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

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-623.861782
Energy at 298.15K 
HF Energy-623.300240
Nuclear repulsion energy272.535408
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 MP2/3-21G*
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 3187 3032 1.41      
2 A1 3100 2949 1.13      
3 A1 1566 1489 3.84      
4 A1 1472 1400 19.07      
5 A1 1203 1145 162.61      
6 A1 1077 1024 0.04      
7 A1 706 671 19.65      
8 A1 507 483 23.29      
9 A1 303 289 2.04      
10 A2 3195 3039 0.00      
11 A2 1549 1473 0.00      
12 A2 1009 960 0.00      
13 A2 291 277 0.00      
14 A2 208 198 0.00      
15 B1 3199 3044 4.39      
16 B1 1564 1488 16.26      
17 B1 1424 1354 182.17      
18 B1 1069 1017 2.71      
19 B1 373 355 1.72      
20 B1 237 225 0.53      
21 B2 3186 3030 0.00      
22 B2 3098 2947 0.02      
23 B2 1557 1481 10.44      
24 B2 1458 1387 28.99      
25 B2 1016 966 62.07      
26 B2 777 739 78.74      
27 B2 449 428 31.94      

Unscaled Zero Point Vibrational Energy (zpe) 19388.5 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 18444.3 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 MP2/3-21G*
ABC
0.14793 0.14182 0.13735

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.200
O2 -1.272 0.000 0.926
O3 1.272 0.000 0.926
C4 0.000 1.381 -0.930
C5 0.000 -1.381 -0.930
H6 0.000 2.294 -0.326
H7 0.000 -2.294 -0.326
H8 0.898 1.361 -1.552
H9 -0.898 1.361 -1.552
H10 -0.898 -1.361 -1.552
H11 0.898 -1.361 -1.552

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.46501.46501.78411.78412.35332.35332.39372.39372.39372.3937
O21.46502.54472.64022.64022.90662.90663.56472.85232.85233.5647
O31.46502.54472.64022.64022.90662.90662.85233.56473.56472.8523
C41.78412.64022.64022.76131.09463.72371.09291.09292.95152.9515
C51.78412.64022.64022.76133.72371.09462.95152.95151.09291.0929
H62.35332.90662.90661.09463.72374.58741.78321.78323.95823.9582
H72.35332.90662.90663.72371.09464.58743.95823.95821.78321.7832
H82.39373.56472.85231.09292.95151.78323.95821.79633.26142.7222
H92.39372.85233.56471.09292.95151.78323.95821.79632.72223.2614
H102.39372.85233.56472.95151.09293.95821.78323.26142.72221.7963
H112.39373.56472.85232.95151.09293.95821.78322.72223.26141.7963

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 107.229 S1 C4 H8 110.292
S1 C4 H9 110.292 S1 C5 H7 107.229
S1 C5 H10 110.292 S1 C5 H11 110.292
O2 S1 O3 120.565 O2 S1 C4 108.298
O2 S1 C5 108.298 O3 S1 C4 108.298
O3 S1 C5 108.298 C4 S1 C5 101.407
H6 C4 H8 109.212 H6 C4 H9 109.212
H7 C5 H10 109.212 H7 C5 H11 109.212
H8 C4 H9 110.533 H10 C5 H11 110.533
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability