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All results from a given calculation for CH3CSCH3 (Thioacetone)

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-515.153434
Energy at 298.15K-515.159330
HF Energy-514.593058
Nuclear repulsion energy152.156146
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
4/u)
Dep P Dep U
1 A1 3188 3036 4.65      
2 A1 3060 2914 20.22      
3 A1 1543 1469 0.32      
4 A1 1457 1388 5.76      
5 A1 1343 1279 99.15      
6 A1 1046 996 2.85      
7 A1 718 684 0.62      
8 A1 382 364 0.37      
9 A2 3115 2966 0.00      
10 A2 1518 1445 0.00      
11 A2 956 911 0.00      
12 A2 97 92 0.00      
13 B1 3121 2972 24.37      
14 B1 1538 1464 21.52      
15 B1 1111 1058 0.02      
16 B1 446 425 1.62      
17 B1 161 153 0.50      
18 B2 3186 3034 9.30      
19 B2 3054 2908 3.29      
20 B2 1517 1445 5.30      
21 B2 1447 1378 17.29      
22 B2 1258 1198 6.52      
23 B2 969 922 0.35      
24 B2 396 377 1.02      

Unscaled Zero Point Vibrational Energy (zpe) 18312.1 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 17438.6 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
0.29075 0.16216 0.10831

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)
C1 0.000 0.000 -0.254
S2 0.000 0.000 1.382
C3 0.000 1.270 -1.069
C4 0.000 -1.270 -1.069
H5 0.000 2.155 -0.429
H6 0.000 -2.155 -0.429
H7 0.884 1.295 -1.723
H8 -0.884 1.295 -1.723
H9 -0.884 -1.295 -1.723
H10 0.884 -1.295 -1.723

Atom - Atom Distances (Å)
  C1 S2 C3 C4 H5 H6 H7 H8 H9 H10
C11.63601.50911.50912.16252.16252.14792.14792.14792.1479
S21.63602.76062.76062.81532.81533.47793.47793.47793.4779
C31.50912.76062.54011.09243.48471.09931.09932.79022.7902
C41.50912.76062.54013.48471.09242.79022.79021.09931.0993
H52.16252.81531.09243.48474.31081.78741.78743.78893.7889
H62.16252.81533.48471.09244.31083.78893.78891.78741.7874
H72.14793.47791.09932.79021.78743.78891.76703.13472.5891
H82.14793.47791.09932.79021.78743.78891.76702.58913.1347
H92.14793.47792.79021.09933.78891.78743.13472.58911.7670
H102.14793.47792.79021.09933.78891.78742.58913.13471.7670

picture of Thioacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 111.450 C1 C3 H7 109.871
C1 C3 H8 109.871 C1 C4 H6 111.450
C1 C4 H9 109.871 C1 C4 H10 109.871
S2 C1 C3 122.691 S2 C1 C4 122.691
C3 C1 C4 114.617 H5 C3 H7 109.282
H5 C3 H8 109.282 H6 C4 H9 109.282
H6 C4 H10 109.282 H7 C3 H8 106.976
H9 C4 H10 106.976
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability