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

using model chemistry: CISD/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 CISD/6-31G*
 hartrees
Energy at 0K-627.053180
Energy at 298.15K 
HF Energy-626.391085
Nuclear repulsion energy274.653543
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/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 3299 3055 0.35      
2 A1 3196 2959 1.19      
3 A1 1554 1438 3.45      
4 A1 1478 1368 20.96      
5 A1 1221 1130 194.25      
6 A1 1091 1010 0.07      
7 A1 750 695 8.63      
8 A1 516 478 35.66      
9 A1 286 265 2.63      
10 A2 3302 3057 0.00      
11 A2 1542 1428 0.00      
12 A2 1022 946 0.00      
13 A2 308 285 0.00      
14 A2 205 189 0.00      
15 B1 3306 3061 2.13      
16 B1 1559 1443 13.17      
17 B1 1415 1310 269.10      
18 B1 1082 1002 0.63      
19 B1 382 354 1.42      
20 B1 234 217 0.53      
21 B2 3298 3054 0.71      
22 B2 3192 2955 0.05      
23 B2 1545 1430 7.17      
24 B2 1461 1352 19.43      
25 B2 1035 958 76.99      
26 B2 827 765 42.02      
27 B2 480 445 51.96      

Unscaled Zero Point Vibrational Energy (zpe) 19793.2 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 18324.5 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 CISD/6-31G*
ABC
0.15314 0.14141 0.13905

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.186
O2 -1.260 0.000 0.906
O3 1.260 0.000 0.906
C4 0.000 1.399 -0.905
C5 0.000 -1.399 -0.905
H6 0.000 2.281 -0.272
H7 0.000 -2.281 -0.272
H8 0.896 1.386 -1.518
H9 -0.896 1.386 -1.518
H10 -0.896 -1.386 -1.518
H11 0.896 -1.386 -1.518

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.45151.45151.77411.77412.32652.32652.37232.37232.37232.3723
O21.45152.52012.61292.61292.85992.85993.52812.81622.81623.5281
O31.45152.52012.61292.61292.85992.85992.81623.52813.52812.8162
C41.77412.61292.61292.79721.08623.73371.08541.08542.98902.9890
C51.77412.61292.61292.79723.73371.08622.98902.98901.08541.0854
H62.32652.85992.85991.08623.73374.56201.77631.77633.97553.9755
H72.32652.85992.85993.73371.08624.56203.97553.97551.77631.7763
H82.37233.52812.81621.08542.98901.77633.97551.79223.30152.7727
H92.37232.81623.52811.08542.98901.77633.97551.79222.77273.3015
H102.37232.81623.52812.98901.08543.97551.77633.30152.77271.7922
H112.37233.52812.81622.98901.08543.97551.77632.77273.30151.7922

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 106.354 S1 C4 H8 109.764
S1 C4 H9 109.764 S1 C5 H7 106.354
S1 C5 H10 109.764 S1 C5 H11 109.764
O2 S1 O3 120.479 O2 S1 C4 107.781
O2 S1 C5 107.781 O3 S1 C4 107.781
O3 S1 C5 107.781 C4 S1 C5 104.064
H6 C4 H8 109.767 H6 C4 H9 109.767
H7 C5 H10 109.767 H7 C5 H11 109.767
H8 C4 H9 111.303 H10 C5 H11 111.303
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability