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

using model chemistry: MP4/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4/aug-cc-pVDZ
 hartrees
Energy at 0K-627.373699
Energy at 298.15K 
HF Energy-626.430406
Nuclear repulsion energy267.472791
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 MP4/6-31G*
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 3192 3118        
2 A1 3085 3014        
3 A1 1503 1469        
4 A1 1410 1377        
5 A1 1148 1121        
6 A1 1036 1012        
7 A1 693 677        
8 A1 477 466        
9 A1 272 266        
10 A2 3193 3119        
11 A2 1491 1457        
12 A2 975 953        
13 A2 286 279        
14 A2 195 190        
15 B1 3196 3122        
16 B1 1507 1472        
17 B1 1335 1304        
18 B1 1029 1006        
19 B1 360 351        
20 B1 226 221        
21 B2 3191 3117        
22 B2 3083 3012        
23 B2 1495 1460        
24 B2 1392 1360        
25 B2 988 965        
26 B2 772 755        
27 B2 442 432        

Unscaled Zero Point Vibrational Energy (zpe) 18984.4 cm-1
Scaled (by 0.9769) Zero Point Vibrational Energy (zpe) 18545.9 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 MP4/aug-cc-pVDZ
ABC
0.14362 0.13464 0.13345

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.190
O2 -1.308 0.000 0.932
O3 1.308 0.000 0.932
C4 0.000 1.423 -0.934
C5 0.000 -1.423 -0.934
H6 0.000 2.310 -0.281
H7 0.000 -2.310 -0.281
H8 0.916 1.386 -1.547
H9 -0.916 1.386 -1.547
H10 -0.916 -1.386 -1.547
H11 0.916 -1.386 -1.547

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.50411.50411.81331.81332.35792.35792.40382.40382.40382.4038
O21.50412.61652.68702.68702.91912.91913.60762.86772.86773.6076
O31.50412.61652.68702.68702.91912.91912.86773.60763.60762.8677
C41.81332.68702.68702.84511.10223.78961.10221.10223.01733.0173
C51.81332.68702.68702.84513.78961.10223.01733.01731.10221.1022
H62.35792.91912.91911.10223.78964.62061.81511.81514.01344.0134
H72.35792.91912.91913.78961.10224.62064.01344.01341.81511.8151
H82.40383.60762.86771.10223.01731.81514.01341.83113.32302.7730
H92.40382.86773.60761.10223.01731.81514.01341.83112.77303.3230
H102.40382.86773.60763.01731.10224.01341.81513.32302.77301.8311
H112.40383.60762.86773.01731.10224.01341.81512.77303.32301.8311

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 105.326 S1 C4 H8 108.604
S1 C4 H9 108.604 S1 C5 H7 105.326
S1 C5 H10 108.604 S1 C5 H11 108.604
O2 S1 O3 120.863 O2 S1 C4 107.818
O2 S1 C5 107.818 O3 S1 C4 107.818
O3 S1 C5 107.818 C4 S1 C5 103.352
H6 C4 H8 110.844 H6 C4 H9 110.844
H7 C5 H10 110.844 H7 C5 H11 110.844
H8 C4 H9 112.327 H10 C5 H11 112.327
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability