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

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-627.410373
Energy at 298.15K 
HF Energy-626.454082
Nuclear repulsion energy275.184753
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 MP2/6-31G(2df,p)
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 3238 3058 0.00      
2 A1 3121 2948 0.34      
3 A1 1481 1399 1.65      
4 A1 1370 1294 25.39      
5 A1 1199 1133 134.82      
6 A1 1018 962 3.67      
7 A1 715 676 10.17      
8 A1 495 467 22.81      
9 A1 275 260 2.35      
10 A2 3247 3066 0.00      
11 A2 1469 1387 0.00      
12 A2 938 886 0.00      
13 A2 292 276 0.00      
14 A2 181 171 0.00      
15 B1 3250 3070 0.18      
16 B1 1489 1406 2.29      
17 B1 1406 1328 206.12      
18 B1 999 944 2.63      
19 B1 358 338 0.31      
20 B1 218 206 0.43      
21 B2 3236 3057 1.60      
22 B2 3119 2946 1.03      
23 B2 1471 1389 5.65      
24 B2 1355 1279 18.41      
25 B2 952 899 77.52      
26 B2 770 727 32.59      
27 B2 458 432 31.68      

Unscaled Zero Point Vibrational Energy (zpe) 19059.5 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 18001.7 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 MP2/6-31G(2df,p)
ABC
0.15274 0.14286 0.13961

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.194
O2 -1.257 0.000 0.906
O3 1.257 0.000 0.906
C4 0.000 1.388 -0.913
C5 0.000 -1.388 -0.913
H6 0.000 2.274 -0.278
H7 0.000 -2.274 -0.278
H8 0.901 1.368 -1.524
H9 -0.901 1.368 -1.524
H10 -0.901 -1.368 -1.524
H11 0.901 -1.368 -1.524

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.44471.44471.77551.77552.32262.32262.37372.37372.37372.3737
O21.44472.51382.61092.61092.85572.85573.52612.81152.81153.5261
O31.44472.51382.61092.61092.85572.85572.81153.52613.52612.8115
C41.77552.61092.61092.77561.09013.71641.08851.08852.96282.9628
C51.77552.61092.61092.77563.71641.09012.96282.96281.08851.0885
H62.32262.85572.85571.09013.71644.54801.78421.78423.95303.9530
H72.32262.85572.85573.71641.09014.54803.95303.95301.78421.7842
H82.37373.52612.81151.08852.96281.78423.95301.80173.27582.7359
H92.37372.81153.52611.08852.96281.78423.95301.80172.73593.2758
H102.37372.81153.52612.96281.08853.95301.78423.27582.73591.8017
H112.37373.52612.81152.96281.08853.95301.78422.73593.27581.8017

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 105.799 S1 C4 H8 109.613
S1 C4 H9 109.613 S1 C5 H7 105.799
S1 C5 H10 109.613 S1 C5 H11 109.613
O2 S1 O3 120.924 O2 S1 C4 107.909
O2 S1 C5 107.909 O3 S1 C4 107.909
O3 S1 C5 107.909 C4 S1 C5 102.822
H6 C4 H8 109.967 H6 C4 H9 109.967
H7 C5 H10 109.967 H7 C5 H11 109.967
H8 C4 H9 111.710 H10 C5 H11 111.710
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability