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

using model chemistry: LSDA/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 LSDA/3-21G
 hartrees
Energy at 0K-474.129141
Energy at 298.15K 
HF Energy-474.129141
Nuclear repulsion energy108.373382
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 LSDA/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 3119 3068 2.66      
2 A1 2999 2950 17.78      
3 A1 1482 1458 1.78      
4 A1 1356 1333 0.14      
5 A1 1041 1024 25.85      
6 A1 658 648 3.66      
7 A1 239 235 0.11      
8 A2 3102 3051 0.00      
9 A2 1463 1439 0.00      
10 A2 938 923 0.00      
11 A2 173 170 0.00      
12 B1 3094 3043 15.65      
13 B1 1474 1450 40.03      
14 B1 977 961 17.71      
15 B1 166 164 1.10      
16 B2 3120 3069 0.11      
17 B2 3004 2955 9.86      
18 B2 1470 1446 33.05      
19 B2 1328 1306 0.25      
20 B2 914 899 1.54      
21 B2 698 687 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 16407.9 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 16138.8 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 LSDA/3-21G
ABC
0.54090 0.24750 0.18193

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.697
C2 0.000 1.394 -0.545
C3 0.000 -1.394 -0.545
H4 0.000 2.333 0.029
H5 0.000 -2.333 0.029
H6 0.906 1.339 -1.170
H7 -0.906 1.339 -1.170
H8 -0.906 -1.339 -1.170
H9 0.906 -1.339 -1.170

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7 H8 H9
S11.86701.86702.42662.42662.46942.46942.46942.4694
C21.86702.78721.10033.77011.10161.10162.94542.9454
C31.86702.78723.77011.10032.94542.94541.10161.1016
H42.42661.10033.77014.66531.80121.80123.96663.9666
H52.42663.77011.10034.66533.96663.96661.80121.8012
H62.46941.10162.94541.80123.96661.81153.23252.6771
H72.46941.10162.94541.80123.96661.81152.67713.2325
H82.46942.94541.10163.96661.80123.23252.67711.8115
H92.46942.94541.10163.96661.80122.67713.23251.8115

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 106.868 S1 C2 H6 109.877
S1 C2 H7 109.877 S1 C3 H5 106.868
S1 C3 H8 109.877 S1 C3 H9 109.877
C2 S1 C3 96.569 H4 C2 H6 109.767
H4 C2 H7 109.767 H5 C3 H8 109.767
H5 C3 H9 109.767 H6 C2 H7 110.610
H8 C3 H9 110.610
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.260      
2 C -0.881      
3 C -0.881      
4 H 0.259      
5 H 0.259      
6 H 0.246      
7 H 0.246      
8 H 0.246      
9 H 0.246      


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 -1.935 1.935
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.692 0.000 0.000
y 0.000 -23.868 0.000
z 0.000 0.000 -28.649
Traceless
 xyz
x -2.433 0.000 0.000
y 0.000 4.803 0.000
z 0.000 0.000 -2.369
Polar
3z2-r2-4.738
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 3.929 0.000 0.000
y 0.000 6.683 0.000
z 0.000 0.000 5.396


<r2> (average value of r2) Å2
<r2> 78.364
(<r2>)1/2 8.852