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

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-56.953138
Energy at 298.15K 
HF Energy-56.953138
Nuclear repulsion energy107.338556
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/CEP-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 3179 3070 8.75      
2 A1 3074 2968 6.61      
3 A1 1453 1404 3.65      
4 A1 1347 1301 11.98      
5 A1 1100 1063 170.53      
6 A1 992 958 0.72      
7 A1 641 619 9.63      
8 A1 450 434 23.35      
9 A1 250 242 2.13      
10 A2 3180 3071 0.00      
11 A2 1448 1399 0.00      
12 A2 925 893 0.00      
13 A2 273 264 0.00      
14 A2 165 160 0.00      
15 B1 3184 3075 17.11      
16 B1 1463 1413 11.83      
17 B1 1272 1228 229.84      
18 B1 978 944 0.80      
19 B1 332 321 0.84      
20 B1 200 193 0.54      
21 B2 3177 3068 0.17      
22 B2 3071 2965 1.81      
23 B2 1444 1395 7.54      
24 B2 1325 1280 5.98      
25 B2 936 904 61.67      
26 B2 710 686 42.18      
27 B2 422 407 34.40      

Unscaled Zero Point Vibrational Energy (zpe) 18495.5 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 17861.1 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/CEP-31G*
ABC
0.14515 0.13435 0.13125

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.255
O2 -1.290 0.000 0.993
O3 1.290 0.000 0.993
C4 0.000 1.441 -0.878
C5 0.000 -1.441 -0.878
H6 0.000 2.326 -0.223
H7 0.000 -2.326 -0.223
H8 0.912 1.420 -1.493
H9 -0.912 1.420 -1.493
H10 -0.912 -1.420 -1.493
H11 0.912 -1.420 -1.493

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.48591.48591.83321.83322.37442.37442.43012.43012.43012.4301
O21.48592.58002.69072.69072.92432.92433.61192.88772.88773.6119
O31.48592.58002.69072.69072.92432.92432.88773.61193.61192.8877
C41.83322.69072.69072.88251.10043.82351.10061.10063.06583.0658
C51.83322.69072.69072.88253.82351.10043.06583.06581.10061.1006
H62.37442.92432.92431.10043.82354.65151.80691.80694.05934.0593
H72.37442.92432.92433.82351.10044.65154.05934.05931.80691.8069
H82.43013.61192.88771.10063.06581.80694.05931.82453.37602.8405
H92.43012.88773.61191.10063.06581.80694.05931.82452.84053.3760
H102.43012.88773.61193.06581.10064.05931.80693.37602.84051.8245
H112.43013.61192.88773.06581.10064.05931.80692.84053.37601.8245

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 105.325 S1 C4 H8 109.300
S1 C4 H9 109.300 S1 C5 H7 105.325
S1 C5 H10 109.300 S1 C5 H11 109.300
O2 S1 O3 120.483 O2 S1 C4 107.863
O2 S1 C5 107.863 O3 S1 C4 107.863
O3 S1 C5 107.863 C4 S1 C5 103.660
H6 C4 H8 110.358 H6 C4 H9 110.358
H7 C5 H10 110.358 H7 C5 H11 110.358
H8 C4 H9 111.976 H10 C5 H11 111.976
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.348      
2 O -0.344      
3 O -0.344      
4 C -0.424      
5 C -0.424      
6 H 0.225      
7 H 0.225      
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 -4.988 4.988
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.609 0.000 0.000
y 0.000 -30.738 0.000
z 0.000 0.000 -38.367
Traceless
 xyz
x -8.056 0.000 0.000
y 0.000 9.750 0.000
z 0.000 0.000 -1.693
Polar
3z2-r2-3.386
x2-y2-11.871
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.575 0.000 0.000
y 0.000 7.240 0.000
z 0.000 0.000 6.661


<r2> (average value of r2) Å2
<r2> 109.455
(<r2>)1/2 10.462