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

using model chemistry: CCD/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-627.588178
Energy at 298.15K 
HF Energy-626.556127
Nuclear repulsion energy277.059483
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/6-311+G(3df,2p)
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 3192 3011 0.63      
2 A1 3090 2914 1.40      
3 A1 1491 1406 2.90      
4 A1 1395 1315 26.78      
5 A1 1225 1155 168.26      
6 A1 1036 977 2.46      
7 A1 732 690 9.02      
8 A1 514 484 28.51      
9 A1 280 264 2.39      
10 A2 3198 3016 0.00      
11 A2 1478 1394 0.00      
12 A2 961 906 0.00      
13 A2 312 294 0.00      
14 A2 201 190 0.00      
15 B1 3202 3020 1.44      
16 B1 1496 1411 1.29      
17 B1 1419 1338 287.08      
18 B1 1021 962 1.31      
19 B1 373 352 0.56      
20 B1 234 221 0.37      
21 B2 3191 3009 0.50      
22 B2 3087 2912 0.15      
23 B2 1481 1396 4.85      
24 B2 1379 1300 17.47      
25 B2 971 915 75.73      
26 B2 788 743 30.06      
27 B2 479 452 40.21      

Unscaled Zero Point Vibrational Energy (zpe) 19110.9 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 18023.5 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/6-311+G(3df,2p)
ABC
0.15580 0.14457 0.14064

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.189
O2 -1.240 0.000 0.902
O3 1.240 0.000 0.902
C4 0.000 1.388 -0.905
C5 0.000 -1.388 -0.905
H6 0.000 2.269 -0.267
H7 0.000 -2.269 -0.267
H8 0.899 1.368 -1.515
H9 -0.899 1.368 -1.515
H10 -0.899 -1.368 -1.515
H11 0.899 -1.368 -1.515

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.43051.43051.76671.76672.31472.31472.36302.36302.36302.3630
O21.43052.48052.59352.59352.83792.83793.50572.79782.79783.5057
O31.43052.48052.59352.59352.83792.83792.79783.50573.50572.7978
C41.76672.59352.59352.77511.08823.71211.08711.08712.96222.9622
C51.76672.59352.59352.77513.71211.08822.96222.96221.08711.0871
H62.31472.83792.83791.08823.71214.53871.78291.78293.94933.9493
H72.31472.83792.83793.71211.08824.53873.94933.94931.78291.7829
H82.36303.50572.79781.08712.96221.78293.94931.79883.27442.7361
H92.36302.79783.50571.08712.96221.78293.94931.79882.73613.2744
H102.36302.79783.50572.96221.08713.94931.78293.27442.73611.7988
H112.36303.50572.79782.96221.08713.94931.78292.73613.27441.7988

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 105.883 S1 C4 H8 109.476
S1 C4 H9 109.476 S1 C5 H7 105.883
S1 C5 H10 109.476 S1 C5 H11 109.476
O2 S1 O3 120.233 O2 S1 C4 107.963
O2 S1 C5 107.963 O3 S1 C4 107.963
O3 S1 C5 107.963 C4 S1 C5 103.516
H6 C4 H8 110.094 H6 C4 H9 110.094
H7 C5 H10 110.094 H7 C5 H11 110.094
H8 C4 H9 111.651 H10 C5 H11 111.651
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability