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

using model chemistry: CCD/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 CCD/3-21G*
 hartrees
Energy at 0K-474.805472
Energy at 298.15K 
HF Energy-474.455846
Nuclear repulsion energy109.927848
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 CCD/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 3126 2990 11.33      
2 A1 3041 2909 23.60      
3 A1 1574 1505 0.46      
4 A1 1461 1398 0.61      
5 A1 1109 1061 18.24      
6 A1 691 661 2.58      
7 A1 276 264 0.05      
8 A2 3116 2980 0.00      
9 A2 1550 1483 0.00      
10 A2 1018 974 0.00      
11 A2 192 184 0.00      
12 B1 3112 2976 31.59      
13 B1 1559 1492 18.92      
14 B1 1051 1005 8.18      
15 B1 190 181 1.04      
16 B2 3126 2990 4.98      
17 B2 3044 2911 21.47      
18 B2 1566 1498 17.59      
19 B2 1440 1377 1.29      
20 B2 978 935 0.31      
21 B2 742 710 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 16980.4 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 16241.8 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 CCD/3-21G*
ABC
0.57593 0.25027 0.18701

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.673
C2 0.000 1.383 -0.521
C3 0.000 -1.383 -0.521
H4 0.000 2.317 0.054
H5 0.000 -2.317 0.054
H6 0.897 1.353 -1.153
H7 -0.897 1.353 -1.153
H8 -0.897 -1.353 -1.153
H9 0.897 -1.353 -1.153

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7 H8 H9
S11.82711.82712.39862.39862.44292.44292.44292.4429
C21.82712.76611.09693.74481.09721.09722.94802.9480
C31.82712.76613.74481.09692.94802.94801.09721.0972
H42.39861.09693.74484.63471.78581.78583.96653.9665
H52.39863.74481.09694.63473.96653.96651.78581.7858
H62.44291.09722.94801.78583.96651.79333.24672.7065
H72.44291.09722.94801.78583.96651.79332.70653.2467
H82.44292.94801.09723.96651.78583.24672.70651.7933
H92.44292.94801.09723.96651.78582.70653.24671.7933

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 107.597 S1 C2 H6 110.832
S1 C2 H7 110.832 S1 C3 H5 107.597
S1 C3 H8 110.832 S1 C3 H9 110.832
C2 S1 C3 98.399 H4 C2 H6 108.957
H4 C2 H7 108.957 H5 C3 H8 108.957
H5 C3 H9 108.957 H6 C2 H7 109.607
H8 C3 H9 109.607
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability