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All results from a given calculation for CH3CSCH3 (Thioacetone)

using model chemistry: MP2/CEP-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 MP2/CEP-31G*
 hartrees
Energy at 0K-30.365220
Energy at 298.15K-30.371010
HF Energy-29.875435
Nuclear repulsion energy61.793122
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/CEP-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 3217 3054 5.30      
2 A1 3078 2923 26.20      
3 A1 1520 1443 0.45      
4 A1 1428 1356 8.67      
5 A1 1344 1276 78.67      
6 A1 1045 992 0.02      
7 A1 717 681 0.21      
8 A1 366 348 0.17      
9 A2 3158 2999 0.00      
10 A2 1494 1419 0.00      
11 A2 944 896 0.00      
12 A2 75 71 0.00      
13 B1 3163 3003 38.30      
14 B1 1514 1437 30.44      
15 B1 1094 1038 0.11      
16 B1 435 413 3.83      
17 B1 153 145 0.69      
18 B2 3215 3052 14.13      
19 B2 3075 2919 7.45      
20 B2 1486 1411 6.02      
21 B2 1424 1352 15.72      
22 B2 1246 1183 7.61      
23 B2 951 903 0.51      
24 B2 384 365 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 18263.8 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 17339.6 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 MP2/CEP-31G*
ABC
0.28446 0.15934 0.10625

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-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 1.394
C3 0.000 1.286 -1.080
C4 0.000 -1.286 -1.080
H5 0.000 2.176 -0.434
H6 0.000 -2.176 -0.434
H7 0.890 1.303 -1.737
H8 -0.890 1.303 -1.737
H9 -0.890 -1.303 -1.737
H10 0.890 -1.303 -1.737

Atom - Atom Distances (Å)
  C1 S2 C3 C4 H5 H6 H7 H8 H9 H10
C11.64791.52801.52802.18332.18332.16542.16542.16542.1654
S21.64792.78782.78782.84142.84143.50583.50583.50583.5058
C31.52802.78782.57151.10003.52151.10671.10672.81542.8154
C41.52802.78782.57153.52151.10002.81542.81541.10671.1067
H52.18332.84141.10003.52154.35191.80371.80373.82033.8203
H62.18332.84143.52151.10004.35193.82033.82031.80371.8037
H72.16543.50581.10672.81541.80373.82031.78073.15632.6060
H82.16543.50581.10672.81541.80373.82031.78072.60603.1563
H92.16543.50582.81541.10673.82031.80373.15632.60601.7807
H102.16543.50582.81541.10673.82031.80372.60603.15631.7807

picture of Thioacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 111.315 C1 C3 H7 109.505
C1 C3 H8 109.505 C1 C4 H6 111.315
C1 C4 H9 109.505 C1 C4 H10 109.505
S2 C1 C3 122.706 S2 C1 C4 122.706
C3 C1 C4 114.588 H5 C3 H7 109.644
H5 C3 H8 109.644 H6 C4 H9 109.644
H6 C4 H10 109.644 H7 C3 H8 107.134
H9 C4 H10 107.134
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability