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: QCISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/6-311G*
 hartrees
Energy at 0K-627.313075
Energy at 298.15K 
HF Energy-626.460289
Nuclear repulsion energy273.265115
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 QCISD/6-311G*
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 3174 3039 1.31      
2 A1 3072 2941 2.43      
3 A1 1491 1427 5.22      
4 A1 1413 1353 20.22      
5 A1 1155 1106 186.79      
6 A1 1042 997 0.43      
7 A1 705 675 9.87      
8 A1 487 467 32.19      
9 A1 279 267 2.31      
10 A2 3179 3043 0.00      
11 A2 1477 1414 0.00      
12 A2 971 929 0.00      
13 A2 301 288 0.00      
14 A2 181 173 0.00      
15 B1 3183 3047 3.76      
16 B1 1494 1430 15.89      
17 B1 1349 1291 234.92      
18 B1 1032 988 0.96      
19 B1 368 352 1.19      
20 B1 218 208 0.63      
21 B2 3172 3037 0.09      
22 B2 3070 2939 0.18      
23 B2 1481 1418 7.31      
24 B2 1394 1335 22.83      
25 B2 988 946 65.13      
26 B2 774 741 45.05      
27 B2 462 442 45.30      

Unscaled Zero Point Vibrational Energy (zpe) 18954.7 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 18147.2 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 QCISD/6-311G*
ABC
0.15137 0.14004 0.13756

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.192
O2 -1.266 0.000 0.909
O3 1.266 0.000 0.909
C4 0.000 1.405 -0.914
C5 0.000 -1.405 -0.914
H6 0.000 2.291 -0.274
H7 0.000 -2.291 -0.274
H8 0.903 1.391 -1.527
H9 -0.903 1.391 -1.527
H10 -0.903 -1.391 -1.527
H11 0.903 -1.391 -1.527

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.45541.45541.78841.78842.33812.33812.38892.38892.38892.3889
O21.45542.53292.62742.62742.87282.87283.54672.82882.82883.5467
O31.45542.53292.62742.62742.87282.87282.82883.54673.54672.8288
C41.78842.62742.62742.81061.09293.75151.09201.09203.00173.0017
C51.78842.62742.62742.81063.75151.09293.00173.00171.09201.0920
H62.33812.87282.87281.09293.75154.58231.78821.78823.99293.9929
H72.33812.87282.87283.75151.09294.58233.99293.99291.78821.7882
H82.38893.54672.82881.09203.00171.78823.99291.80693.31692.7815
H92.38892.82883.54671.09203.00171.78823.99291.80692.78153.3169
H102.38892.82883.54673.00171.09203.99291.78823.31692.78151.8069
H112.38893.54672.82883.00171.09203.99291.78822.78153.31691.8069

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 105.942 S1 C4 H8 109.685
S1 C4 H9 109.685 S1 C5 H7 105.942
S1 C5 H10 109.685 S1 C5 H11 109.685
O2 S1 O3 120.959 O2 S1 C4 107.743
O2 S1 C5 107.743 O3 S1 C4 107.743
O3 S1 C5 107.743 C4 S1 C5 103.587
H6 C4 H8 109.858 H6 C4 H9 109.858
H7 C5 H10 109.858 H7 C5 H11 109.858
H8 C4 H9 111.653 H10 C5 H11 111.653
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability