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

using model chemistry: MP2/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-627.297501
Energy at 298.15K 
HF Energy-626.433004
Nuclear repulsion energy269.207494
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/aug-cc-pVDZ
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 3209 3077 0.17      
2 A1 3081 2955 2.36      
3 A1 1443 1384 3.14      
4 A1 1322 1267 14.37      
5 A1 1106 1061 147.70      
6 A1 997 956 0.20      
7 A1 681 653 7.46      
8 A1 450 431 23.48      
9 A1 262 251 2.30      
10 A2 3211 3079 0.00      
11 A2 1432 1373 0.00      
12 A2 919 881 0.00      
13 A2 283 271 0.00      
14 A2 170 163 0.00      
15 B1 3214 3082 0.58      
16 B1 1450 1391 8.18      
17 B1 1268 1216 251.68      
18 B1 972 932 0.19      
19 B1 341 327 0.58      
20 B1 204 196 0.30      
21 B2 3207 3076 0.96      
22 B2 3079 2953 0.06      
23 B2 1434 1375 5.81      
24 B2 1304 1251 10.22      
25 B2 934 896 49.04      
26 B2 742 711 31.69      
27 B2 435 417 36.48      

Unscaled Zero Point Vibrational Energy (zpe) 18574.1 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 17812.5 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 MP2/aug-cc-pVDZ
ABC
0.14572 0.13631 0.13526

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.187
O2 -1.299 0.000 0.926
O3 1.299 0.000 0.926
C4 0.000 1.414 -0.926
C5 0.000 -1.414 -0.926
H6 0.000 2.297 -0.272
H7 0.000 -2.297 -0.272
H8 0.913 1.382 -1.536
H9 -0.913 1.382 -1.536
H10 -0.913 -1.382 -1.536
H11 0.913 -1.382 -1.536

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.49471.49471.79951.79952.34232.34232.38992.38992.38992.3899
O21.49472.59862.66782.66782.89792.89793.58672.84962.84963.5867
O31.49472.59862.66782.66782.89792.89792.84963.58673.58672.8496
C41.79952.66782.66782.82781.09903.76811.09851.09853.00353.0035
C51.79952.66782.66782.82783.76811.09903.00353.00351.09851.0985
H62.34232.89792.89791.09903.76814.59381.80831.80833.99553.9955
H72.34232.89792.89793.76811.09904.59383.99553.99551.80831.8083
H82.38993.58672.84961.09853.00351.80833.99551.82583.31202.7632
H92.38992.84963.58671.09853.00351.80833.99551.82582.76323.3120
H102.38992.84963.58673.00351.09853.99551.80833.31202.76321.8258
H112.38993.58672.84963.00351.09853.99551.80832.76323.31201.8258

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 105.246 S1 C4 H8 108.691
S1 C4 H9 108.691 S1 C5 H7 105.246
S1 C5 H10 108.691 S1 C5 H11 108.691
O2 S1 O3 120.752 O2 S1 C4 107.804
O2 S1 C5 107.804 O3 S1 C4 107.804
O3 S1 C5 107.804 C4 S1 C5 103.576
H6 C4 H8 110.752 H6 C4 H9 110.752
H7 C5 H10 110.752 H7 C5 H11 110.752
H8 C4 H9 112.415 H10 C5 H11 112.415
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability