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

using model chemistry: B2PLYP=FULLultrafine/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-628.139128
Energy at 298.15K 
HF Energy-627.807368
Nuclear repulsion energy274.428447
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/6-31G(2df,p)
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 3202 3202 0.62      
2 A1 3095 3095 1.09      
3 A1 1478 1478 1.43      
4 A1 1364 1364 17.70      
5 A1 1175 1175 137.82      
6 A1 1013 1013 1.73      
7 A1 688 688 10.23      
8 A1 487 487 22.05      
9 A1 272 272 2.45      
10 A2 3204 3204 0.00      
11 A2 1465 1465 0.00      
12 A2 936 936 0.00      
13 A2 290 290 0.00      
14 A2 175 175 0.00      
15 B1 3208 3208 2.37      
16 B1 1483 1483 4.14      
17 B1 1377 1377 195.88      
18 B1 994 994 1.77      
19 B1 354 354 0.21      
20 B1 206 206 0.41      
21 B2 3201 3201 0.56      
22 B2 3093 3093 0.07      
23 B2 1468 1468 5.59      
24 B2 1348 1348 11.06      
25 B2 948 948 70.16      
26 B2 748 748 37.97      
27 B2 452 452 30.78      

Unscaled Zero Point Vibrational Energy (zpe) 18861.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18861.4 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/6-31G(2df,p)
ABC
0.15226 0.14188 0.13816

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.195
O2 -1.256 0.000 0.910
O3 1.256 0.000 0.910
C4 0.000 1.398 -0.916
C5 0.000 -1.398 -0.916
H6 0.000 2.283 -0.281
H7 0.000 -2.283 -0.281
H8 0.900 1.378 -1.529
H9 -0.900 1.378 -1.529
H10 -0.900 -1.378 -1.529
H11 0.900 -1.378 -1.529

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.44571.44571.78561.78562.33192.33192.38262.38262.38262.3826
O21.44572.51282.62062.62062.86512.86513.53452.82332.82333.5345
O31.44572.51282.62062.62062.86512.86512.82333.53453.53452.8233
C41.78562.62062.62062.79601.08923.73521.08841.08842.98142.9814
C51.78562.62062.62062.79603.73521.08922.98142.98141.08841.0884
H62.33192.86512.86511.08923.73524.56581.78451.78453.97053.9705
H72.33192.86512.86513.73521.08924.56583.97053.97051.78451.7845
H82.38263.53452.82331.08842.98141.78453.97051.79943.29092.7554
H92.38262.82333.53451.08842.98141.78453.97051.79942.75543.2909
H102.38262.82333.53452.98141.08843.97051.78453.29092.75541.7994
H112.38263.53452.82332.98141.08843.97051.78452.75543.29091.7994

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 105.862 S1 C4 H8 109.594
S1 C4 H9 109.594 S1 C5 H7 105.862
S1 C5 H10 109.594 S1 C5 H11 109.594
O2 S1 O3 120.694 O2 S1 C4 107.927
O2 S1 C5 107.927 O3 S1 C4 107.927
O3 S1 C5 107.927 C4 S1 C5 103.055
H6 C4 H8 110.064 H6 C4 H9 110.064
H7 C5 H10 110.064 H7 C5 H11 110.064
H8 C4 H9 111.503 H10 C5 H11 111.503
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability