return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3LYP/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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-25.053632
Energy at 298.15K 
HF Energy-25.053632
Nuclear repulsion energy43.177217
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/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 3142 3034 28.13 107.07 0.69 0.82
2 A1 3042 2938 43.08 284.14 0.01 0.01
3 A1 1487 1436 0.39 22.98 0.74 0.85
4 A1 1372 1325 2.44 0.71 0.29 0.45
5 A1 1050 1014 22.83 12.03 0.57 0.72
6 A1 681 658 3.32 25.33 0.15 0.26
7 A1 253 244 0.19 3.07 0.63 0.77
8 A2 3126 3019 0.00 10.09 0.75 0.86
9 A2 1465 1414 0.00 33.19 0.75 0.86
10 A2 945 913 0.00 16.63 0.75 0.86
11 A2 182 175 0.00 0.56 0.75 0.86
12 B1 3121 3014 70.79 113.45 0.75 0.86
13 B1 1474 1423 18.39 0.14 0.75 0.86
14 B1 983 949 13.71 6.23 0.75 0.86
15 B1 183 177 1.17 0.40 0.75 0.86
16 B2 3141 3033 11.79 55.72 0.75 0.86
17 B2 3045 2940 43.61 0.01 0.75 0.86
18 B2 1479 1429 18.62 0.06 0.75 0.86
19 B2 1344 1298 6.02 3.50 0.75 0.86
20 B2 903 872 0.55 3.18 0.75 0.86
21 B2 732 707 0.18 14.34 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16574.0 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 16005.5 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/CEP-31G*
ABC
0.57406 0.24395 0.18343

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.672
C2 0.000 1.402 -0.523
C3 0.000 -1.402 -0.523
H4 0.000 2.330 0.072
H5 0.000 -2.330 0.072
H6 0.902 1.384 -1.157
H7 -0.902 1.384 -1.157
H8 -0.902 -1.384 -1.157
H9 0.902 -1.384 -1.157

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7 H8 H9
S11.84171.84172.40562.40562.46472.46472.46472.4647
C21.84172.80351.10193.77841.10321.10322.99632.9963
C31.84172.80353.77841.10192.99632.99631.10321.1032
H42.40561.10193.77844.65911.79381.79384.01444.0144
H52.40563.77841.10194.65914.01444.01441.79381.7938
H62.46471.10322.99631.79384.01441.80493.30472.7683
H72.46471.10322.99631.79384.01441.80492.76833.3047
H82.46472.99631.10324.01441.79383.30472.76831.8049
H92.46472.99631.10324.01441.79382.76833.30471.8049

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 106.913 S1 C2 H6 111.146
S1 C2 H7 111.146 S1 C3 H5 106.913
S1 C3 H8 111.146 S1 C3 H9 111.146
C2 S1 C3 99.124 H4 C2 H6 108.880
H4 C2 H7 108.880 H5 C3 H8 108.880
H5 C3 H9 108.880 H6 C2 H7 109.782
H8 C3 H9 109.782
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.085      
2 C -0.499      
3 C -0.499      
4 H 0.195      
5 H 0.195      
6 H 0.173      
7 H 0.173      
8 H 0.173      
9 H 0.173      


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 -1.824 1.824
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.726 0.000 0.000
y 0.000 -22.848 0.000
z 0.000 0.000 -27.232
Traceless
 xyz
x -2.686 0.000 0.000
y 0.000 4.631 0.000
z 0.000 0.000 -1.945
Polar
3z2-r2-3.890
x2-y2-4.878
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.898 0.000 0.000
y 0.000 7.134 0.000
z 0.000 0.000 5.761


<r2> (average value of r2) Å2
<r2> 63.950
(<r2>)1/2 7.997