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

using model chemistry: CCD/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 CCD/3-21G*
 hartrees
Energy at 0K-623.880476
Energy at 298.15K 
HF Energy-623.300970
Nuclear repulsion energy273.205516
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 CCD/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 3146 3009 1.93      
2 A1 3064 2931 1.30      
3 A1 1547 1480 3.92      
4 A1 1466 1402 20.85      
5 A1 1208 1155 177.27      
6 A1 1075 1028 0.05      
7 A1 715 683 17.59      
8 A1 517 494 27.63      
9 A1 303 290 2.15      
10 A2 3150 3013 0.00      
11 A2 1532 1466 0.00      
12 A2 1007 963 0.00      
13 A2 296 283 0.00      
14 A2 201 193 0.00      
15 B1 3155 3018 5.53      
16 B1 1548 1480 14.41      
17 B1 1428 1366 205.94      
18 B1 1069 1022 2.27      
19 B1 376 360 1.84      
20 B1 230 220 0.56      
21 B2 3144 3008 0.03      
22 B2 3062 2929 0.02      
23 B2 1538 1471 9.53      
24 B2 1452 1389 29.29      
25 B2 1016 972 67.99      
26 B2 785 750 73.15      
27 B2 457 438 38.70      

Unscaled Zero Point Vibrational Energy (zpe) 19242.5 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 18405.4 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 CCD/3-21G*
ABC
0.14921 0.14240 0.13753

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.199
O2 -1.264 0.000 0.924
O3 1.264 0.000 0.924
C4 0.000 1.382 -0.926
C5 0.000 -1.382 -0.926
H6 0.000 2.297 -0.321
H7 0.000 -2.297 -0.321
H8 0.900 1.363 -1.551
H9 -0.900 1.363 -1.551
H10 -0.900 -1.363 -1.551
H11 0.900 -1.363 -1.551

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.45761.45761.78221.78222.35552.35552.39332.39332.39332.3933
O21.45762.52842.63312.63312.90302.90303.55912.84862.84863.5591
O31.45762.52842.63312.63312.90302.90302.84863.55913.55912.8486
C41.78222.63312.63312.76471.09703.72921.09581.09582.95572.9557
C51.78222.63312.63312.76473.72921.09702.95572.95571.09581.0958
H62.35552.90302.90301.09703.72924.59491.78771.78773.96483.9648
H72.35552.90302.90303.72921.09704.59493.96483.96481.78771.7877
H82.39333.55912.84861.09582.95571.78773.96481.80073.26672.7256
H92.39332.84863.55911.09582.95571.78773.96481.80072.72563.2667
H102.39332.84863.55912.95571.09583.96481.78773.26672.72561.8007
H112.39333.55912.84862.95571.09583.96481.78772.72563.26671.8007

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 107.389 S1 C4 H8 110.230
S1 C4 H9 110.230 S1 C5 H7 107.389
S1 C5 H10 110.230 S1 C5 H11 110.230
O2 S1 O3 120.293 O2 S1 C4 108.312
O2 S1 C5 108.312 O3 S1 C4 108.312
O3 S1 C5 108.312 C4 S1 C5 101.725
H6 C4 H8 109.219 H6 C4 H9 109.219
H7 C5 H10 109.219 H7 C5 H11 109.219
H8 C4 H9 110.490 H10 C5 H11 110.490
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability