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All results from a given calculation for C2H6O2S (Dimethyl sulfone)

using model chemistry: QCISD(T)/cc-pVTZ

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(T)/cc-pVTZ
 hartrees
Energy at 0K-627.635947
Energy at 298.15K 
HF Energy-626.543836
Nuclear repulsion energy273.648493
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(T)/cc-pVTZ
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 3168 3005        
2 A1 3063 2905        
3 A1 1468 1393        
4 A1 1352 1282        
5 A1 1164 1104        
6 A1 1006 954        
7 A1 690 654        
8 A1 483 458        
9 A1 264 250        
10 A2 3172 3009        
11 A2 1454 1379        
12 A2 932 884        
13 A2 294 279        
14 A2 183 173        
15 B1 3176 3012        
16 B1 1468 1392        
17 B1 1358 1288        
18 B1 990 939        
19 B1 352 334        
20 B1 235 223        
21 B2 3167 3004        
22 B2 3061 2904        
23 B2 1455 1380        
24 B2 1335 1266        
25 B2 944 896        
26 B2 751 712        
27 B2 451 427        

Unscaled Zero Point Vibrational Energy (zpe) 18716.4 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 17754.4 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(T)/cc-pVTZ
ABC
0.15120 0.14111 0.13779

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.192
O2 -1.263 0.000 0.913
O3 1.263 0.000 0.913
C4 0.000 1.400 -0.918
C5 0.000 -1.400 -0.918
H6 0.000 2.282 -0.278
H7 0.000 -2.282 -0.278
H8 0.902 1.375 -1.528
H9 -0.902 1.375 -1.528
H10 -0.902 -1.375 -1.528
H11 0.902 -1.375 -1.528

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.45421.45421.78691.78692.32982.32982.37932.37932.37932.3793
O21.45422.52592.62852.62852.86732.86733.54032.82452.82453.5403
O31.45422.52592.62852.62852.86732.86732.82453.54033.54032.8245
C41.78692.62852.62852.80001.08953.73701.08871.08872.98082.9808
C51.78692.62852.62852.80003.73701.08952.98082.98081.08871.0887
H62.32982.86732.86731.08953.73704.56371.78781.78783.96823.9682
H72.32982.86732.86733.73701.08954.56373.96823.96821.78781.7878
H82.37933.54032.82451.08872.98081.78783.96821.80363.28872.7500
H92.37932.82453.54031.08872.98081.78783.96821.80362.75003.2887
H102.37932.82453.54032.98081.08873.96821.78783.28872.75001.8036
H112.37933.54032.82452.98081.08873.96821.78782.75003.28871.8036

picture of Dimethyl sulfone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C4 H6 105.616 S1 C4 H8 109.257
S1 C4 H9 109.257 S1 C5 H7 105.616
S1 C5 H10 109.257 S1 C5 H11 109.257
O2 S1 O3 120.562 O2 S1 C4 107.942
O2 S1 C5 107.942 O3 S1 C4 107.942
O3 S1 C5 107.942 C4 S1 C5 103.163
H6 C4 H8 110.323 H6 C4 H9 110.323
H7 C5 H10 110.323 H7 C5 H11 110.323
H8 C4 H9 111.864 H10 C5 H11 111.864
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability