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: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-477.165592
Energy at 298.15K 
HF Energy-476.734580
Nuclear repulsion energy110.528060
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3172 3021 13.45      
2 A1 3072 2925 30.06      
3 A1 1539 1466 0.06      
4 A1 1442 1373 1.74      
5 A1 1097 1044 18.20      
6 A1 728 693 2.43      
7 A1 280 266 0.01      
8 A2 3157 3006 0.00      
9 A2 1512 1440 0.00      
10 A2 1002 954 0.00      
11 A2 184 175 0.00      
12 B1 3151 3001 34.00      
13 B1 1523 1450 16.14      
14 B1 1038 989 6.91      
15 B1 191 182 0.95      
16 B2 3173 3021 6.23      
17 B2 3074 2927 26.46      
18 B2 1531 1458 17.61      
19 B2 1417 1350 3.85      
20 B2 958 912 0.07      
21 B2 784 746 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 17011.3 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 16199.9 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/6-31G*
ABC
0.58441 0.25281 0.18925

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.667
C2 0.000 1.375 -0.516
C3 0.000 -1.375 -0.516
H4 0.000 2.306 0.058
H5 0.000 -2.306 0.058
H6 0.894 1.354 -1.149
H7 -0.894 1.354 -1.149
H8 -0.894 -1.354 -1.149
H9 0.894 -1.354 -1.149

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7 H8 H9
S11.81351.81352.38532.38532.43492.43492.43492.4349
C21.81352.74921.09463.72551.09571.09572.93992.9399
C31.81352.74923.72551.09462.93992.93991.09571.0957
H42.38531.09463.72554.61281.77891.77893.95633.9563
H52.38533.72551.09464.61283.95633.95631.77891.7789
H62.43491.09572.93991.77893.95631.78873.24482.7072
H72.43491.09572.93991.77893.95631.78872.70723.2448
H82.43492.93991.09573.95631.77893.24482.70721.7887
H92.43492.93991.09573.95631.77892.70723.24481.7887

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 107.639 S1 C2 H6 111.231
S1 C2 H7 111.231 S1 C3 H5 107.639
S1 C3 H8 111.231 S1 C3 H9 111.231
C2 S1 C3 98.572 H4 C2 H6 108.619
H4 C2 H7 108.619 H5 C3 H8 108.619
H5 C3 H9 108.619 H6 C2 H7 109.416
H8 C3 H9 109.416
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability