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: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-628.402952
Energy at 298.15K 
HF Energy-628.402952
Nuclear repulsion energy275.201999
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 mPW1PW91/6-31G(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 3197 3052 0.48      
2 A1 3085 2946 1.07      
3 A1 1459 1393 1.65      
4 A1 1349 1288 26.69      
5 A1 1193 1139 140.51      
6 A1 1006 960 4.00      
7 A1 694 663 10.28      
8 A1 492 469 22.31      
9 A1 271 258 2.76      
10 A2 3200 3055 0.00      
11 A2 1445 1379 0.00      
12 A2 923 881 0.00      
13 A2 289 276 0.00      
14 A2 184 175 0.00      
15 B1 3204 3059 1.99      
16 B1 1466 1399 0.79      
17 B1 1398 1335 216.54      
18 B1 984 940 2.52      
19 B1 353 337 0.09      
20 B1 216 207 0.47      
21 B2 3195 3051 0.86      
22 B2 3083 2943 0.12      
23 B2 1448 1383 5.72      
24 B2 1331 1271 15.62      
25 B2 940 897 80.46      
26 B2 749 715 35.10      
27 B2 456 435 30.62      

Unscaled Zero Point Vibrational Energy (zpe) 18803.9 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 17952.0 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 mPW1PW91/6-31G(2df,p)
ABC
0.15372 0.14242 0.13869

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.191
O2 -1.250 0.000 0.906
O3 1.250 0.000 0.906
C4 0.000 1.398 -0.911
C5 0.000 -1.398 -0.911
H6 0.000 2.280 -0.269
H7 0.000 -2.280 -0.269
H8 0.901 1.383 -1.524
H9 -0.901 1.383 -1.524
H10 -0.901 -1.383 -1.524
H11 0.901 -1.383 -1.524

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.43991.43991.78061.78062.32612.32612.38062.38062.38062.3806
O21.43992.49952.61172.61172.85352.85353.52802.81812.81813.5280
O31.43992.49952.61172.61172.85352.85352.81813.52803.52802.8181
C41.78062.61172.61172.79681.09093.73431.08991.08992.98772.9877
C51.78062.61172.61172.79683.73431.09092.98772.98771.08991.0899
H62.32612.85352.85351.09093.73434.56041.78651.78653.97613.9761
H72.32612.85352.85353.73431.09094.56043.97613.97611.78651.7865
H82.38063.52802.81811.08992.98771.78653.97611.80233.30202.7668
H92.38062.81813.52801.08992.98771.78653.97611.80232.76683.3020
H102.38062.81813.52802.98771.08993.97611.78653.30202.76681.8023
H112.38063.52802.81812.98771.08993.97611.78652.76683.30201.8023

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 105.681 S1 C4 H8 109.709
S1 C4 H9 109.709 S1 C5 H7 105.681
S1 C5 H10 109.709 S1 C5 H11 109.709
O2 S1 O3 120.441 O2 S1 C4 107.907
O2 S1 C5 107.907 O3 S1 C4 107.907
O3 S1 C5 107.907 C4 S1 C5 103.505
H6 C4 H8 110.010 H6 C4 H9 110.010
H7 C5 H10 110.010 H7 C5 H11 110.010
H8 C4 H9 111.552 H10 C5 H11 111.552
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.528      
2 O -0.307      
3 O -0.307      
4 C -0.532      
5 C -0.532      
6 H 0.207      
7 H 0.207      
8 H 0.184      
9 H 0.184      
10 H 0.184      
11 H 0.184      


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 -4.311 4.311
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.567 0.000 0.000
y 0.000 -31.070 0.000
z 0.000 0.000 -37.228
Traceless
 xyz
x -7.418 0.000 0.000
y 0.000 8.328 0.000
z 0.000 0.000 -0.910
Polar
3z2-r2-1.820
x2-y2-10.497
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.349 0.000 0.000
y 0.000 7.050 0.000
z 0.000 0.000 6.529


<r2> (average value of r2) Å2
<r2> 125.757
(<r2>)1/2 11.214