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

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-624.926429
Energy at 298.15K 
HF Energy-624.926429
Nuclear repulsion energy257.240918
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 B3PW91/3-21G
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 3220 3095 0.17      
2 A1 3102 2982 0.55      
3 A1 1498 1440 5.72      
4 A1 1384 1330 12.91      
5 A1 1061 1020 62.73      
6 A1 913 878 28.72      
7 A1 571 549 18.04      
8 A1 402 386 16.18      
9 A1 241 232 2.03      
10 A2 3221 3096 0.00      
11 A2 1499 1440 0.00      
12 A2 945 909 0.00      
13 A2 201 193 0.00      
14 A2 136 131 0.00      
15 B1 3225 3100 0.04      
16 B1 1515 1456 35.32      
17 B1 1156 1111 75.65      
18 B1 969 931 0.05      
19 B1 281 270 1.30      
20 B1 171 164 0.41      
21 B2 3219 3094 0.96      
22 B2 3100 2979 0.47      
23 B2 1486 1428 17.91      
24 B2 1360 1307 8.09      
25 B2 959 922 26.03      
26 B2 639 614 64.73      
27 B2 320 307 27.12      

Unscaled Zero Point Vibrational Energy (zpe) 18395.1 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 17681.3 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 B3PW91/3-21G
ABC
0.12840 0.12750 0.12347

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.201
O2 -1.371 0.000 1.003
O3 1.371 0.000 1.003
C4 0.000 1.443 -1.004
C5 0.000 -1.443 -1.004
H6 0.000 2.349 -0.396
H7 0.000 -2.349 -0.396
H8 0.907 1.376 -1.605
H9 -0.907 1.376 -1.605
H10 -0.907 -1.376 -1.605
H11 0.907 -1.376 -1.605

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.58831.58831.88021.88022.42322.42322.44552.44552.44552.4455
O21.58832.74292.82662.82663.05803.05803.72652.98482.98483.7265
O31.58832.74292.82662.82663.05803.05802.98483.72653.72652.9848
C41.88022.82662.82662.88611.09093.84011.09061.09063.02193.0219
C51.88022.82662.82662.88613.84011.09093.02193.02191.09061.0906
H62.42323.05803.05801.09093.84014.69701.79791.79794.01984.0198
H72.42323.05803.05803.84011.09094.69704.01984.01981.79791.7979
H82.44553.72652.98481.09063.02191.79794.01981.81493.29662.7520
H92.44552.98483.72651.09063.02191.79794.01981.81492.75203.2966
H102.44552.98483.72653.02191.09064.01981.79793.29662.75201.8149
H112.44553.72652.98483.02191.09064.01981.79792.75203.29661.8149

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 106.229 S1 C4 H8 107.831
S1 C4 H9 107.831 S1 C5 H7 106.229
S1 C5 H10 107.831 S1 C5 H11 107.831
O2 S1 O3 119.411 O2 S1 C4 108.867
O2 S1 C5 108.867 O3 S1 C4 108.867
O3 S1 C5 108.867 C4 S1 C5 100.258
H6 C4 H8 111.007 H6 C4 H9 111.007
H7 C5 H10 111.007 H7 C5 H11 111.007
H8 C4 H9 112.624 H10 C5 H11 112.624
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.368      
2 O -0.572      
3 O -0.572      
4 C -0.948      
5 C -0.948      
6 H 0.298      
7 H 0.298      
8 H 0.270      
9 H 0.270      
10 H 0.270      
11 H 0.270      


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 -5.155 5.155
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.263 0.000 0.000
y 0.000 -32.340 0.000
z 0.000 0.000 -39.596
Traceless
 xyz
x -8.295 0.000 0.000
y 0.000 9.590 0.000
z 0.000 0.000 -1.295
Polar
3z2-r2-2.591
x2-y2-11.923
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.531 0.000 0.000
y 0.000 6.906 0.000
z 0.000 0.000 6.667


<r2> (average value of r2) Å2
<r2> 140.618
(<r2>)1/2 11.858