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

using model chemistry: CISD/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 CISD/Def2TZVPP
 hartrees
Energy at 0K-627.426005
Energy at 298.15K 
HF Energy-626.571310
Nuclear repulsion energy278.824803
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 CISD/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 3287 3287 0.70      
2 A1 3186 3186 1.23      
3 A1 1536 1536 2.95      
4 A1 1445 1445 30.77      
5 A1 1268 1268 184.47      
6 A1 1068 1068 3.12      
7 A1 754 754 10.00      
8 A1 535 535 34.02      
9 A1 287 287 2.55      
10 A2 3293 3293 0.00      
11 A2 1522 1522 0.00      
12 A2 988 988 0.00      
13 A2 321 321 0.00      
14 A2 200 200 0.00      
15 B1 3298 3298 1.96      
16 B1 1540 1540 0.70      
17 B1 1467 1467 298.59      
18 B1 1051 1051 1.44      
19 B1 385 385 0.68      
20 B1 237 237 0.44      
21 B2 3285 3285 0.37      
22 B2 3184 3184 0.24      
23 B2 1526 1526 4.57      
24 B2 1429 1429 19.21      
25 B2 1001 1001 89.36      
26 B2 811 811 32.01      
27 B2 496 496 47.56      

Unscaled Zero Point Vibrational Energy (zpe) 19700.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19700.4 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 CISD/Def2TZVPP
ABC
0.15810 0.14628 0.14206

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.186
O2 -1.230 0.000 0.897
O3 1.230 0.000 0.897
C4 0.000 1.382 -0.898
C5 0.000 -1.382 -0.898
H6 0.000 2.256 -0.264
H7 0.000 -2.256 -0.264
H8 0.892 1.367 -1.504
H9 -0.892 1.367 -1.504
H10 -0.892 -1.367 -1.504
H11 0.892 -1.367 -1.504

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.42071.42071.75671.75672.30082.30082.34952.34952.34952.3495
O21.42072.45992.57802.57802.82002.82003.48362.78362.78363.4836
O31.42072.45992.57802.57802.82002.82002.78363.48363.48362.7836
C41.75672.57802.57802.76431.07973.69321.07841.07842.95272.9527
C51.75672.57802.57802.76433.69321.07972.95272.95271.07841.0784
H62.30082.82002.82001.07973.69324.51251.76751.76753.93163.9316
H72.30082.82002.82003.69321.07974.51253.93163.93161.76751.7675
H82.34953.48362.78361.07842.95271.76753.93161.78353.26362.7331
H92.34952.78363.48361.07842.95271.76753.93161.78352.73313.2636
H102.34952.78363.48362.95271.07843.93161.76753.26362.73311.7835
H112.34953.48362.78362.95271.07843.93161.76752.73313.26361.7835

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 105.944 S1 C4 H8 109.604
S1 C4 H9 109.604 S1 C5 H7 105.944
S1 C5 H10 109.604 S1 C5 H11 109.604
O2 S1 O3 119.936 O2 S1 C4 107.993
O2 S1 C5 107.993 O3 S1 C4 107.993
O3 S1 C5 107.993 C4 S1 C5 103.777
H6 C4 H8 109.978 H6 C4 H9 109.978
H7 C5 H10 109.978 H7 C5 H11 109.978
H8 C4 H9 111.576 H10 C5 H11 111.576
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability