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

using model chemistry: MP2=FULL/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 MP2=FULL/3-21G
 hartrees
Energy at 0K-623.551469
Energy at 298.15K 
HF Energy-623.030101
Nuclear repulsion energy258.022251
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 MP2=FULL/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 3240 3093 0.08      
2 A1 3126 2985 0.83      
3 A1 1543 1473 4.21      
4 A1 1430 1365 10.53      
5 A1 1087 1038 81.67      
6 A1 970 926 42.40      
7 A1 589 562 28.98      
8 A1 432 412 17.06      
9 A1 256 244 1.32      
10 A2 3241 3095 0.00      
11 A2 1542 1472 0.00      
12 A2 968 924 0.00      
13 A2 212 203 0.00      
14 A2 149 142 0.00      
15 B1 3245 3098 0.14      
16 B1 1557 1486 28.76      
17 B1 1208 1153 115.15      
18 B1 1009 964 0.01      
19 B1 296 283 3.72      
20 B1 180 172 0.53      
21 B2 3239 3092 0.61      
22 B2 3124 2983 0.20      
23 B2 1533 1463 13.61      
24 B2 1406 1343 5.70      
25 B2 985 940 26.51      
26 B2 659 629 82.88      
27 B2 340 325 32.20      

Unscaled Zero Point Vibrational Energy (zpe) 18781.7 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 17932.8 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 MP2=FULL/3-21G
ABC
0.12926 0.12848 0.12385

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.202
O2 -1.363 0.000 1.001
O3 1.363 0.000 1.001
C4 0.000 1.440 -1.003
C5 0.000 -1.440 -1.003
H6 0.000 2.349 -0.401
H7 0.000 -2.349 -0.401
H8 0.906 1.370 -1.604
H9 -0.906 1.370 -1.604
H10 -0.906 -1.370 -1.604
H11 0.906 -1.370 -1.604

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.58001.58001.87781.87782.42542.42542.44142.44142.44142.4414
O21.58002.72632.81922.81923.05663.05663.71662.97882.97883.7166
O31.58002.72632.81922.81923.05663.05662.97883.71663.71662.9788
C41.87782.81922.81922.88011.09013.83661.08971.08973.01273.0127
C51.87782.81922.81922.88013.83661.09013.01273.01271.08971.0897
H62.42543.05663.05661.09013.83664.69821.79661.79664.01204.0120
H72.42543.05663.05663.83661.09014.69824.01204.01201.79661.7966
H82.44143.71662.97881.08973.01271.79664.01201.81183.28402.7390
H92.44142.97883.71661.08973.01271.79664.01201.81182.73903.2840
H102.44142.97883.71663.01271.08974.01201.79663.28402.73901.8118
H112.44143.71662.97883.01271.08974.01201.79662.73903.28401.8118

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 106.578 S1 C4 H8 107.737
S1 C4 H9 107.737 S1 C5 H7 106.578
S1 C5 H10 107.737 S1 C5 H11 107.737
O2 S1 O3 119.258 O2 S1 C4 108.934
O2 S1 C5 108.934 O3 S1 C4 108.934
O3 S1 C5 108.934 C4 S1 C5 100.152
H6 C4 H8 111.017 H6 C4 H9 111.017
H7 C5 H10 111.017 H7 C5 H11 111.017
H8 C4 H9 112.467 H10 C5 H11 112.467
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability