return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/cc-pV(T+d)Z
 hartrees
Energy at 0K-628.308137
Energy at 298.15K 
HF Energy-627.925634
Nuclear repulsion energy275.345935
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 B2PLYP=FULLultrafine/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 3178 3178 0.99      
2 A1 3084 3084 1.75      
3 A1 1477 1477 3.11      
4 A1 1362 1362 20.91      
5 A1 1181 1181 149.13      
6 A1 1015 1015 1.41      
7 A1 687 687 12.10      
8 A1 494 494 23.86      
9 A1 273 273 2.34      
10 A2 3183 3183 0.00      
11 A2 1464 1464 0.00      
12 A2 940 940 0.00      
13 A2 300 300 0.00      
14 A2 184 184 0.00      
15 B1 3187 3187 2.51      
16 B1 1481 1481 4.57      
17 B1 1377 1377 220.11      
18 B1 999 999 0.86      
19 B1 362 362 0.48      
20 B1 217 217 0.45      
21 B2 3177 3177 0.47      
22 B2 3081 3081 0.03      
23 B2 1467 1467 5.62      
24 B2 1347 1347 16.05      
25 B2 949 949 72.67      
26 B2 749 749 43.40      
27 B2 460 460 34.29      

Unscaled Zero Point Vibrational Energy (zpe) 18836.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18836.5 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 B2PLYP=FULLultrafine/cc-pV(T+d)Z
ABC
0.15371 0.14254 0.13897

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/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 -1.251 0.000 0.906
O3 1.251 0.000 0.906
C4 0.000 1.397 -0.911
C5 0.000 -1.397 -0.911
H6 0.000 2.275 -0.272
H7 0.000 -2.275 -0.272
H8 0.898 1.379 -1.520
H9 -0.898 1.379 -1.520
H10 -0.898 -1.379 -1.520
H11 0.898 -1.379 -1.520

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.44111.44111.77931.77932.32142.32142.37372.37372.37372.3737
O21.44112.50212.61142.61142.85092.85093.52212.81292.81293.5221
O31.44112.50212.61142.61142.85092.85092.81293.52213.52212.8129
C41.77932.61142.61142.79441.08593.72731.08491.08492.98082.9808
C51.77932.61142.61142.79443.72731.08592.98082.98081.08491.0849
H62.32142.85092.85091.08593.72734.54981.77941.77943.96443.9644
H72.32142.85092.85093.72731.08594.54983.96443.96441.77941.7794
H82.37373.52212.81291.08492.98081.77943.96441.79563.29142.7584
H92.37372.81293.52211.08492.98081.77943.96441.79562.75843.2914
H102.37372.81293.52212.98081.08493.96441.77943.29142.75841.7956
H112.37373.52212.81292.98081.08493.96441.77942.75843.29141.7956

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 105.670 S1 C4 H8 109.541
S1 C4 H9 109.541 S1 C5 H7 105.670
S1 C5 H10 109.541 S1 C5 H11 109.541
O2 S1 O3 120.475 O2 S1 C4 107.902
O2 S1 C5 107.902 O3 S1 C4 107.902
O3 S1 C5 107.902 C4 S1 C5 103.482
H6 C4 H8 110.107 H6 C4 H9 110.107
H7 C5 H10 110.107 H7 C5 H11 110.107
H8 C4 H9 111.695 H10 C5 H11 111.695
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability