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

using model chemistry: PM3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K-0.017513
HF Energy-0.017513
Nuclear repulsion energy55.312163
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 PM3
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 3200 3117 0.01 191.43 0.00 0.01
2 A1 3107 3027 11.16 99.91 0.75 0.85
3 A1 1395 1359 0.63 64.54 0.75 0.86
4 A1 1330 1296 4.19 6.28 0.46 0.63
5 A1 985 959 7.37 18.62 0.63 0.78
6 A1 723 704 12.43 15.98 0.21 0.34
7 A1 259 252 0.25 3.38 0.63 0.78
8 A2 3105 3025 0.00 11.86 0.75 0.86
9 A2 1382 1346 0.00 77.98 0.75 0.86
10 A2 918 894 0.00 19.26 0.75 0.86
11 A2 112 109 0.00 0.13 0.75 0.86
12 B1 3103 3023 5.42 128.90 0.75 0.86
13 B1 1381 1345 14.21 0.20 0.75 0.86
14 B1 921 897 0.04 5.53 0.75 0.86
15 B1 85 83 2.72 0.05 0.75 0.86
16 B2 3201 3118 9.89 2.85 0.75 0.86
17 B2 3107 3026 15.79 59.89 0.75 0.86
18 B2 1395 1359 7.82 0.88 0.75 0.86
19 B2 1328 1293 3.82 3.02 0.75 0.86
20 B2 883 860 2.37 1.51 0.75 0.86
21 B2 771 751 1.38 23.29 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16345.4 cm-1
Scaled (by 0.974) Zero Point Vibrational Energy (zpe) 15920.4 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 PM3
ABC
0.62844 0.24200 0.18691

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.637
C2 0.000 1.405 -0.490
C3 0.000 -1.405 -0.490
H4 0.000 2.319 0.117
H5 0.000 -2.319 0.117
H6 0.884 1.433 -1.137
H7 -0.884 1.433 -1.137
H8 -0.884 -1.433 -1.137
H9 0.884 -1.433 -1.137

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7 H8 H9
S11.80121.80122.37602.37602.44592.44592.44592.4459
C21.80122.81061.09673.77301.09571.09573.04263.0426
C31.80122.81063.77301.09673.04263.04261.09571.0957
H42.37601.09673.77304.63711.77151.77154.05354.0535
H52.37603.77301.09674.63714.05354.05351.77151.7715
H62.44591.09573.04261.77154.05351.76723.36752.8666
H72.44591.09573.04261.77154.05351.76722.86663.3675
H82.44593.04261.09574.05351.77153.36752.86661.7672
H92.44593.04261.09574.05351.77152.86663.36751.7672

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 107.658 S1 C2 H6 112.924
S1 C2 H7 112.924 S1 C3 H5 107.658
S1 C3 H8 112.924 S1 C3 H9 112.924
C2 S1 C3 102.555 H4 C2 H6 107.808
H4 C2 H7 107.808 H5 C3 H8 107.808
H5 C3 H9 107.808 H6 C2 H7 107.496
H8 C3 H9 107.496
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability