return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP2=FULL/6-31G

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=FULL/6-31G
 hartrees
Energy at 0K-551.772057
Energy at 298.15K-551.778544
HF Energy-551.389347
Nuclear repulsion energy173.595481
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=FULL/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 A' 3226 3065 2.05 93.93 0.71 0.83
2 A' 3216 3055 7.26 91.07 0.74 0.85
3 A' 3093 2939 8.83 183.29 0.00 0.01
4 A' 1541 1464 27.75 4.15 0.72 0.84
5 A' 1523 1447 5.49 26.37 0.73 0.84
6 A' 1422 1351 3.22 0.33 0.42 0.60
7 A' 1072 1018 21.26 10.67 0.67 0.80
8 A' 1038 986 14.68 7.99 0.75 0.86
9 A' 835 793 68.10 4.91 0.68 0.81
10 A' 612 581 7.49 45.49 0.10 0.18
11 A' 303 288 7.13 2.45 0.38 0.55
12 A' 244 232 2.77 3.12 0.71 0.83
13 A' 185 176 1.12 0.07 0.33 0.50
14 A" 3225 3064 0.87 36.88 0.75 0.86
15 A" 3214 3053 0.02 6.35 0.75 0.86
16 A" 3093 2939 4.81 1.01 0.75 0.86
17 A" 1526 1450 2.63 34.05 0.75 0.86
18 A" 1511 1435 10.88 5.16 0.75 0.86
19 A" 1398 1329 0.05 0.45 0.75 0.86
20 A" 994 944 0.49 9.81 0.75 0.86
21 A" 957 909 0.84 1.68 0.75 0.86
22 A" 656 624 11.39 25.94 0.75 0.86
23 A" 226 215 9.38 6.37 0.75 0.86
24 A" 140 133 0.11 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17624.8 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 16745.3 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=FULL/6-31G
ABC
0.20714 0.20281 0.12481

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.293 0.439 0.000
O2 -1.240 1.119 0.000
C3 0.293 -0.816 1.419
C4 0.293 -0.816 -1.419
H5 1.201 -1.424 1.356
H6 1.201 -1.424 -1.356
H7 0.271 -0.238 2.346
H8 0.271 -0.238 -2.346
H9 -0.613 -1.424 1.331
H10 -0.613 -1.424 -1.331

Atom - Atom Distances (Å)
  S1 O2 C3 C4 H5 H6 H7 H8 H9 H10
S11.67661.89391.89392.47612.47612.44162.44162.46202.4620
O21.67662.84682.84683.77593.77593.10253.10252.93722.9372
C31.89392.84682.83721.09432.98161.09293.80861.09472.9579
C41.89392.84682.83722.98161.09433.80861.09292.95791.0947
H52.47613.77591.09432.98162.71131.80313.99641.81433.2416
H62.47613.77592.98161.09432.71133.99641.80313.24161.8143
H72.44163.10251.09293.80861.80313.99644.69161.79403.9629
H82.44163.10253.80861.09293.99641.80314.69163.96291.7940
H92.46202.93721.09472.95791.81433.24161.79403.96292.6614
H102.46202.93722.95791.09473.24161.81433.96291.79402.6614

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 108.957 S1 C3 H7 106.562
S1 C3 H9 107.922 S1 C4 H6 108.957
S1 C4 H8 106.562 S1 C4 H10 107.922
O2 S1 C3 105.585 O2 S1 C4 105.585
C3 S1 C4 97.010 H5 C3 H7 111.049
H5 C3 H9 111.957 H6 C4 H8 111.049
H6 C4 H10 111.957 H7 C3 H9 110.188
H8 C4 H10 110.188
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability