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

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-627.279805
Energy at 298.15K-627.287877
HF Energy-626.460381
Nuclear repulsion energy273.494584
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 MP2/6-311G*
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 3216 3056 0.21      
2 A1 3104 2950 1.73      
3 A1 1499 1425 6.08      
4 A1 1413 1342 24.66      
5 A1 1174 1116 191.36      
6 A1 1047 995 0.57      
7 A1 710 674 12.50      
8 A1 487 463 29.11      
9 A1 281 267 2.22      
10 A2 3224 3064 0.00      
11 A2 1483 1410 0.00      
12 A2 968 920 0.00      
13 A2 301 286 0.00      
14 A2 185 176 0.00      
15 B1 3228 3068 1.25      
16 B1 1501 1427 16.54      
17 B1 1371 1303 245.58      
18 B1 1032 981 1.87      
19 B1 370 352 1.17      
20 B1 223 212 0.65      
21 B2 3215 3055 0.75      
22 B2 3102 2948 0.02      
23 B2 1489 1415 7.94      
24 B2 1395 1325 30.60      
25 B2 986 937 68.19      
26 B2 775 736 48.72      
27 B2 464 441 40.54      

Unscaled Zero Point Vibrational Energy (zpe) 19121.0 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 18170.7 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 MP2/6-311G*
ABC
0.15127 0.14033 0.13823

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.059
O2 -1.354 0.000 0.967
O3 1.354 0.000 0.967
C4 0.000 1.287 -0.845
C5 0.000 -1.287 -0.845
H6 0.000 2.130 -0.237
H7 0.000 -2.130 -0.237
H8 0.853 1.295 -1.451
H9 -0.853 1.295 -1.451
H10 -0.853 -1.295 -1.451
H11 0.853 -1.295 -1.451

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.63051.63051.57241.57242.14992.14992.16432.16432.16432.1643
O21.63052.70812.60242.60242.79602.79603.52082.78822.78823.5208
O31.63052.70812.60242.60242.79602.79602.78823.52083.52082.7882
C41.57242.60242.60242.57361.03923.47001.04661.04662.78602.7860
C51.57242.60242.60242.57363.47001.03922.78602.78601.04661.0466
H62.14992.79602.79601.03923.47004.25901.70241.70243.73243.7324
H72.14992.79602.79603.47001.03924.25903.73243.73241.70241.7024
H82.16433.52082.78821.04662.78601.70243.73241.70673.10202.5903
H92.16432.78823.52081.04662.78601.70243.73241.70672.59033.1020
H102.16432.78823.52082.78601.04663.73241.70243.10202.59031.7067
H112.16433.52082.78822.78601.04663.73241.70242.59033.10201.7067

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 109.108 S1 C4 H8 109.830
S1 C4 H9 109.830 S1 C5 H7 109.108
S1 C5 H10 109.830 S1 C5 H11 109.830
O2 S1 O3 112.291 O2 S1 C4 108.671
O2 S1 C5 108.671 O3 S1 C4 108.671
O3 S1 C5 108.671 C4 S1 C5 109.849
H6 C4 H8 109.410 H6 C4 H9 109.410
H7 C5 H10 109.410 H7 C5 H11 109.410
H8 C4 H9 109.240 H10 C5 H11 109.240
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability