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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G4
 hartrees
Energy at 0K-477.805773
Energy at 298.15K-477.799892
HF Energy-478.027238
Nuclear repulsion energy110.280216
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 B3LYP/6-31G(2df,p)
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 3139 3029 11.06 95.04 0.67 0.80
2 A1 3036 2930 28.04 227.47 0.00 0.00
3 A1 1487 1435 0.00 23.10 0.75 0.86
4 A1 1364 1317 2.46 2.92 0.25 0.40
5 A1 1050 1014 13.75 5.07 0.55 0.71
6 A1 687 663 3.01 15.83 0.12 0.22
7 A1 260 251 0.14 2.22 0.60 0.75
8 A2 3120 3011 0.00 15.02 0.75 0.86
9 A2 1462 1411 0.00 30.57 0.75 0.86
10 A2 949 916 0.00 3.90 0.75 0.86
11 A2 185 178 0.00 0.09 0.75 0.86
12 B1 3113 3005 27.65 110.86 0.75 0.86
13 B1 1472 1421 11.15 0.03 0.75 0.86
14 B1 986 951 5.61 3.88 0.75 0.86
15 B1 181 175 1.01 0.01 0.75 0.86
16 B2 3139 3029 3.03 50.39 0.75 0.86
17 B2 3039 2933 25.72 1.04 0.75 0.86
18 B2 1479 1427 15.69 0.14 0.75 0.86
19 B2 1339 1292 10.49 4.10 0.75 0.86
20 B2 909 877 0.50 2.13 0.75 0.86
21 B2 739 713 0.10 7.36 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16567.4 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 15987.5 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 B3LYP/6-31G(2df,p)
ABC
0.59268 0.24821 0.18749

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.660
C2 0.000 1.390 -0.513
C3 0.000 -1.390 -0.513
H4 0.000 2.307 0.079
H5 0.000 -2.307 0.079
H6 0.894 1.374 -1.142
H7 -0.894 1.374 -1.142
H8 -0.894 -1.374 -1.142
H9 0.894 -1.374 -1.142

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7 H8 H9
S11.81881.81882.37932.37932.43652.43652.43652.4365
C21.81882.77931.09193.74401.09321.09322.97242.9724
C31.81882.77933.74401.09192.97242.97241.09321.0932
H42.37931.09193.74404.61441.77761.77763.98053.9805
H52.37933.74401.09194.61443.98053.98051.77761.7776
H62.43651.09322.97241.77763.98051.78843.27952.7490
H72.43651.09322.97241.77763.98051.78842.74903.2795
H82.43652.97241.09323.98051.77763.27952.74901.7884
H92.43652.97241.09323.98051.77762.74903.27951.7884

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 106.982 S1 C2 H6 111.234
S1 C2 H7 111.234 S1 C3 H5 106.982
S1 C3 H8 111.234 S1 C3 H9 111.234
C2 S1 C3 99.664 H4 C2 H6 108.796
H4 C2 H7 108.796 H5 C3 H8 108.796
H5 C3 H9 108.796 H6 C2 H7 109.704
H8 C3 H9 109.704
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.118      
2 C -0.366      
3 C -0.366      
4 H 0.149      
5 H 0.149      
6 H 0.138      
7 H 0.138      
8 H 0.138      
9 H 0.138      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.676 1.676
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 76.588
(<r2>)1/2 8.751