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

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-627.154207
Energy at 298.15K-627.162283
HF Energy-626.388510
Nuclear repulsion energy272.297538
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*
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 3244 3059 0.07      
2 A1 3132 2953 0.83      
3 A1 1520 1434 3.39      
4 A1 1427 1346 18.45      
5 A1 1180 1113 166.96      
6 A1 1057 997 0.00      
7 A1 716 675 11.50      
8 A1 490 462 26.39      
9 A1 277 262 2.44      
10 A2 3249 3064 0.00      
11 A2 1508 1422 0.00      
12 A2 988 931 0.00      
13 A2 292 276 0.00      
14 A2 198 187 0.00      
15 B1 3253 3067 1.00      
16 B1 1525 1438 13.48      
17 B1 1374 1296 228.40      
18 B1 1046 986 0.99      
19 B1 368 347 1.16      
20 B1 230 217 0.51      
21 B2 3243 3058 1.13      
22 B2 3130 2951 0.47      
23 B2 1511 1425 8.29      
24 B2 1410 1330 20.62      
25 B2 1000 943 66.93      
26 B2 791 746 48.74      
27 B2 456 430 38.22      

Unscaled Zero Point Vibrational Energy (zpe) 19308.0 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 18207.5 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 MP2/6-31G*
ABC
0.14973 0.13909 0.13768

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

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 0.969
O3 1.354 0.000 0.969
C4 0.000 1.286 -0.847
C5 0.000 -1.286 -0.847
H6 0.000 2.130 -0.240
H7 0.000 -2.130 -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
S11.63101.63101.57281.57282.15102.15102.16462.16462.16462.1646
O21.63102.70782.60432.60432.79872.79873.52252.79042.79043.5225
O31.63102.70782.60432.60432.79872.79872.79043.52253.52252.7904
C41.57282.60432.60432.57121.03953.46901.04691.04692.78232.7823
C51.57282.60432.60432.57123.46901.03952.78232.78231.04691.0469
H62.15102.79872.79871.03953.46904.26001.70301.70303.72973.7297
H72.15102.79872.79873.46901.03954.26003.72973.72971.70301.7030
H82.16463.52252.79041.04692.78231.70303.72971.70683.09732.5846
H92.16462.79043.52251.04692.78231.70303.72971.70682.58463.0973
H102.16462.79043.52252.78231.04693.72971.70303.09732.58461.7068
H112.16463.52252.79042.78231.04693.72971.70302.58463.09731.7068

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 109.146 S1 C4 H8 109.810
S1 C4 H9 109.810 S1 C5 H7 109.146
S1 C5 H10 109.810 S1 C5 H11 109.810
O2 S1 O3 112.217 O2 S1 C4 108.738
O2 S1 C5 108.738 O3 S1 C4 108.738
O3 S1 C5 108.738 C4 S1 C5 109.646
H6 C4 H8 109.423 H6 C4 H9 109.423
H7 C5 H10 109.423 H7 C5 H11 109.423
H8 C4 H9 109.216 H10 C5 H11 109.216
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability