVP
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' 3222 3054 2.61 88.26 0.71 0.83
2 A' 3212 3045 8.63 92.81 0.75 0.85
3 A' 3094 2933 8.74 255.80 0.00 0.00
4 A' 1490 1413 19.86 3.77 0.74 0.85
5 A' 1470 1393 5.53 14.62 0.71 0.83
6 A' 1379 1308 8.19 2.38 0.07 0.12
7 A' 1096 1039 150.09 5.29 0.56 0.72
8 A' 1044 989 14.06 4.86 0.56 0.72
9 A' 979 928 13.23 5.38 0.74 0.85
10 A' 678 643 10.04 32.04 0.11 0.19
11 A' 374 354 9.75 1.90 0.36 0.53
12 A' 288 273 0.55 2.42 0.75 0.85
13 A' 235 223 0.71 0.10 0.53 0.69
14 A" 3221 3053 1.26 37.21 0.75 0.86
15 A" 3209 3042 0.03 7.40 0.75 0.86
16 A" 3092 2931 4.60 0.44 0.75 0.86
17 A" 1471 1395 0.31 15.97 0.75 0.86
18 A" 1453 1378 9.80 3.41 0.75 0.86
19 A" 1351 1281 1.41 0.30 0.75 0.86
20 A" 944 894 4.84 5.02 0.75 0.86
21 A" 914 866 0.96 0.23 0.75 0.86
22 A" 701 665 18.65 19.23 0.75 0.86
23 A" 318 301 10.77 4.24 0.75 0.86
24 A" 143 135 0.03 0.24 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17688.7 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 16767.1 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 MP2/TZVP
ABC
0.22861 0.22676 0.13842

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.264 0.434 0.000
O2 -1.117 1.072 0.000
C3 0.264 -0.789 1.347
C4 0.264 -0.789 -1.347
H5 1.185 -1.369 1.327
H6 1.185 -1.369 -1.327
H7 0.194 -0.231 2.277
H8 0.194 -0.231 -2.277
H9 -0.611 -1.426 1.231
H10 -0.611 -1.426 -1.231

Atom - Atom Distances (Å)
  S1 O2 C3 C4 H5 H6 H7 H8 H9 H10
S11.52131.81881.81882.42082.42082.37332.37332.39582.3958
O21.52132.68042.68043.60873.60872.93302.93302.83092.8309
C31.81882.68042.69361.08922.88691.08723.66751.08872.7961
C41.81882.68042.69362.88691.08923.66751.08722.79611.0887
H52.42083.60871.08922.88692.65361.78403.90751.79983.1263
H62.42083.60872.88691.08922.65363.90751.78403.12631.7998
H72.37332.93301.08723.66751.78403.90754.55461.78063.7929
H82.37332.93303.66751.08723.90751.78404.55463.79291.7806
H92.39582.83091.08872.79611.79983.12631.78063.79292.4624
H102.39582.83092.79611.08873.12631.79983.79291.78062.4624

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 110.161 S1 C3 H7 106.792
S1 C3 H9 108.346 S1 C4 H6 110.161
S1 C4 H8 106.792 S1 C4 H10 108.346
O2 S1 C3 106.393 O2 S1 C4 106.393
C3 S1 C4 95.547 H5 C3 H7 110.110
H5 C3 H9 111.462 H6 C4 H8 110.110
H6 C4 H10 111.462 H7 C3 H9 109.843
H8 C4 H10 109.843
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability