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

using model chemistry: CISD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CISD/6-31G
 hartrees
Energy at 0K-476.920331
Energy at 298.15K 
HF Energy-476.667432
Nuclear repulsion energy107.389827
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/6-31G
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 3215 3015 11.42      
2 A1 3109 2916 26.43      
3 A1 1562 1465 0.86      
4 A1 1454 1363 2.54      
5 A1 1100 1032 21.36      
6 A1 657 616 2.61      
7 A1 254 238 0.03      
8 A2 3203 3004 0.00      
9 A2 1540 1444 0.00      
10 A2 1008 945 0.00      
11 A2 158 148 0.00      
12 B1 3199 3000 34.66      
13 B1 1549 1453 21.37      
14 B1 1039 974 7.46      
15 B1 162 152 0.93      
16 B2 3215 3015 5.45      
17 B2 3107 2914 27.41      
18 B2 1554 1457 17.44      
19 B2 1430 1341 5.69      
20 B2 973 913 0.02      
21 B2 711 667 0.95      

Unscaled Zero Point Vibrational Energy (zpe) 17099.3 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 16035.7 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/6-31G
ABC
0.55183 0.23533 0.17617

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.689
C2 0.000 1.434 -0.540
C3 0.000 -1.434 -0.540
H4 0.000 2.353 0.050
H5 0.000 -2.353 0.050
H6 0.897 1.397 -1.162
H7 -0.897 1.397 -1.162
H8 -0.897 -1.397 -1.162
H9 0.897 -1.397 -1.162

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7 H8 H9
S11.88861.88862.43832.43832.48692.48692.48692.4869
C21.88862.86821.09203.83281.09281.09283.03453.0345
C31.88862.86823.83281.09203.03453.03451.09281.0928
H42.43831.09203.83284.70611.78591.78594.04214.0421
H52.43833.83281.09204.70614.04214.04211.78591.7859
H62.48691.09283.03451.78594.04211.79463.32082.7941
H72.48691.09283.03451.78594.04211.79462.79413.3208
H82.48693.03451.09284.04211.78593.32082.79411.7946
H92.48693.03451.09284.04211.78592.79413.32081.7946

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 106.707 S1 C2 H6 110.179
S1 C2 H7 110.179 S1 C3 H5 106.707
S1 C3 H8 110.179 S1 C3 H9 110.179
C2 S1 C3 98.812 H4 C2 H6 109.653
H4 C2 H7 109.653 H5 C3 H8 109.653
H5 C3 H9 109.653 H6 C2 H7 110.397
H8 C3 H9 110.397
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability