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

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-474.592381
Energy at 298.15K 
HF Energy-474.347681
Nuclear repulsion energy106.960210
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 MP2/3-21G
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 3215 3069 6.40 84.05 0.72 0.84
2 A1 3112 2970 17.47 171.82 0.00 0.01
3 A1 1583 1511 0.82 33.93 0.73 0.85
4 A1 1443 1377 1.60 1.84 0.27 0.43
5 A1 1082 1033 18.76 12.15 0.69 0.82
6 A1 630 601 2.84 24.56 0.17 0.29
7 A1 245 234 0.05 2.99 0.68 0.81
8 A2 3210 3064 0.00 7.63 0.75 0.86
9 A2 1564 1493 0.00 47.37 0.75 0.86
10 A2 988 943 0.00 11.00 0.75 0.86
11 A2 169 162 0.00 0.08 0.75 0.86
12 B1 3206 3060 22.36 89.24 0.75 0.86
13 B1 1574 1502 21.32 0.02 0.75 0.86
14 B1 1018 971 8.39 9.36 0.75 0.86
15 B1 165 158 0.84 0.05 0.75 0.86
16 B2 3216 3069 2.21 40.53 0.75 0.86
17 B2 3115 2973 15.32 1.12 0.75 0.86
18 B2 1575 1504 17.38 0.03 0.75 0.86
19 B2 1417 1353 5.96 2.30 0.75 0.86
20 B2 962 918 0.23 2.04 0.75 0.86
21 B2 677 646 1.22 14.44 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17082.5 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 16305.3 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 MP2/3-21G
ABC
0.53476 0.23628 0.17494

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.702
C2 0.000 1.433 -0.552
C3 0.000 -1.433 -0.552
H4 0.000 2.353 0.033
H5 0.000 -2.353 0.033
H6 0.898 1.380 -1.169
H7 -0.898 1.380 -1.169
H8 -0.898 -1.380 -1.169
H9 0.898 -1.380 -1.169

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7 H8 H9
S11.90451.90452.44612.44612.49242.49242.49242.4924
C21.90452.86541.09063.83051.09071.09073.01613.0161
C31.90452.86543.83051.09063.01613.01611.09071.0907
H42.44611.09063.83054.70561.78841.78844.02294.0229
H52.44613.83051.09064.70564.02294.02291.78841.7884
H62.49241.09073.01611.78844.02291.79653.29282.7595
H72.49241.09073.01611.78844.02291.79652.75953.2928
H82.49243.01611.09074.02291.78843.29282.75951.7965
H92.49243.01611.09074.02291.78842.75953.29281.7965

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 106.317 S1 C2 H6 109.624
S1 C2 H7 109.624 S1 C3 H5 106.317
S1 C3 H8 109.624 S1 C3 H9 109.624
C2 S1 C3 97.576 H4 C2 H6 110.144
H4 C2 H7 110.144 H5 C3 H8 110.144
H5 C3 H9 110.144 H6 C2 H7 110.882
H8 C3 H9 110.882
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability