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

using model chemistry: QCISD/TZVP

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/TZVP
 hartrees
Energy at 0K-477.277896
Energy at 298.15K 
HF Energy-476.785466
Nuclear repulsion energy110.402406
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/TZVP
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 3176 3034 15.51      
2 A1 3071 2934 34.92      
3 A1 1510 1443 0.18      
4 A1 1419 1355 3.01      
5 A1 1073 1025 12.03      
6 A1 713 681 2.54      
7 A1 269 257 0.00      
8 A2 3159 3017 0.00      
9 A2 1471 1405 0.00      
10 A2 966 923 0.00      
11 A2 131 125 0.00      
12 B1 3152 3012 40.43      
13 B1 1481 1415 11.73      
14 B1 1013 968 3.93      
15 B1 181 173 1.02      
16 B2 3176 3034 8.29      
17 B2 3073 2936 31.01      
18 B2 1498 1431 13.66      
19 B2 1391 1329 8.79      
20 B2 936 894 0.05      
21 B2 764 730 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 16811.4 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 16059.9 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/TZVP
ABC
0.57794 0.25299 0.18858

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.672
C2 0.000 1.375 -0.521
C3 0.000 -1.375 -0.521
H4 0.000 2.303 0.049
H5 0.000 -2.303 0.049
H6 0.892 1.348 -1.148
H7 -0.892 1.348 -1.148
H8 -0.892 -1.348 -1.148
H9 0.892 -1.348 -1.148

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7 H8 H9
S11.82101.82102.38622.38622.43432.43432.43432.4343
C21.82102.75101.08913.72281.09021.09022.93362.9336
C31.82102.75103.72281.08912.93362.93361.09021.0902
H42.38621.08913.72284.60681.77211.77213.94483.9448
H52.38623.72281.08914.60683.94483.94481.77211.7721
H62.43431.09022.93361.77213.94481.78303.23252.6963
H72.43431.09022.93361.77213.94481.78302.69633.2325
H82.43432.93361.09023.94481.77213.23252.69631.7830
H92.43432.93361.09023.94481.77212.69633.23251.7830

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 107.487 S1 C2 H6 110.974
S1 C2 H7 110.974 S1 C3 H5 107.487
S1 C3 H8 110.974 S1 C3 H9 110.974
C2 S1 C3 98.111 H4 C2 H6 108.809
H4 C2 H7 108.809 H5 C3 H8 108.809
H5 C3 H9 108.809 H6 C2 H7 109.714
H8 C3 H9 109.714
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability