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: CID/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 CID/3-21G
 hartrees
Energy at 0K-474.601087
Energy at 298.15K 
HF Energy-474.347960
Nuclear repulsion energy107.175401
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 CID/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 3225 3004 6.66      
2 A1 3130 2916 18.13      
3 A1 1588 1479 1.29      
4 A1 1454 1355 1.37      
5 A1 1095 1020 18.75      
6 A1 641 597 3.29      
7 A1 250 232 0.05      
8 A2 3219 2999 0.00      
9 A2 1570 1463 0.00      
10 A2 997 929 0.00      
11 A2 165 154 0.00      
12 B1 3216 2996 23.75      
13 B1 1580 1471 22.49      
14 B1 1026 956 7.61      
15 B1 164 153 0.90      
16 B2 3225 3005 2.84      
17 B2 3129 2915 18.06      
18 B2 1580 1472 17.29      
19 B2 1429 1331 5.54      
20 B2 971 904 0.16      
21 B2 688 641 1.69      

Unscaled Zero Point Vibrational Energy (zpe) 17169.6 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 15995.2 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 CID/3-21G
ABC
0.54091 0.23619 0.17551

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.698
C2 0.000 1.433 -0.548
C3 0.000 -1.433 -0.548
H4 0.000 2.351 0.038
H5 0.000 -2.351 0.038
H6 0.897 1.382 -1.165
H7 -0.897 1.382 -1.165
H8 -0.897 -1.382 -1.165
H9 0.897 -1.382 -1.165

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7 H8 H9
S11.89901.89902.44192.44192.48672.48672.48672.4867
C21.89902.86601.08913.82911.08941.08943.01843.0184
C31.89902.86603.82911.08913.01843.01841.08941.0894
H42.44191.08913.82914.70201.78551.78554.02354.0235
H52.44193.82911.08914.70204.02354.02351.78551.7855
H62.48671.08943.01841.78554.02351.79403.29582.7648
H72.48671.08943.01841.78554.02351.79402.76483.2958
H82.48673.01841.08944.02351.78553.29582.76481.7940
H92.48673.01841.08944.02351.78552.76483.29581.7940

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 106.435 S1 C2 H6 109.638
S1 C2 H7 109.638 S1 C3 H5 106.435
S1 C3 H8 109.638 S1 C3 H9 109.638
C2 S1 C3 97.980 H4 C2 H6 110.089
H4 C2 H7 110.089 H5 C3 H8 110.089
H5 C3 H9 110.089 H6 C2 H7 110.851
H8 C3 H9 110.851
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability