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

using model chemistry: CISD/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 CISD/3-21G*
 hartrees
Energy at 0K-474.769096
Energy at 298.15K 
HF Energy-474.456504
Nuclear repulsion energy110.319612
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 CISD/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 3187 2978 10.48      
2 A1 3104 2901 24.37      
3 A1 1601 1496 0.66      
4 A1 1489 1391 0.55      
5 A1 1131 1057 19.58      
6 A1 706 659 2.96      
7 A1 279 261 0.04      
8 A2 3177 2969 0.00      
9 A2 1578 1474 0.00      
10 A2 1035 967 0.00      
11 A2 195 182 0.00      
12 B1 3173 2965 30.21      
13 B1 1587 1483 20.70      
14 B1 1069 999 8.46      
15 B1 194 181 1.10      
16 B2 3187 2978 4.41      
17 B2 3104 2900 22.65      
18 B2 1593 1489 18.87      
19 B2 1467 1371 1.17      
20 B2 995 929 0.30      
21 B2 759 709 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 17304.6 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 16169.4 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 CISD/3-21G*
ABC
0.58267 0.25122 0.18811

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/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 1.381 -0.518
C3 0.000 -1.381 -0.518
H4 0.000 2.310 0.056
H5 0.000 -2.310 0.056
H6 0.892 1.353 -1.147
H7 -0.892 1.353 -1.147
H8 -0.892 -1.353 -1.147
H9 0.892 -1.353 -1.147

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7 H8 H9
S11.82061.82062.38942.38942.43362.43362.43362.4336
C21.82062.76171.09173.73481.09201.09202.94382.9438
C31.82062.76173.73481.09172.94382.94381.09201.0920
H42.38941.09173.73484.61921.77711.77713.95693.9569
H52.38943.73481.09174.61923.95693.95691.77711.7771
H62.43361.09202.94381.77713.95691.78473.24162.7060
H72.43361.09202.94381.77713.95691.78472.70603.2416
H82.43362.94381.09203.95691.77713.24162.70601.7847
H92.43362.94381.09203.95691.77712.70603.24161.7847

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 107.614 S1 C2 H6 110.852
S1 C2 H7 110.852 S1 C3 H5 107.614
S1 C3 H8 110.852 S1 C3 H9 110.852
C2 S1 C3 98.656 H4 C2 H6 108.930
H4 C2 H7 108.930 H5 C3 H8 108.930
H5 C3 H9 108.930 H6 C2 H7 109.602
H8 C3 H9 109.602
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability