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

using model chemistry: QCISD/6-31G

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/6-31G
 hartrees
Energy at 0K-626.676098
Energy at 298.15K 
HF Energy-626.115179
Nuclear repulsion energy250.498059
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/6-31G
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 3195 3078 0.00      
2 A1 3068 2956 3.31      
3 A1 1499 1445 5.53      
4 A1 1402 1351 1.35      
5 A1 1079 1040 31.90      
6 A1 766 739 29.82      
7 A1 564 544 4.44      
8 A1 340 328 23.04      
9 A1 216 209 3.80      
10 A2 3189 3073 0.00      
11 A2 1500 1445 0.00      
12 A2 989 953 0.00      
13 A2 205 198 0.00      
14 A2 141 136 0.00      
15 B1 3191 3075 0.77      
16 B1 1510 1455 27.08      
17 B1 1079 1039 30.65      
18 B1 871 839 14.85      
19 B1 267 257 1.44      
20 B1 162 156 0.56      
21 B2 3194 3077 0.75      
22 B2 3067 2955 0.29      
23 B2 1491 1437 12.10      
24 B2 1378 1328 0.02      
25 B2 992 956 10.07      
26 B2 658 634 27.73      
27 B2 298 287 38.98      

Unscaled Zero Point Vibrational Energy (zpe) 18155.6 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 17494.7 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/6-31G
ABC
0.12308 0.12123 0.11628

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.177
O2 -1.459 0.000 0.994
O3 1.459 0.000 0.994
C4 0.000 1.496 -0.980
C5 0.000 -1.496 -0.980
H6 0.000 2.373 -0.324
H7 0.000 -2.373 -0.324
H8 0.913 1.447 -1.584
H9 -0.913 1.447 -1.584
H10 -0.913 -1.447 -1.584
H11 0.913 -1.447 -1.584

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.67211.67211.89191.89192.42562.42562.45552.45552.45552.4555
O21.67212.91762.87522.87523.08193.08193.79053.00633.00633.7905
O31.67212.91762.87522.87523.08193.08193.00633.79053.79053.0063
C41.89192.87522.87522.99271.09563.92501.09581.09583.14043.1404
C51.89192.87522.87522.99273.92501.09563.14043.14041.09581.0958
H62.42563.08193.08191.09563.92504.74671.81101.81104.12524.1252
H72.42563.08193.08193.92501.09564.74674.12524.12521.81101.8110
H82.45553.79053.00631.09583.14041.81104.12521.82693.42252.8941
H92.45553.00633.79051.09583.14041.81104.12521.82692.89413.4225
H102.45553.00633.79053.14041.09584.12521.81103.42252.89411.8269
H112.45553.79053.00633.14041.09584.12521.81102.89413.42251.8269

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 105.450 S1 C4 H8 107.537
S1 C4 H9 107.537 S1 C5 H7 105.450
S1 C5 H10 107.537 S1 C5 H11 107.537
O2 S1 O3 121.490 O2 S1 C4 107.400
O2 S1 C5 107.400 O3 S1 C4 107.400
O3 S1 C5 107.400 C4 S1 C5 104.544
H6 C4 H8 111.466 H6 C4 H9 111.466
H7 C5 H10 111.466 H7 C5 H11 111.466
H8 C4 H9 112.939 H10 C5 H11 112.939
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability