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

using model chemistry: QCISD/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-627.615736
Energy at 298.15K 
HF Energy-626.569550
Nuclear repulsion energy276.136157
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/Def2TZVPP
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 3185 3185 1.08      
2 A1 3085 3085 1.76      
3 A1 1482 1482 2.48      
4 A1 1380 1380 22.41      
5 A1 1202 1202 156.10      
6 A1 1024 1024 1.81      
7 A1 714 714 9.90      
8 A1 503 503 27.80      
9 A1 274 274 2.23      
10 A2 3190 3190 0.00      
11 A2 1467 1467 0.00      
12 A2 945 945 0.00      
13 A2 304 304 0.00      
14 A2 186 186 0.00      
15 B1 3194 3194 2.52      
16 B1 1484 1484 1.80      
17 B1 1398 1398 243.77      
18 B1 1005 1005 1.06      
19 B1 366 366 0.63      
20 B1 223 223 0.40      
21 B2 3183 3183 0.20      
22 B2 3082 3082 0.02      
23 B2 1472 1472 4.94      
24 B2 1364 1364 15.31      
25 B2 958 958 75.23      
26 B2 772 772 34.22      
27 B2 469 469 39.36      

Unscaled Zero Point Vibrational Energy (zpe) 18954.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18954.3 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 QCISD/Def2TZVPP
ABC
0.15450 0.14371 0.13982

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.189
O2 -1.246 0.000 0.906
O3 1.246 0.000 0.906
C4 0.000 1.391 -0.909
C5 0.000 -1.391 -0.909
H6 0.000 2.271 -0.270
H7 0.000 -2.271 -0.270
H8 0.899 1.371 -1.519
H9 -0.899 1.371 -1.519
H10 -0.899 -1.371 -1.519
H11 0.899 -1.371 -1.519

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.43711.43711.77191.77192.31742.31742.36762.36762.36762.3676
O21.43712.49202.60342.60342.84502.84503.51542.80652.80653.5154
O31.43712.49202.60342.60342.84502.84502.80653.51543.51542.8065
C41.77192.60342.60342.78111.08803.71721.08681.08682.96752.9675
C51.77192.60342.60342.78113.71721.08802.96752.96751.08681.0868
H62.31742.84502.84501.08803.71724.54291.78291.78293.95403.9540
H72.31742.84502.84503.71721.08804.54293.95403.95401.78291.7829
H82.36763.51542.80651.08682.96751.78293.95401.79853.27902.7418
H92.36762.80653.51541.08682.96751.78293.95401.79852.74183.2790
H102.36762.80653.51542.96751.08683.95401.78293.27902.74181.7985
H112.36763.51542.80652.96751.08683.95401.78292.74183.27901.7985

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 105.761 S1 C4 H8 109.492
S1 C4 H9 109.492 S1 C5 H7 105.761
S1 C5 H10 109.492 S1 C5 H11 109.492
O2 S1 O3 120.225 O2 S1 C4 107.989
O2 S1 C5 107.989 O3 S1 C4 107.989
O3 S1 C5 107.989 C4 S1 C5 103.402
H6 C4 H8 110.126 H6 C4 H9 110.126
H7 C5 H10 110.126 H7 C5 H11 110.126
H8 C4 H9 111.670 H10 C5 H11 111.670
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability