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All results from a given calculation for CH3SCH3 (Dimethyl sulfide)

using model chemistry: MP2=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-474.781039
Energy at 298.15K 
HF Energy-474.456302
Nuclear repulsion energy110.238137
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/3-21G*
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 3176 3011 9.57 86.62 0.71 0.83
2 A1 3083 2923 23.19 183.38 0.00 0.00
3 A1 1593 1510 0.27 36.43 0.75 0.86
4 A1 1475 1399 0.93 6.49 0.24 0.38
5 A1 1120 1062 18.84 9.50 0.65 0.79
6 A1 698 662 3.37 15.77 0.17 0.28
7 A1 275 261 0.07 1.95 0.64 0.78
8 A2 3166 3002 0.00 9.50 0.75 0.86
9 A2 1568 1486 0.00 49.72 0.75 0.86
10 A2 1030 976 0.00 8.10 0.75 0.86
11 A2 199 188 0.00 0.07 0.75 0.86
12 B1 3161 2996 27.84 97.13 0.75 0.86
13 B1 1577 1495 19.89 0.00 0.75 0.86
14 B1 1063 1008 9.13 7.15 0.75 0.86
15 B1 194 184 1.13 0.01 0.75 0.86
16 B2 3177 3012 3.04 42.63 0.75 0.86
17 B2 3087 2927 18.99 0.10 0.75 0.86
18 B2 1585 1503 19.45 0.00 0.75 0.86
19 B2 1453 1377 1.89 7.78 0.75 0.86
20 B2 988 937 0.41 2.20 0.75 0.86
21 B2 750 711 0.26 9.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17209.7 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 16314.8 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/3-21G*
ABC
0.57872 0.25178 0.18806

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.671
C2 0.000 1.379 -0.520
C3 0.000 -1.379 -0.520
H4 0.000 2.310 0.054
H5 0.000 -2.310 0.054
H6 0.894 1.349 -1.150
H7 -0.894 1.349 -1.150
H8 -0.894 -1.349 -1.150
H9 0.894 -1.349 -1.150

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7 H8 H9
S11.82231.82232.39092.39092.43592.43592.43592.4359
C21.82232.75811.09353.73321.09381.09382.93892.9389
C31.82232.75813.73321.09352.93892.93891.09381.0938
H42.39091.09353.73324.61971.78061.78063.95393.9539
H52.39093.73321.09354.61973.95393.95391.78061.7806
H62.43591.09382.93891.78063.95391.78813.23662.6978
H72.43591.09382.93891.78063.95391.78812.69783.2366
H82.43592.93891.09383.95391.78063.23662.69781.7881
H92.43592.93891.09383.95391.78062.69783.23661.7881

picture of Dimethyl sulfide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 H4 107.525 S1 C2 H6 110.812
S1 C2 H7 110.812 S1 C3 H5 107.525
S1 C3 H8 110.812 S1 C3 H9 110.812
C2 S1 C3 98.357 H4 C2 H6 108.992
H4 C2 H7 108.992 H5 C3 H8 108.992
H5 C3 H9 108.992 H6 C2 H7 109.650
H8 C3 H9 109.650
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability