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All results from a given calculation for CH3CSCH3 (Thioacetone)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-512.499473
Energy at 298.15K-512.505451
HF Energy-512.100530
Nuclear repulsion energy151.678492
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 MP2/3-21G*
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 3188 3033 2.20      
2 A1 3073 2923 9.97      
3 A1 1590 1512 3.80      
4 A1 1486 1414 2.11      
5 A1 1350 1284 70.39      
6 A1 1052 1001 0.73      
7 A1 695 661 0.29      
8 A1 383 364 0.22      
9 A2 3127 2975 0.00      
10 A2 1570 1494 0.00      
11 A2 997 948 0.00      
12 A2 126 120 0.00      
13 B1 3134 2981 17.89      
14 B1 1589 1512 23.56      
15 B1 1145 1089 0.09      
16 B1 445 424 3.42      
17 B1 164 156 0.96      
18 B2 3187 3031 8.86      
19 B2 3068 2918 1.60      
20 B2 1569 1492 4.37      
21 B2 1469 1398 20.24      
22 B2 1212 1153 10.82      
23 B2 964 917 1.25      
24 B2 402 382 0.86      

Unscaled Zero Point Vibrational Energy (zpe) 18491.4 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 17590.9 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 MP2/3-21G*
ABC
0.28666 0.16151 0.10748

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.248
S2 0.000 0.000 1.383
C3 0.000 1.281 -1.075
C4 0.000 -1.281 -1.075
H5 0.000 2.159 -0.426
H6 0.000 -2.159 -0.426
H7 0.887 1.303 -1.722
H8 -0.887 1.303 -1.722
H9 -0.887 -1.303 -1.722
H10 0.887 -1.303 -1.722

Atom - Atom Distances (Å)
  C1 S2 C3 C4 H5 H6 H7 H8 H9 H10
C11.63161.52501.52502.16592.16592.15802.15802.15802.1580
S21.63162.77252.77252.81632.81633.48253.48253.48253.4825
C31.52502.77252.56241.09193.50071.09791.09792.80782.8078
C41.52502.77252.56243.50071.09192.80782.80781.09791.0979
H52.16592.81631.09193.50074.31731.78871.78873.80163.8016
H62.16592.81633.50071.09194.31733.80163.80161.78871.7887
H72.15803.48251.09792.80781.78873.80161.77393.15282.6064
H82.15803.48251.09792.80781.78873.80161.77392.60643.1528
H92.15803.48252.80781.09793.80161.78873.15282.60641.7739
H102.15803.48252.80781.09793.80161.78872.60643.15281.7739

picture of Thioacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 110.633 C1 C3 H7 109.649
C1 C3 H8 109.649 C1 C4 H6 110.633
C1 C4 H9 109.649 C1 C4 H10 109.649
S2 C1 C3 122.843 S2 C1 C4 122.843
C3 C1 C4 114.313 H5 C3 H7 109.541
H5 C3 H8 109.541 H6 C4 H9 109.541
H6 C4 H10 109.541 H7 C3 H8 107.779
H9 C4 H10 107.779
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability