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

using model chemistry: mPW1PW91/6-31G*

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*
 hartrees
Energy at 0K-628.347808
Energy at 298.15K 
HF Energy-628.347808
Nuclear repulsion energy272.523648
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*
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 3217 3050 0.32      
2 A1 3109 2948 1.24      
3 A1 1490 1413 3.45      
4 A1 1391 1319 19.59      
5 A1 1168 1107 169.41      
6 A1 1032 978 0.71      
7 A1 692 656 11.29      
8 A1 485 460 25.11      
9 A1 269 255 2.60      
10 A2 3219 3053 0.00      
11 A2 1479 1402 0.00      
12 A2 959 909 0.00      
13 A2 284 269 0.00      
14 A2 190 180 0.00      
15 B1 3223 3056 1.84      
16 B1 1496 1419 12.08      
17 B1 1365 1295 231.12      
18 B1 1018 965 1.81      
19 B1 358 339 0.55      
20 B1 220 209 0.54      
21 B2 3216 3049 1.02      
22 B2 3107 2946 0.12      
23 B2 1480 1404 8.77      
24 B2 1372 1301 18.39      
25 B2 970 920 73.28      
26 B2 761 722 47.37      
27 B2 447 424 35.59      

Unscaled Zero Point Vibrational Energy (zpe) 19006.5 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 18023.9 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*
ABC
0.15034 0.13941 0.13684

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.192
O2 -1.271 0.000 0.914
O3 1.271 0.000 0.914
C4 0.000 1.408 -0.917
C5 0.000 -1.408 -0.917
H6 0.000 2.293 -0.279
H7 0.000 -2.293 -0.279
H8 0.901 1.395 -1.531
H9 -0.901 1.395 -1.531
H10 -0.901 -1.395 -1.531
H11 0.901 -1.395 -1.531

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.46171.46171.79161.79162.34062.34062.39262.39262.39262.3926
O21.46172.54152.63582.63582.87992.87993.55522.83882.83883.5552
O31.46172.54152.63582.63582.87992.87992.83883.55523.55522.8388
C41.79162.63582.63582.81521.09143.75511.09061.09063.00693.0069
C51.79162.63582.63582.81523.75511.09143.00693.00691.09061.0906
H62.34062.87992.87991.09143.75514.58581.78541.78543.99733.9973
H72.34062.87992.87993.75511.09144.58583.99733.99731.78541.7854
H82.39263.55522.83881.09063.00691.78543.99731.80213.32082.7892
H92.39262.83883.55521.09063.00691.78543.99731.80212.78923.3208
H102.39262.83883.55523.00691.09063.99731.78543.32082.78921.8021
H112.39263.55522.83883.00691.09063.99731.78542.78923.32081.8021

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 105.988 S1 C4 H8 109.821
S1 C4 H9 109.821 S1 C5 H7 105.988
S1 C5 H10 109.821 S1 C5 H11 109.821
O2 S1 O3 120.777 O2 S1 C4 107.800
O2 S1 C5 107.800 O3 S1 C4 107.800
O3 S1 C5 107.800 C4 S1 C5 103.561
H6 C4 H8 109.819 H6 C4 H9 109.819
H7 C5 H10 109.819 H7 C5 H11 109.819
H8 C4 H9 111.428 H10 C5 H11 111.428
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.109      
2 O -0.538      
3 O -0.538      
4 C -0.718      
5 C -0.718      
6 H 0.251      
7 H 0.251      
8 H 0.225      
9 H 0.225      
10 H 0.225      
11 H 0.225      


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 -4.628 4.628
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.670 0.000 0.000
y 0.000 -31.307 0.000
z 0.000 0.000 -37.948
Traceless
 xyz
x -8.043 0.000 0.000
y 0.000 9.002 0.000
z 0.000 0.000 -0.960
Polar
3z2-r2-1.919
x2-y2-11.363
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.219 0.000 0.000
y 0.000 6.654 0.000
z 0.000 0.000 6.223


<r2> (average value of r2) Å2
<r2> 128.024
(<r2>)1/2 11.315