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

using model chemistry: MP2/STO-3G

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/STO-3G
 hartrees
Energy at 0K-471.615052
Energy at 298.15K 
HF Energy-471.480505
Nuclear repulsion energy110.107662
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/STO-3G
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 3539 3086 2.76 42.09 0.70 0.82
2 A1 3345 2917 3.93 69.93 0.01 0.01
3 A1 1743 1520 0.03 27.74 0.74 0.85
4 A1 1610 1403 0.97 3.21 0.68 0.81
5 A1 1171 1021 11.04 6.67 0.63 0.77
6 A1 858 748 0.24 14.42 0.17 0.29
7 A1 317 277 0.22 1.05 0.57 0.72
8 A2 3515 3065 0.00 4.40 0.75 0.86
9 A2 1726 1505 0.00 35.08 0.75 0.86
10 A2 1084 945 0.00 4.48 0.75 0.86
11 A2 181 158 0.00 0.07 0.75 0.86
12 B1 3513 3063 13.63 42.74 0.75 0.86
13 B1 1726 1505 4.56 0.50 0.75 0.86
14 B1 1112 969 0.22 4.15 0.75 0.86
15 B1 182 158 0.47 0.00 0.75 0.86
16 B2 3538 3085 0.24 20.83 0.75 0.86
17 B2 3347 2919 5.00 0.60 0.75 0.86
18 B2 1741 1518 6.09 0.11 0.75 0.86
19 B2 1585 1382 17.66 5.00 0.75 0.86
20 B2 1047 913 0.01 1.00 0.75 0.86
21 B2 912 795 0.20 8.49 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18894.7 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 16474.3 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/STO-3G
ABC
0.56534 0.25570 0.18875

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.681
C2 0.000 1.363 -0.522
C3 0.000 -1.363 -0.522
H4 0.000 2.319 0.028
H5 0.000 -2.319 0.028
H6 0.893 1.345 -1.173
H7 -0.893 1.345 -1.173
H8 -0.893 -1.345 -1.173
H9 0.893 -1.345 -1.173

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7 H8 H9
S11.81821.81822.40982.40982.45912.45912.45912.4591
C21.81822.72571.10333.72301.10561.10562.92482.9248
C31.81822.72573.72301.10332.92482.92481.10561.1056
H42.40981.10333.72304.63881.78601.78603.95823.9582
H52.40983.72301.10334.63883.95823.95821.78601.7860
H62.45911.10562.92481.78603.95821.78663.22922.6899
H72.45911.10562.92481.78603.95821.78662.68993.2292
H82.45912.92481.10563.95821.78603.22922.68991.7866
H92.45912.92481.10563.95821.78602.68993.22921.7866

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 108.665 S1 C2 H6 112.194
S1 C2 H7 112.194 S1 C3 H5 108.665
S1 C3 H8 112.194 S1 C3 H9 112.194
C2 S1 C3 97.103 H4 C2 H6 107.909
H4 C2 H7 107.909 H5 C3 H8 107.909
H5 C3 H9 107.909 H6 C2 H7 107.799
H8 C3 H9 107.799
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability