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

using model chemistry: HF/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/CEP-31G*
 hartrees
Energy at 0K-24.400349
Energy at 298.15K 
HF Energy-24.400349
Nuclear repulsion energy43.658857
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 HF/CEP-31G*
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 3327 2988 40.20 112.32 0.72 0.84
2 A1 3230 2901 56.12 283.41 0.01 0.01
3 A1 1617 1452 0.13 24.38 0.74 0.85
4 A1 1511 1357 6.47 1.62 0.02 0.04
5 A1 1151 1034 17.38 12.58 0.52 0.68
6 A1 755 678 4.98 35.60 0.15 0.26
7 A1 278 250 0.02 2.43 0.64 0.78
8 A2 3316 2978 0.00 9.83 0.75 0.86
9 A2 1596 1433 0.00 35.10 0.75 0.86
10 A2 1041 935 0.00 15.46 0.75 0.86
11 A2 195 175 0.00 0.47 0.75 0.86
12 B1 3313 2975 93.21 119.84 0.75 0.86
13 B1 1605 1442 12.31 0.17 0.75 0.86
14 B1 1075 965 4.81 5.70 0.75 0.86
15 B1 201 180 1.19 0.34 0.75 0.86
16 B2 3327 2988 19.70 56.39 0.75 0.86
17 B2 3231 2901 68.36 0.87 0.75 0.86
18 B2 1610 1446 13.58 0.20 0.75 0.86
19 B2 1484 1333 17.25 1.18 0.75 0.86
20 B2 994 893 0.03 2.35 0.75 0.86
21 B2 817 734 1.38 21.50 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17837.6 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 16018.1 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 HF/CEP-31G*
ABC
0.59353 0.24768 0.18717

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.660
C2 0.000 1.392 -0.513
C3 0.000 -1.392 -0.513
H4 0.000 2.309 0.073
H5 0.000 -2.309 0.073
H6 0.891 1.374 -1.140
H7 -0.891 1.374 -1.140
H8 -0.891 -1.374 -1.140
H9 0.891 -1.374 -1.140

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7 H8 H9
S11.82061.82062.38272.38272.43342.43342.43342.4334
C21.82062.78421.08853.74751.08951.08952.97242.9724
C31.82062.78423.74751.08852.97242.97241.08951.0895
H42.38271.08853.74754.61851.77241.77243.97853.9785
H52.38273.74751.08854.61853.97853.97851.77241.7724
H62.43341.08952.97241.77243.97851.78153.27412.7471
H72.43341.08952.97241.77243.97851.78152.74713.2741
H82.43342.97241.08953.97851.77243.27412.74711.7815
H92.43342.97241.08953.97851.77242.74713.27411.7815

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 107.283 S1 C2 H6 110.972
S1 C2 H7 110.972 S1 C3 H5 107.283
S1 C3 H8 110.972 S1 C3 H9 110.972
C2 S1 C3 99.746 H4 C2 H6 108.927
H4 C2 H7 108.927 H5 C3 H8 108.927
H5 C3 H9 108.927 H6 C2 H7 109.687
H8 C3 H9 109.687
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.099      
2 C -0.380      
3 C -0.380      
4 H 0.161      
5 H 0.161      
6 H 0.135      
7 H 0.135      
8 H 0.135      
9 H 0.135      


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 -1.905 1.905
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.974 0.000 0.000
y 0.000 -23.151 0.000
z 0.000 0.000 -27.794
Traceless
 xyz
x -2.502 0.000 0.000
y 0.000 4.733 0.000
z 0.000 0.000 -2.231
Polar
3z2-r2-4.462
x2-y2-4.824
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.750 0.000 0.000
y 0.000 6.749 0.000
z 0.000 0.000 5.436


<r2> (average value of r2) Å2
<r2> 63.250
(<r2>)1/2 7.953