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

using model chemistry: CCD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/6-31G*
 hartrees
Energy at 0K-627.177784
Energy at 298.15K-627.185897
HF Energy-626.389506
Nuclear repulsion energy272.975961
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 CCD/6-31G*
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 3215 3043 0.44      
2 A1 3111 2944 1.10      
3 A1 1511 1430 3.47      
4 A1 1431 1355 20.34      
5 A1 1189 1126 181.27      
6 A1 1061 1004 0.00      
7 A1 726 687 9.85      
8 A1 501 474 31.10      
9 A1 279 264 2.54      
10 A2 3218 3046 0.00      
11 A2 1500 1420 0.00      
12 A2 992 939 0.00      
13 A2 298 282 0.00      
14 A2 198 187 0.00      
15 B1 3222 3049 2.29      
16 B1 1516 1435 12.59      
17 B1 1384 1310 251.33      
18 B1 1052 995 0.79      
19 B1 372 352 1.29      
20 B1 228 216 0.52      
21 B2 3213 3042 0.48      
22 B2 3108 2942 0.07      
23 B2 1502 1422 7.49      
24 B2 1414 1338 19.87      
25 B2 1007 953 71.54      
26 B2 800 757 44.16      
27 B2 465 440 45.45      

Unscaled Zero Point Vibrational Energy (zpe) 19255.7 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 18225.5 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 CCD/6-31G*
ABC
0.15106 0.13973 0.13769

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.059
O2 -1.356 0.000 0.971
O3 1.356 0.000 0.971
C4 0.000 1.287 -0.848
C5 0.000 -1.287 -0.848
H6 0.000 2.132 -0.241
H7 0.000 -2.132 -0.241
H8 0.854 1.294 -1.455
H9 -0.854 1.294 -1.455
H10 -0.854 -1.294 -1.455
H11 0.854 -1.294 -1.455

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.63431.63431.57491.57492.15342.15342.16722.16722.16722.1672
O21.63432.71252.60882.60882.80282.80283.52782.79512.79513.5278
O31.63432.71252.60882.60882.80282.80282.79513.52783.52782.7951
C41.57492.60882.60882.57451.04033.47301.04761.04762.78602.7860
C51.57492.60882.60882.57453.47301.04032.78602.78601.04761.0476
H62.15342.80282.80281.04033.47304.26461.70421.70423.73413.7341
H72.15342.80282.80283.47301.04034.26463.73413.73411.70421.7042
H82.16723.52782.79511.04762.78601.70423.73411.70803.10122.5885
H92.16722.79513.52781.04762.78601.70423.73411.70802.58853.1012
H102.16722.79513.52782.78601.04763.73411.70423.10122.58851.7080
H112.16723.52782.79512.78601.04763.73411.70422.58853.10121.7080

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 109.142 S1 C4 H8 109.825
S1 C4 H9 109.825 S1 C5 H7 109.142
S1 C5 H10 109.825 S1 C5 H11 109.825
O2 S1 O3 112.174 O2 S1 C4 108.750
O2 S1 C5 108.750 O3 S1 C4 108.750
O3 S1 C5 108.750 C4 S1 C5 109.643
H6 C4 H8 109.412 H6 C4 H9 109.412
H7 C5 H10 109.412 H7 C5 H11 109.412
H8 C4 H9 109.210 H10 C5 H11 109.210
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability