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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-474.602504
Energy at 298.15K 
HF Energy-474.347891
Nuclear repulsion energy107.085304
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 3218 3029 6.67      
2 A1 3123 2940 18.61      
3 A1 1586 1492 1.20      
4 A1 1450 1365 1.65      
5 A1 1092 1028 18.53      
6 A1 636 599 3.50      
7 A1 248 234 0.05      
8 A2 3212 3023 0.00      
9 A2 1568 1476 0.00      
10 A2 995 936 0.00      
11 A2 165 156 0.00      
12 B1 3209 3020 24.04      
13 B1 1577 1485 22.19      
14 B1 1024 964 7.60      
15 B1 164 154 0.89      
16 B2 3218 3029 2.92      
17 B2 3122 2939 18.84      
18 B2 1577 1485 17.26      
19 B2 1424 1341 6.67      
20 B2 969 912 0.15      
21 B2 683 643 1.96      

Unscaled Zero Point Vibrational Energy (zpe) 17129.6 cm-1
Scaled (by 0.9413) Zero Point Vibrational Energy (zpe) 16124.1 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
0.53950 0.23587 0.17519

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 0.699
C2 0.000 1.434 -0.549
C3 0.000 -1.434 -0.549
H4 0.000 2.352 0.037
H5 0.000 -2.352 0.037
H6 0.897 1.383 -1.165
H7 -0.897 1.383 -1.165
H8 -0.897 -1.383 -1.165
H9 0.897 -1.383 -1.165

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7 H8 H9
S11.90121.90122.44372.44372.48832.48832.48832.4883
C21.90122.86831.08943.83171.08971.08973.01973.0197
C31.90122.86833.83171.08943.01973.01971.08971.0897
H42.44371.08943.83174.70481.78641.78644.02504.0250
H52.44373.83171.08944.70484.02504.02501.78641.7864
H62.48831.08973.01971.78644.02501.79483.29652.7651
H72.48831.08973.01971.78644.02501.79482.76513.2965
H82.48833.01971.08974.02501.78643.29652.76511.7948
H92.48833.01971.08974.02501.78642.76513.29651.7948

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 106.409 S1 C2 H6 109.595
S1 C2 H7 109.595 S1 C3 H5 106.409
S1 C3 H8 109.595 S1 C3 H9 109.595
C2 S1 C3 97.936 H4 C2 H6 110.129
H4 C2 H7 110.129 H5 C3 H8 110.129
H5 C3 H9 110.129 H6 C2 H7 110.881
H8 C3 H9 110.881
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability