return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: mPW1PW91/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/Def2TZVPP
 hartrees
Energy at 0K-628.525463
Energy at 298.15K 
HF Energy-628.525463
Nuclear repulsion energy276.118673
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 mPW1PW91/Def2TZVPP
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 3184 3184 0.57      
2 A1 3082 3082 1.28      
3 A1 1459 1459 2.94      
4 A1 1351 1351 29.25      
5 A1 1196 1196 158.26      
6 A1 1010 1010 3.48      
7 A1 697 697 11.13      
8 A1 499 499 24.52      
9 A1 272 272 2.83      
10 A2 3190 3190 0.00      
11 A2 1446 1446 0.00      
12 A2 931 931 0.00      
13 A2 300 300 0.00      
14 A2 186 186 0.00      
15 B1 3194 3194 1.51      
16 B1 1465 1465 1.30      
17 B1 1392 1392 255.04      
18 B1 991 991 1.81      
19 B1 362 362 0.21      
20 B1 219 219 0.50      
21 B2 3183 3183 0.82      
22 B2 3079 3079 0.31      
23 B2 1448 1448 5.67      
24 B2 1335 1335 20.13      
25 B2 942 942 83.23      
26 B2 754 754 37.91      
27 B2 464 464 34.33      

Unscaled Zero Point Vibrational Energy (zpe) 18815.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18815.3 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 mPW1PW91/Def2TZVPP
ABC
0.15507 0.14322 0.13959

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.187
O2 -1.245 0.000 0.904
O3 1.245 0.000 0.904
C4 0.000 1.396 -0.906
C5 0.000 -1.396 -0.906
H6 0.000 2.272 -0.260
H7 0.000 -2.272 -0.260
H8 0.899 1.384 -1.516
H9 -0.899 1.384 -1.516
H10 -0.899 -1.384 -1.516
H11 0.899 -1.384 -1.516

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.43621.43621.77291.77292.31532.31532.37152.37152.37152.3715
O21.43622.48952.60232.60232.83982.83983.51662.80862.80863.5166
O31.43622.48952.60232.60232.83982.83982.80863.51663.51662.8086
C41.77292.60232.60232.79171.08823.72401.08691.08692.98442.9844
C51.77292.60232.60232.79173.72401.08822.98442.98441.08691.0869
H62.31532.83982.83981.08823.72404.54351.78191.78193.96843.9684
H72.31532.83982.83983.72401.08824.54353.96843.96841.78191.7819
H82.37153.51662.80861.08692.98441.78193.96841.79883.30052.7672
H92.37152.80863.51661.08692.98441.78193.96841.79882.76723.3005
H102.37152.80863.51662.98441.08693.96841.78193.30052.76721.7988
H112.37153.51662.80862.98441.08693.96841.78192.76723.30051.7988

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 105.538 S1 C4 H8 109.710
S1 C4 H9 109.710 S1 C5 H7 105.538
S1 C5 H10 109.710 S1 C5 H11 109.710
O2 S1 O3 120.152 O2 S1 C4 107.912
O2 S1 C5 107.912 O3 S1 C4 107.912
O3 S1 C5 107.912 C4 S1 C5 103.877
H6 C4 H8 110.013 H6 C4 H9 110.013
H7 C5 H10 110.013 H7 C5 H11 110.013
H8 C4 H9 111.676 H10 C5 H11 111.676
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.746      
2 O -0.460      
3 O -0.460      
4 C -0.278      
5 C -0.278      
6 H 0.128      
7 H 0.128      
8 H 0.119      
9 H 0.119      
10 H 0.119      
11 H 0.119      


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 -4.473 4.473
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.601 0.000 0.000
y 0.000 -31.474 0.000
z 0.000 0.000 -37.950
Traceless
 xyz
x -7.889 0.000 0.000
y 0.000 8.801 0.000
z 0.000 0.000 -0.913
Polar
3z2-r2-1.826
x2-y2-11.127
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.020 0.000 0.000
y 0.000 7.701 0.000
z 0.000 0.000 7.100


<r2> (average value of r2) Å2
<r2> 125.508
(<r2>)1/2 11.203