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

using model chemistry: MP3/cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3/cc-pV(T+d)Z
 hartrees
Energy at 0K-627.602306
Energy at 298.15K 
HF Energy-626.567929
Nuclear repulsion energy277.161426
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 MP3/cc-pV(T+d)Z
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 3207 3207 0.57      
2 A1 3106 3106 0.98      
3 A1 1484 1484 2.82      
4 A1 1381 1381 37.33      
5 A1 1241 1241 162.97      
6 A1 1027 1027 4.01      
7 A1 726 726 12.10      
8 A1 519 519 29.52      
9 A1 277 277 2.25      
10 A2 3215 3215 0.00      
11 A2 1469 1469 0.00      
12 A2 948 948 0.00      
13 A2 308 308 0.00      
14 A2 189 189 0.00      
15 B1 3219 3219 1.68      
16 B1 1490 1490 1.77      
17 B1 1444 1444 268.76      
18 B1 1012 1012 1.42      
19 B1 372 372 0.67      
20 B1 227 227 0.49      
21 B2 3206 3206 0.41      
22 B2 3104 3104 0.30      
23 B2 1474 1474 4.41      
24 B2 1363 1363 19.96      
25 B2 963 963 87.12      
26 B2 778 778 34.19      
27 B2 479 479 41.63      

Unscaled Zero Point Vibrational Energy (zpe) 19113.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19113.7 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 MP3/cc-pV(T+d)Z
ABC
0.15584 0.14469 0.14050

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pV(T+d)Z

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.191
O2 -1.239 0.000 0.901
O3 1.239 0.000 0.901
C4 0.000 1.388 -0.906
C5 0.000 -1.388 -0.906
H6 0.000 2.268 -0.270
H7 0.000 -2.268 -0.270
H8 0.898 1.369 -1.515
H9 -0.898 1.369 -1.515
H10 -0.898 -1.369 -1.515
H11 0.898 -1.369 -1.515

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.42791.42791.76961.76962.31482.31482.36512.36512.36512.3651
O21.42792.47772.59402.59402.83762.83763.50452.79832.79833.5045
O31.42792.47772.59402.59402.83762.83762.79833.50453.50452.7983
C41.76962.59402.59402.77591.08673.71151.08531.08532.96292.9629
C51.76962.59402.59402.77593.71151.08672.96292.96291.08531.0853
H62.31482.83762.83761.08673.71154.53701.77971.77973.94853.9485
H72.31482.83762.83763.71151.08674.53703.94853.94851.77971.7797
H82.36513.50452.79831.08532.96291.77973.94851.79633.27482.7382
H92.36512.79833.50451.08532.96291.77973.94851.79632.73823.2748
H102.36512.79833.50452.96291.08533.94851.77973.27482.73821.7963
H112.36513.50452.79832.96291.08533.94851.77972.73823.27481.7963

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 105.786 S1 C4 H8 109.539
S1 C4 H9 109.539 S1 C5 H7 105.786
S1 C5 H10 109.539 S1 C5 H11 109.539
O2 S1 O3 120.368 O2 S1 C4 107.965
O2 S1 C5 107.965 O3 S1 C4 107.965
O3 S1 C5 107.965 C4 S1 C5 103.319
H6 C4 H8 110.053 H6 C4 H9 110.053
H7 C5 H10 110.053 H7 C5 H11 110.053
H8 C4 H9 111.698 H10 C5 H11 111.698
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability