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All results from a given calculation for CH3CSCH3 (Thioacetone)

using model chemistry: CISD/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 CISD/3-21G
 hartrees
Energy at 0K-512.323408
Energy at 298.15K-512.329406
HF Energy-511.995703
Nuclear repulsion energy150.871506
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/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 3213 3024 1.41      
2 A1 3094 2912 11.93      
3 A1 1597 1503 3.02      
4 A1 1511 1422 3.54      
5 A1 1346 1267 95.47      
6 A1 1052 990 7.07      
7 A1 693 653 1.04      
8 A1 391 368 0.64      
9 A2 3133 2949 0.00      
10 A2 1578 1485 0.00      
11 A2 1007 948 0.00      
12 A2 117 111 0.00      
13 B1 3141 2956 18.86      
14 B1 1598 1504 26.95      
15 B1 1154 1086 0.04      
16 B1 452 426 3.53      
17 B1 164 155 0.90      
18 B2 3211 3022 9.44      
19 B2 3085 2904 1.11      
20 B2 1574 1482 6.03      
21 B2 1496 1408 21.35      
22 B2 1251 1178 10.93      
23 B2 992 934 0.77      
24 B2 399 375 1.29      

Unscaled Zero Point Vibrational Energy (zpe) 18623.9 cm-1
Scaled (by 0.9413) Zero Point Vibrational Energy (zpe) 17530.7 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/3-21G
ABC
0.28881 0.15796 0.10616

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.271
S2 0.000 0.000 1.402
C3 0.000 1.276 -1.084
C4 0.000 -1.276 -1.084
H5 0.000 2.153 -0.438
H6 0.000 -2.153 -0.438
H7 0.884 1.300 -1.732
H8 -0.884 1.300 -1.732
H9 -0.884 -1.300 -1.732
H10 0.884 -1.300 -1.732

Atom - Atom Distances (Å)
  C1 S2 C3 C4 H5 H6 H7 H8 H9 H10
C11.67301.51261.51262.15932.15932.14562.14562.14562.1456
S21.67302.79382.79382.83212.83213.50563.50563.50563.5056
C31.51262.79382.55181.08883.48891.09621.09622.79912.7991
C41.51262.79382.55183.48891.08882.79912.79911.09621.0962
H52.15932.83211.08883.48894.30561.78381.78383.79133.7913
H62.15932.83213.48891.08884.30563.79133.79131.78381.7838
H72.14563.50561.09622.79911.78383.79131.76783.14362.5994
H82.14563.50561.09622.79911.78383.79131.76782.59943.1436
H92.14563.50562.79911.09623.79131.78383.14362.59941.7678
H102.14563.50562.79911.09623.79131.78382.59943.14361.7678

picture of Thioacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 111.158 C1 C3 H7 109.623
C1 C3 H8 109.623 C1 C4 H6 111.158
C1 C4 H9 109.623 C1 C4 H10 109.623
S2 C1 C3 122.490 S2 C1 C4 122.490
C3 C1 C4 115.019 H5 C3 H7 109.444
H5 C3 H8 109.444 H6 C4 H9 109.444
H6 C4 H10 109.444 H7 C3 H8 107.473
H9 C4 H10 107.473
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability