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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-474.764734
Energy at 298.15K 
HF Energy-474.456285
Nuclear repulsion energy110.220811
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 3175 3021 9.62 86.76 0.71 0.83
2 A1 3083 2933 23.28 183.48 0.00 0.00
3 A1 1593 1516 0.26 36.47 0.75 0.86
4 A1 1476 1404 0.95 6.51 0.24 0.39
5 A1 1121 1066 18.78 9.48 0.65 0.79
6 A1 699 665 3.40 15.78 0.17 0.28
7 A1 275 262 0.07 1.95 0.64 0.78
8 A2 3165 3011 0.00 9.52 0.75 0.86
9 A2 1568 1492 0.00 49.77 0.75 0.86
10 A2 1031 980 0.00 8.10 0.75 0.86
11 A2 198 189 0.00 0.07 0.75 0.86
12 B1 3160 3006 28.06 97.22 0.75 0.86
13 B1 1578 1501 19.85 0.00 0.75 0.86
14 B1 1064 1013 9.06 7.13 0.75 0.86
15 B1 194 184 1.13 0.01 0.75 0.86
16 B2 3176 3021 3.09 42.72 0.75 0.86
17 B2 3087 2936 19.08 0.09 0.75 0.86
18 B2 1585 1508 19.43 0.00 0.75 0.86
19 B2 1453 1382 1.93 7.81 0.75 0.86
20 B2 989 941 0.41 2.20 0.75 0.86
21 B2 751 714 0.28 9.12 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17209.9 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 16371.8 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 MP2/3-21G*
ABC
0.57874 0.25164 0.18799

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 0.671
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
S11.82251.82252.39142.39142.43632.43632.43632.4363
C21.82252.75881.09363.73411.09401.09402.93992.9399
C31.82252.75883.73411.09362.93992.93991.09401.0940
H42.39141.09363.73414.62071.78081.78083.95503.9550
H52.39143.73411.09364.62073.95503.95501.78081.7808
H62.43631.09402.93991.78083.95501.78823.23762.6990
H72.43631.09402.93991.78083.95501.78822.69903.2376
H82.43632.93991.09403.95501.78083.23762.69901.7882
H92.43632.93991.09403.95501.78082.69903.23761.7882

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 107.536 S1 C2 H6 110.821
S1 C2 H7 110.821 S1 C3 H5 107.536
S1 C3 H8 110.821 S1 C3 H9 110.821
C2 S1 C3 98.377 H4 C2 H6 108.983
H4 C2 H7 108.983 H5 C3 H8 108.983
H5 C3 H9 108.983 H6 C2 H7 109.637
H8 C3 H9 109.637
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability