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

using model chemistry: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-623.594900
Energy at 298.15K 
HF Energy-623.027412
Nuclear repulsion energy255.227114
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 MP4/3-21G
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 3184 3088        
2 A1 3069 2976        
3 A1 1518 1472        
4 A1 1389 1347        
5 A1 1053 1021        
6 A1 932 904        
7 A1 535 519        
8 A1 407 395        
9 A1 243 236        
10 A2 3180 3083        
11 A2 1518 1472        
12 A2 935 906        
13 A2 204 198        
14 A2 132 128        
15 B1 3183 3087        
16 B1 1532 1486        
17 B1 1161 1126        
18 B1 970 940        
19 B1 282 273        
20 B1 160 156        
21 B2 3183 3087        
22 B2 3066 2974        
23 B2 1509 1463        
24 B2 1365 1324        
25 B2 952 923        
26 B2 605 587        
27 B2 321 311        

Unscaled Zero Point Vibrational Energy (zpe) 18292.3 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 17739.9 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 MP4/3-21G
ABC
0.12600 0.12589 0.12081

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.213
O2 -1.378 0.000 1.013
O3 1.378 0.000 1.013
C4 0.000 1.455 -1.023
C5 0.000 -1.455 -1.023
H6 0.000 2.370 -0.423
H7 0.000 -2.370 -0.423
H8 0.910 1.372 -1.624
H9 -0.910 1.372 -1.624
H10 -0.910 -1.372 -1.624
H11 0.910 -1.372 -1.624

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.59331.59331.90891.90892.45412.45412.46752.46752.46752.4675
O21.59332.75592.85662.85663.09513.09513.75183.00973.00973.7518
O31.59332.75592.85662.85663.09513.09513.00973.75183.75183.0097
C41.90892.85662.85662.90971.09403.87161.09431.09433.03063.0306
C51.90892.85662.85662.90973.87161.09403.03063.03061.09431.0943
H62.45413.09513.09511.09403.87164.74011.80721.80724.03454.0345
H72.45413.09513.09513.87161.09404.74014.03454.03451.80721.8072
H82.46753.75183.00971.09433.03061.80724.03451.82073.29382.7449
H92.46753.00973.75181.09433.03061.80724.03451.82072.74493.2938
H102.46753.00973.75183.03061.09434.03451.80723.29382.74491.8207
H112.46753.75183.00973.03061.09434.03451.80722.74493.29381.8207

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 106.434 S1 C4 H8 107.369
S1 C4 H9 107.369 S1 C5 H7 106.434
S1 C5 H10 107.369 S1 C5 H11 107.369
O2 S1 O3 119.726 O2 S1 C4 108.969
O2 S1 C5 108.969 O3 S1 C4 108.969
O3 S1 C5 108.969 C4 S1 C5 99.305
H6 C4 H8 111.357 H6 C4 H9 111.357
H7 C5 H10 111.357 H7 C5 H11 111.357
H8 C4 H9 112.595 H10 C5 H11 112.595
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability