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All results from a given calculation for CH3CSCH3 (Thioacetone)

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-515.069981
Energy at 298.15K-515.075964
HF Energy-514.593847
Nuclear repulsion energy153.126183
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 3272 3029 3.50      
2 A1 3142 2909 18.68      
3 A1 1583 1466 0.00      
4 A1 1497 1386 6.87      
5 A1 1395 1291 122.37      
6 A1 1083 1002 3.42      
7 A1 746 690 0.94      
8 A1 392 363 0.56      
9 A2 3195 2958 0.00      
10 A2 1555 1439 0.00      
11 A2 979 907 0.00      
12 A2 95 88 0.00      
13 B1 3202 2964 22.87      
14 B1 1576 1459 23.05      
15 B1 1144 1059 0.03      
16 B1 466 431 1.61      
17 B1 166 154 0.50      
18 B2 3270 3028 8.66      
19 B2 3134 2901 2.55      
20 B2 1553 1438 5.89      
21 B2 1488 1377 16.76      
22 B2 1289 1193 6.61      
23 B2 992 919 0.32      
24 B2 408 377 1.15      

Unscaled Zero Point Vibrational Energy (zpe) 18810.2 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 17414.5 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
0.29340 0.16454 0.10968

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)
C1 0.000 0.000 -0.248
S2 0.000 0.000 1.371
C3 0.000 1.265 -1.062
C4 0.000 -1.265 -1.062
H5 0.000 2.146 -0.429
H6 0.000 -2.146 -0.429
H7 0.878 1.287 -1.712
H8 -0.878 1.287 -1.712
H9 -0.878 -1.287 -1.712
H10 0.878 -1.287 -1.712

Atom - Atom Distances (Å)
  C1 S2 C3 C4 H5 H6 H7 H8 H9 H10
C11.61961.50391.50392.15402.15402.13762.13762.13762.1376
S21.61962.74252.74252.80142.80143.45463.45463.45463.4546
C31.50392.74252.52941.08563.46941.09261.09262.77552.7755
C41.50392.74252.52943.46941.08562.77552.77551.09261.0926
H52.15402.80141.08563.46944.29281.77671.77673.76893.7689
H62.15402.80143.46941.08564.29283.76893.76891.77671.7767
H72.13763.45461.09262.77551.77673.76891.75583.11552.5736
H82.13763.45461.09262.77551.77673.76891.75582.57363.1155
H92.13763.45462.77551.09263.76891.77673.11552.57361.7558
H102.13763.45462.77551.09263.76891.77672.57363.11551.7558

picture of Thioacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 111.548 C1 C3 H7 109.812
C1 C3 H8 109.812 C1 C4 H6 111.548
C1 C4 H9 109.812 C1 C4 H10 109.812
S2 C1 C3 122.762 S2 C1 C4 122.762
C3 C1 C4 114.476 H5 C3 H7 109.309
H5 C3 H8 109.309 H6 C4 H9 109.309
H6 C4 H10 109.309 H7 C3 H8 106.936
H9 C4 H10 106.936
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability