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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-475.701985
Energy at 298.15K 
HF Energy-475.701985
Nuclear repulsion energy110.820975
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 B1B95/3-21G
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 3170 3032 7.89 97.18 0.69 0.81
2 A1 3069 2936 26.28 215.78 0.00 0.00
3 A1 1555 1488 1.07 36.66 0.75 0.86
4 A1 1436 1374 0.03 6.61 0.23 0.37
5 A1 1096 1049 24.34 8.56 0.62 0.77
6 A1 706 676 3.44 14.69 0.18 0.30
7 A1 264 252 0.08 2.16 0.63 0.78
8 A2 3153 3017 0.00 12.59 0.75 0.86
9 A2 1533 1467 0.00 50.37 0.75 0.86
10 A2 995 952 0.00 7.81 0.75 0.86
11 A2 194 186 0.00 0.08 0.75 0.86
12 B1 3148 3011 26.76 109.29 0.75 0.86
13 B1 1543 1476 28.66 0.01 0.75 0.86
14 B1 1033 988 14.23 6.94 0.75 0.86
15 B1 189 181 1.30 0.02 0.75 0.86
16 B2 3171 3033 2.38 48.06 0.75 0.86
17 B2 3073 2940 21.17 0.37 0.75 0.86
18 B2 1545 1478 26.30 0.01 0.75 0.86
19 B2 1413 1352 0.00 8.69 0.75 0.86
20 B2 956 915 1.17 2.64 0.75 0.86
21 B2 754 721 0.00 8.21 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16997.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 16261.6 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 B1B95/3-21G
ABC
0.58322 0.25529 0.19045

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.668
C2 0.000 1.368 -0.517
C3 0.000 -1.368 -0.517
H4 0.000 2.299 0.052
H5 0.000 -2.299 0.052
H6 0.893 1.341 -1.147
H7 -0.893 1.341 -1.147
H8 -0.893 -1.341 -1.147
H9 0.893 -1.341 -1.147

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7 H8 H9
S11.81041.81042.38002.38002.42662.42662.42662.4266
C21.81042.73621.09143.71101.09231.09232.92082.9208
C31.81042.73623.71101.09142.92082.92081.09231.0923
H42.38001.09143.71104.59791.77541.77543.93483.9348
H52.38003.71101.09144.59793.93483.93481.77541.7754
H62.42661.09232.92081.77543.93481.78513.22162.6818
H72.42661.09232.92081.77543.93481.78512.68183.2216
H82.42662.92081.09233.93481.77543.22162.68181.7851
H92.42662.92081.09233.93481.77542.68183.22161.7851

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 107.612 S1 C2 H6 111.002
S1 C2 H7 111.002 S1 C3 H5 107.612
S1 C3 H8 111.002 S1 C3 H9 111.002
C2 S1 C3 98.169 H4 C2 H6 108.779
H4 C2 H7 108.779 H5 C3 H8 108.779
H5 C3 H9 108.779 H6 C2 H7 109.593
H8 C3 H9 109.593
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.171      
2 C -0.788      
3 C -0.788      
4 H 0.242      
5 H 0.242      
6 H 0.230      
7 H 0.230      
8 H 0.230      
9 H 0.230      


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 -1.703 1.703
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.511 0.000 0.000
y 0.000 -23.740 0.000
z 0.000 0.000 -28.142
Traceless
 xyz
x -2.570 0.000 0.000
y 0.000 4.587 0.000
z 0.000 0.000 -2.016
Polar
3z2-r2-4.033
x2-y2-4.771
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.083 0.000 0.000
y 0.000 6.420 0.000
z 0.000 0.000 5.215


<r2> (average value of r2) Å2
<r2> 75.768
(<r2>)1/2 8.704