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All results from a given calculation for CH3CSCH3 (Thioacetone)

using model chemistry: QCISD/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 QCISD/3-21G*
 hartrees
Energy at 0K-512.545223
Energy at 298.15K-512.551152
HF Energy-512.099841
Nuclear repulsion energy151.244696
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/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 3132 3010 3.44      
2 A1 3019 2902 15.15      
3 A1 1568 1507 2.16      
4 A1 1472 1414 1.29      
5 A1 1331 1280 87.37      
6 A1 1036 996 4.05      
7 A1 683 656 0.10      
8 A1 377 363 0.31      
9 A2 3064 2945 0.00      
10 A2 1550 1489 0.00      
11 A2 987 949 0.00      
12 A2 124 119 0.00      
13 B1 3071 2952 22.34      
14 B1 1568 1507 22.57      
15 B1 1130 1086 0.10      
16 B1 437 420 2.68      
17 B1 160 154 0.71      
18 B2 3130 3008 10.12      
19 B2 3014 2896 2.42      
20 B2 1548 1487 4.69      
21 B2 1456 1399 18.38      
22 B2 1197 1151 9.01      
23 B2 953 916 0.79      
24 B2 396 380 0.97      

Unscaled Zero Point Vibrational Energy (zpe) 18200.5 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 17492.5 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 QCISD/3-21G*
ABC
0.28509 0.16056 0.10687

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

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 1.387
C3 0.000 1.285 -1.079
C4 0.000 -1.285 -1.079
H5 0.000 2.167 -0.429
H6 0.000 -2.167 -0.429
H7 0.890 1.305 -1.728
H8 -0.890 1.305 -1.728
H9 -0.890 -1.305 -1.728
H10 0.890 -1.305 -1.728

Atom - Atom Distances (Å)
  C1 S2 C3 C4 H5 H6 H7 H8 H9 H10
C11.63451.53021.53022.17452.17452.16492.16492.16492.1649
S21.63452.78052.78052.82772.82773.49253.49253.49253.4925
C31.53022.78052.56931.09533.51201.10181.10182.81422.8142
C41.53022.78052.56933.51201.09532.81422.81421.10181.1018
H52.17452.82771.09533.51204.33371.79451.79453.81193.8119
H62.17452.82773.51201.09534.33373.81193.81191.79451.7945
H72.16493.49251.10182.81421.79453.81191.78033.15932.6099
H82.16493.49251.10182.81421.79453.81191.78032.60993.1593
H92.16493.49252.81421.10183.81191.79453.15932.60991.7803
H102.16493.49252.81421.10183.81191.79452.60993.15931.7803

picture of Thioacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 110.739 C1 C3 H7 109.603
C1 C3 H8 109.603 C1 C4 H6 110.739
C1 C4 H9 109.603 C1 C4 H10 109.603
S2 C1 C3 122.913 S2 C1 C4 122.913
C3 C1 C4 114.175 H5 C3 H7 109.526
H5 C3 H8 109.526 H6 C4 H9 109.526
H6 C4 H10 109.526 H7 C3 H8 107.791
H9 C4 H10 107.791
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability