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

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G*
 hartrees
Energy at 0K-627.182273
Energy at 298.15K-627.190361
HF Energy-626.388806
Nuclear repulsion energy272.602141
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=FULL/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 3245 3057 0.05      
2 A1 3132 2951 0.78      
3 A1 1521 1433 3.41      
4 A1 1428 1345 19.19      
5 A1 1185 1117 167.06      
6 A1 1058 997 0.08      
7 A1 718 676 11.64      
8 A1 491 463 26.48      
9 A1 279 263 2.43      
10 A2 3250 3062 0.00      
11 A2 1508 1421 0.00      
12 A2 987 930 0.00      
13 A2 294 277 0.00      
14 A2 199 188 0.00      
15 B1 3254 3066 0.90      
16 B1 1525 1437 13.24      
17 B1 1381 1301 229.23      
18 B1 1046 986 1.20      
19 B1 369 348 1.15      
20 B1 232 218 0.51      
21 B2 3244 3056 1.19      
22 B2 3130 2949 0.53      
23 B2 1512 1424 8.34      
24 B2 1411 1329 21.65      
25 B2 1000 942 68.08      
26 B2 792 746 48.62      
27 B2 457 430 38.24      

Unscaled Zero Point Vibrational Energy (zpe) 19322.9 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 18206.0 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=FULL/6-31G*
ABC
0.15004 0.13947 0.13801

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.059
O2 -1.353 0.000 0.968
O3 1.353 0.000 0.968
C4 0.000 1.285 -0.846
C5 0.000 -1.285 -0.846
H6 0.000 2.129 -0.240
H7 0.000 -2.129 -0.240
H8 0.853 1.292 -1.453
H9 -0.853 1.292 -1.453
H10 -0.853 -1.292 -1.453
H11 0.853 -1.292 -1.453

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.63021.63021.57211.57212.15032.15032.16392.16392.16392.1639
O21.63022.70642.60312.60312.79752.79753.52112.78922.78923.5211
O31.63022.70642.60312.60312.79752.79752.78923.52113.52112.7892
C41.57212.60312.60312.56991.03943.46761.04671.04672.78102.7810
C51.57212.60312.60312.56993.46761.03942.78102.78101.04671.0467
H62.15032.79752.79751.03943.46764.25861.70281.70283.72833.7283
H72.15032.79752.79753.46761.03944.25863.72833.72831.70281.7028
H82.16393.52112.78921.04672.78101.70283.72831.70663.09602.5832
H92.16392.78923.52111.04672.78101.70283.72831.70662.58323.0960
H102.16392.78923.52112.78101.04673.72831.70283.09602.58321.7066
H112.16393.52112.78922.78101.04673.72831.70282.58323.09601.7066

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 109.142 S1 C4 H8 109.808
S1 C4 H9 109.808 S1 C5 H7 109.142
S1 C5 H10 109.808 S1 C5 H11 109.808
O2 S1 O3 112.218 O2 S1 C4 108.741
O2 S1 C5 108.741 O3 S1 C4 108.741
O3 S1 C5 108.741 C4 S1 C5 109.633
H6 C4 H8 109.425 H6 C4 H9 109.425
H7 C5 H10 109.425 H7 C5 H11 109.425
H8 C4 H9 109.219 H10 C5 H11 109.219
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability