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

using model chemistry: QCISD/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 QCISD/3-21G*
 hartrees
Energy at 0K-474.807969
Energy at 298.15K 
HF Energy-474.455705
Nuclear repulsion energy109.831188
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 QCISD/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 3112 2991 11.69      
2 A1 3028 2910 24.26      
3 A1 1570 1509 0.38      
4 A1 1456 1399 0.69      
5 A1 1105 1062 18.08      
6 A1 684 657 2.46      
7 A1 275 264 0.04      
8 A2 3101 2980 0.00      
9 A2 1546 1486 0.00      
10 A2 1014 975 0.00      
11 A2 193 185 0.00      
12 B1 3097 2977 32.62      
13 B1 1555 1495 18.55      
14 B1 1046 1006 8.08      
15 B1 190 182 1.02      
16 B2 3112 2991 5.35      
17 B2 3030 2913 22.65      
18 B2 1562 1501 17.53      
19 B2 1434 1378 1.68      
20 B2 974 936 0.27      
21 B2 735 706 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 16909.0 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 16251.2 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 QCISD/3-21G*
ABC
0.57403 0.25005 0.18670

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.674
C2 0.000 1.384 -0.522
C3 0.000 -1.384 -0.522
H4 0.000 2.319 0.052
H5 0.000 -2.319 0.052
H6 0.897 1.353 -1.154
H7 -0.897 1.353 -1.154
H8 -0.897 -1.353 -1.154
H9 0.897 -1.353 -1.154

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7 H8 H9
S11.82901.82902.40092.40092.44512.44512.44512.4451
C21.82902.76741.09763.74701.09791.09792.94862.9486
C31.82902.76743.74701.09762.94862.94861.09791.0979
H42.40091.09763.74704.63801.78711.78713.96803.9680
H52.40093.74701.09764.63803.96803.96801.78711.7871
H62.44511.09792.94861.78713.96801.79443.24702.7061
H72.44511.09792.94861.78713.96801.79442.70613.2470
H82.44512.94861.09793.96801.78713.24702.70611.7944
H92.44512.94861.09793.96801.78712.70613.24701.7944

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 107.601 S1 C2 H6 110.819
S1 C2 H7 110.819 S1 C3 H5 107.601
S1 C3 H8 110.819 S1 C3 H9 110.819
C2 S1 C3 98.316 H4 C2 H6 108.971
H4 C2 H7 108.971 H5 C3 H8 108.971
H5 C3 H9 108.971 H6 C2 H7 109.602
H8 C3 H9 109.602
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability