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

using model chemistry: MP2/6-311+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 MP2/6-311+G(3df,2p)
 hartrees
Energy at 0K-627.571468
Energy at 298.15K 
HF Energy-626.554686
Nuclear repulsion energy276.147224
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 MP2/6-311+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 3207 3025 0.06      
2 A1 3094 2919 1.20      
3 A1 1482 1398 3.14      
4 A1 1367 1290 24.34      
5 A1 1194 1127 151.18      
6 A1 1021 963 2.26      
7 A1 720 679 9.46      
8 A1 495 467 23.96      
9 A1 277 261 2.29      
10 A2 3213 3031 0.00      
11 A2 1467 1384 0.00      
12 A2 944 891 0.00      
13 A2 305 288 0.00      
14 A2 200 189 0.00      
15 B1 3217 3035 0.22      
16 B1 1486 1402 3.67      
17 B1 1386 1307 257.36      
18 B1 1003 946 1.38      
19 B1 366 346 0.48      
20 B1 235 222 0.36      
21 B2 3205 3024 1.54      
22 B2 3092 2917 0.47      
23 B2 1471 1388 5.67      
24 B2 1352 1276 20.23      
25 B2 952 898 70.66      
26 B2 776 732 31.87      
27 B2 466 440 33.77      

Unscaled Zero Point Vibrational Energy (zpe) 18995.7 cm-1
Scaled (by 0.9434) Zero Point Vibrational Energy (zpe) 17920.6 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 MP2/6-311+G(3df,2p)
ABC
0.15417 0.14375 0.14059

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.189
O2 -1.251 0.000 0.904
O3 1.251 0.000 0.904
C4 0.000 1.385 -0.907
C5 0.000 -1.385 -0.907
H6 0.000 2.266 -0.268
H7 0.000 -2.266 -0.268
H8 0.900 1.364 -1.516
H9 -0.900 1.364 -1.516
H10 -0.900 -1.364 -1.516
H11 0.900 -1.364 -1.516

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.44121.44121.76661.76662.31132.31132.36172.36172.36172.3617
O21.44122.50272.60112.60112.84132.84133.51352.80032.80033.5135
O31.44122.50272.60112.60112.84132.84132.80033.51353.51352.8003
C41.76662.60112.60112.77091.08773.70661.08641.08642.95672.9567
C51.76662.60112.60112.77093.70661.08772.95672.95671.08641.0864
H62.31132.84132.84131.08773.70664.53131.78281.78283.94263.9426
H72.31132.84132.84133.70661.08774.53133.94263.94261.78281.7828
H82.36173.51352.80031.08642.95671.78283.94261.79913.26862.7289
H92.36172.80033.51351.08642.95671.78283.94261.79912.72893.2686
H102.36172.80033.51352.95671.08643.94261.78283.26862.72891.7991
H112.36173.51352.80032.95671.08643.94261.78282.72893.26861.7991

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 105.672 S1 C4 H8 109.424
S1 C4 H9 109.424 S1 C5 H7 105.672
S1 C5 H10 109.424 S1 C5 H11 109.424
O2 S1 O3 120.512 O2 S1 C4 107.929
O2 S1 C5 107.929 O3 S1 C4 107.929
O3 S1 C5 107.929 C4 S1 C5 103.299
H6 C4 H8 110.172 H6 C4 H9 110.172
H7 C5 H10 110.172 H7 C5 H11 110.172
H8 C4 H9 111.787 H10 C5 H11 111.787
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability