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

using model chemistry: QCISD/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 QCISD/3-21G
 hartrees
Energy at 0K-623.579650
Energy at 298.15K 
HF Energy-623.028725
Nuclear repulsion energy255.046276
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/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 3185 3087 0.03      
2 A1 3076 2982 1.82      
3 A1 1521 1474 3.86      
4 A1 1407 1364 5.50      
5 A1 1066 1033 40.26      
6 A1 853 827 27.16      
7 A1 553 536 16.44      
8 A1 393 381 18.50      
9 A1 245 238 1.85      
10 A2 3184 3086 0.00      
11 A2 1521 1474 0.00      
12 A2 959 929 0.00      
13 A2 202 196 0.00      
14 A2 132 128 0.00      
15 B1 3187 3089 0.89      
16 B1 1535 1487 28.07      
17 B1 1120 1085 44.58      
18 B1 954 924 0.37      
19 B1 276 268 2.81      
20 B1 162 157 0.47      
21 B2 3184 3086 0.12      
22 B2 3074 2979 0.07      
23 B2 1511 1464 12.73      
24 B2 1383 1340 1.51      
25 B2 969 939 15.85      
26 B2 629 609 57.77      
27 B2 308 298 30.09      

Unscaled Zero Point Vibrational Energy (zpe) 18293.0 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 17729.6 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/3-21G
ABC
0.12575 0.12523 0.12204

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.202
O2 -1.391 0.000 1.011
O3 1.391 0.000 1.011
C4 0.000 1.450 -1.011
C5 0.000 -1.450 -1.011
H6 0.000 2.362 -0.407
H7 0.000 -2.362 -0.407
H8 0.909 1.376 -1.614
H9 -0.909 1.376 -1.614
H10 -0.909 -1.376 -1.614
H11 0.909 -1.376 -1.614

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.60941.60941.89051.89052.43882.43882.45322.45322.45322.4532
O21.60942.78292.85062.85063.08593.08593.75173.00263.00263.7517
O31.60942.78292.85062.85063.08593.08593.00263.75173.75173.0026
C41.89052.85062.85062.90031.09333.85921.09331.09333.02963.0296
C51.89052.85062.85062.90033.85921.09333.02963.02961.09331.0933
H62.43883.08593.08591.09333.85924.72311.80381.80384.03174.0317
H72.43883.08593.08593.85921.09334.72314.03174.03171.80381.8038
H82.45323.75173.00261.09333.02961.80384.03171.81793.29872.7525
H92.45323.00263.75171.09333.02961.80384.03171.81792.75253.2987
H102.45323.00263.75173.02961.09334.03171.80383.29872.75251.8179
H112.45323.75173.00263.02961.09334.03171.80382.75253.29871.8179

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 106.562 S1 C4 H8 107.582
S1 C4 H9 107.582 S1 C5 H7 106.562
S1 C5 H10 107.582 S1 C5 H11 107.582
O2 S1 O3 119.670 O2 S1 C4 108.807
O2 S1 C5 108.807 O3 S1 C4 108.807
O3 S1 C5 108.807 C4 S1 C5 100.182
H6 C4 H8 111.162 H6 C4 H9 111.162
H7 C5 H10 111.162 H7 C5 H11 111.162
H8 C4 H9 112.479 H10 C5 H11 112.479
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability