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All results from a given calculation for CH3CSCH3 (Thioacetone)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CBS-Q
 hartrees
Energy at 0K-515.406664
Energy at 298.15K-515.400184
HF Energy-514.593638
Nuclear repulsion energy153.087348
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 CBS-Q
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 3324 3324 4.53      
2 A1 3187 3187 28.65      
3 A1 1629 1629 0.67      
4 A1 1543 1543 4.08      
5 A1 1416 1416 178.32      
6 A1 1110 1110 14.90      
7 A1 750 750 5.24      
8 A1 398 398 1.23      
9 A2 3234 3234 0.00      
10 A2 1603 1603 0.00      
11 A2 1006 1006 0.00      
12 A2 84 84 0.00      
13 B1 3243 3243 32.43      
14 B1 1626 1626 20.74      
15 B1 1177 1177 0.05      
16 B1 482 482 0.62      
17 B1 164 164 0.20      
18 B2 3322 3322 11.63      
19 B2 3178 3178 3.22      
20 B2 1597 1597 4.74      
21 B2 1534 1534 9.87      
22 B2 1312 1312 6.87      
23 B2 1013 1013 0.52      
24 B2 415 415 1.89      

Unscaled Zero Point Vibrational Energy (zpe) 19173.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19173.2 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 CBS-Q
ABC
0.29056 0.16280 0.10856

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.247
S2 0.000 0.000 1.371
C3 0.000 1.269 -1.062
C4 0.000 -1.269 -1.062
H5 0.000 2.150 -0.433
H6 0.000 -2.150 -0.433
H7 0.876 1.289 -1.711
H8 -0.876 1.289 -1.711
H9 -0.876 -1.289 -1.711
H10 0.876 -1.289 -1.711

Atom - Atom Distances (Å)
  C1 S2 C3 C4 H5 H6 H7 H8 H9 H10
C11.61761.50861.50862.15782.15782.13822.13822.13822.1382
S21.61762.74412.74412.80602.80603.45333.45333.45333.4533
C31.50862.74412.53851.08243.47651.09001.09002.78072.7807
C41.50862.74412.53853.47651.08242.78072.78071.09001.0900
H52.15782.80601.08243.47654.29951.77251.77253.77173.7717
H62.15782.80603.47651.08244.29953.77173.77171.77251.7725
H72.13823.45331.09002.78071.77253.77171.75143.11662.5779
H82.13823.45331.09002.78071.77253.77171.75142.57793.1166
H92.13823.45332.78071.09003.77171.77253.11662.57791.7514
H102.13823.45332.78071.09003.77171.77252.57793.11661.7514

picture of Thioacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 111.720 C1 C3 H7 109.686
C1 C3 H8 109.686 C1 C4 H6 111.720
C1 C4 H9 109.686 C1 C4 H10 109.686
S2 C1 C3 122.716 S2 C1 C4 122.716
C3 C1 C4 114.568 H5 C3 H7 109.359
H5 C3 H8 109.359 H6 C4 H9 109.359
H6 C4 H10 109.359 H7 C3 H8 106.910
H9 C4 H10 106.910
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability