return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3CSCH3 (Thioacetone)

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-512.331629
Energy at 298.15K-512.337612
HF Energy-511.995063
Nuclear repulsion energy150.284516
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 MP2/3-21G
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 3187 3042 1.31      
2 A1 3070 2930 11.25      
3 A1 1588 1516 5.97      
4 A1 1490 1422 3.00      
5 A1 1327 1267 57.94      
6 A1 1036 989 0.61      
7 A1 680 649 0.37      
8 A1 385 368 0.26      
9 A2 3121 2979 0.00      
10 A2 1569 1498 0.00      
11 A2 999 953 0.00      
12 A2 129 123 0.00      
13 B1 3127 2985 19.33      
14 B1 1588 1515 23.99      
15 B1 1141 1089 0.00      
16 B1 439 419 4.97      
17 B1 168 160 1.07      
18 B2 3186 3041 10.05      
19 B2 3065 2925 1.54      
20 B2 1568 1497 4.45      
21 B2 1476 1408 20.66      
22 B2 1232 1176 11.91      
23 B2 981 936 1.15      
24 B2 395 377 0.86      

Unscaled Zero Point Vibrational Energy (zpe) 18471.7 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 17631.3 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 MP2/3-21G
ABC
0.28660 0.15669 0.10531

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.277
S2 0.000 0.000 1.408
C3 0.000 1.281 -1.088
C4 0.000 -1.281 -1.088
H5 0.000 2.156 -0.435
H6 0.000 -2.156 -0.435
H7 0.886 1.309 -1.736
H8 -0.886 1.309 -1.736
H9 -0.886 -1.309 -1.736
H10 0.886 -1.309 -1.736

Atom - Atom Distances (Å)
  C1 S2 C3 C4 H5 H6 H7 H8 H9 H10
C11.68511.51571.51572.16212.16212.15132.15132.15132.1513
S21.68512.80502.80502.83672.83673.51923.51923.51923.5192
C31.51572.80502.56161.09193.49851.09831.09832.81342.8134
C41.51572.80502.56163.49851.09192.81342.81341.09831.0983
H52.16212.83671.09193.49854.31261.78731.78733.80643.8064
H62.16212.83673.49851.09194.31263.80643.80641.78731.7873
H72.15133.51921.09832.81341.78733.80641.77213.16212.6190
H82.15133.51921.09832.81341.78733.80641.77212.61903.1621
H92.15133.51922.81341.09833.80641.78733.16212.61901.7721
H102.15133.51922.81341.09833.80641.78732.61903.16211.7721

picture of Thioacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 110.981 C1 C3 H7 109.741
C1 C3 H8 109.741 C1 C4 H6 110.981
C1 C4 H9 109.741 C1 C4 H10 109.741
S2 C1 C3 122.326 S2 C1 C4 122.326
C3 C1 C4 115.348 H5 C3 H7 109.379
H5 C3 H8 109.379 H6 C4 H9 109.379
H6 C4 H10 109.379 H7 C3 H8 107.551
H9 C4 H10 107.551
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability