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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G4
 hartrees
Energy at 0K-628.209232
Energy at 298.15K-628.201995
HF Energy-628.451335
Nuclear repulsion energy273.444074
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 B3LYP/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 3165 3054 1.38      
2 A1 3063 2955 1.44      
3 A1 1459 1408 1.24      
4 A1 1345 1298 16.35      
5 A1 1165 1124 142.34      
6 A1 1002 967 1.87      
7 A1 664 641 11.43      
8 A1 482 465 20.77      
9 A1 268 258 2.54      
10 A2 3166 3055 0.00      
11 A2 1445 1395 0.00      
12 A2 923 890 0.00      
13 A2 285 275 0.00      
14 A2 174 168 0.00      
15 B1 3170 3059 4.10      
16 B1 1463 1412 3.24      
17 B1 1366 1318 201.41      
18 B1 981 947 1.58      
19 B1 349 337 0.14      
20 B1 205 198 0.42      
21 B2 3164 3053 0.26      
22 B2 3060 2953 0.00      
23 B2 1449 1398 5.40      
24 B2 1328 1282 8.01      
25 B2 936 903 68.53      
26 B2 724 699 42.70      
27 B2 447 431 29.03      

Unscaled Zero Point Vibrational Energy (zpe) 18623.3 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 17971.4 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 B3LYP/6-31G(2df,p)
ABC
0.15161 0.14054 0.13654

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.196
O2 -1.257 0.000 0.912
O3 1.257 0.000 0.912
C4 0.000 1.410 -0.920
C5 0.000 -1.410 -0.920
H6 0.000 2.294 -0.280
H7 0.000 -2.294 -0.280
H8 0.902 1.391 -1.534
H9 -0.902 1.391 -1.534
H10 -0.902 -1.391 -1.534
H11 0.902 -1.391 -1.534

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.44701.44701.79811.79812.34282.34282.39602.39602.39602.3960
O21.44702.51422.63182.63182.87472.87473.54702.83652.83653.5470
O31.44702.51422.63182.63182.87472.87472.83653.54703.54702.8365
C41.79812.63182.63182.81961.09173.75881.09101.09103.00603.0060
C51.79812.63182.63182.81963.75881.09173.00603.00601.09101.0910
H62.34282.87472.87471.09173.75884.58801.78911.78913.99593.9959
H72.34282.87472.87473.75881.09174.58803.99593.99591.78911.7891
H82.39603.54702.83651.09103.00601.78913.99591.80373.31612.7826
H92.39602.83653.54701.09103.00601.78913.99591.80372.78263.3161
H102.39602.83653.54703.00601.09103.99591.78913.31612.78261.8037
H112.39603.54702.83653.00601.09103.99591.78912.78263.31611.8037

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 105.720 S1 C4 H8 109.622
S1 C4 H9 109.622 S1 C5 H7 105.720
S1 C5 H10 109.622 S1 C5 H11 109.622
O2 S1 O3 120.636 O2 S1 C4 107.900
O2 S1 C5 107.900 O3 S1 C4 107.900
O3 S1 C5 107.900 C4 S1 C5 103.267
H6 C4 H8 110.099 H6 C4 H9 110.099
H7 C5 H10 110.099 H7 C5 H11 110.099
H8 C4 H9 111.513 H10 C5 H11 111.513
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.491      
2 O -0.293      
3 O -0.293      
4 C -0.449      
5 C -0.449      
6 H 0.180      
7 H 0.180      
8 H 0.158      
9 H 0.158      
10 H 0.158      
11 H 0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -4.296 4.296
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 127.383
(<r2>)1/2 11.286