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

using model chemistry: B1B95/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 B1B95/CEP-31G
 hartrees
Energy at 0K-56.641292
Energy at 298.15K 
HF Energy-56.641292
Nuclear repulsion energy101.461059
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 B1B95/CEP-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3255 3117 2.17      
2 A1 3107 2975 6.86      
3 A1 1441 1380 11.16      
4 A1 1356 1299 3.34      
5 A1 1044 999 49.83      
6 A1 777 744 42.47      
7 A1 579 554 4.59      
8 A1 313 300 21.59      
9 A1 205 197 4.01      
10 A2 3256 3118 0.00      
11 A2 1451 1389 0.00      
12 A2 958 917 0.00      
13 A2 220 211 0.00      
14 A2 122 117 0.00      
15 B1 3258 3120 6.41      
16 B1 1459 1397 29.75      
17 B1 1044 1000 58.37      
18 B1 864 827 32.41      
19 B1 260 249 0.96      
20 B1 154 148 0.58      
21 B2 3253 3114 0.16      
22 B2 3106 2974 0.51      
23 B2 1431 1371 14.25      
24 B2 1329 1273 2.42      
25 B2 954 913 17.92      
26 B2 664 635 28.16      
27 B2 315 301 41.95      

Unscaled Zero Point Vibrational Energy (zpe) 18087.2 cm-1
Scaled (by 0.9575) Zero Point Vibrational Energy (zpe) 17318.5 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 B1B95/CEP-31G
ABC
0.12582 0.12108 0.11619

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.171
O2 -1.442 0.000 0.984
O3 1.442 0.000 0.984
C4 0.000 1.514 -0.969
C5 0.000 -1.514 -0.969
H6 0.000 2.369 -0.284
H7 0.000 -2.369 -0.284
H8 0.916 1.481 -1.571
H9 -0.916 1.481 -1.571
H10 -0.916 -1.481 -1.571
H11 0.916 -1.481 -1.571

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.65551.65551.89531.89532.41242.41242.46282.46282.46282.4628
O21.65552.88452.86122.86123.04963.04963.77902.99902.99903.7790
O31.65552.88452.86122.86123.04963.04962.99903.77903.77902.9990
C41.89532.86122.86123.02801.09583.94311.09671.09673.18903.1890
C51.89532.86122.86123.02803.94311.09583.18903.18901.09671.0967
H62.41243.04963.04961.09583.94314.73831.81231.81234.16134.1613
H72.41243.04963.04963.94311.09584.73834.16134.16131.81231.8123
H82.46283.77902.99901.09673.18901.81234.16131.83283.48282.9615
H92.46282.99903.77901.09673.18901.81234.16131.83282.96153.4828
H102.46282.99903.77903.18901.09674.16131.81233.48282.96151.8328
H112.46283.77902.99903.18901.09674.16131.81232.96153.48281.8328

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 104.315 S1 C4 H8 107.800
S1 C4 H9 107.800 S1 C5 H7 104.315
S1 C5 H10 107.800 S1 C5 H11 107.800
O2 S1 O3 121.192 O2 S1 C4 107.179
O2 S1 C5 107.179 O3 S1 C4 107.179
O3 S1 C5 107.179 C4 S1 C5 106.034
H6 C4 H8 111.504 H6 C4 H9 111.504
H7 C5 H10 111.504 H7 C5 H11 111.504
H8 C4 H9 113.368 H10 C5 H11 113.368
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.552      
2 O -0.476      
3 O -0.476      
4 C -0.452      
5 C -0.452      
6 H 0.247      
7 H 0.247      
8 H 0.202      
9 H 0.202      
10 H 0.202      
11 H 0.202      


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 -6.629 6.629
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.711 0.000 0.000
y 0.000 -30.166 0.000
z 0.000 0.000 -39.625
Traceless
 xyz
x -11.816 0.000 0.000
y 0.000 13.002 0.000
z 0.000 0.000 -1.186
Polar
3z2-r2-2.373
x2-y2-16.545
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.803 0.000 0.000
y 0.000 7.648 0.000
z 0.000 0.000 7.193


<r2> (average value of r2) Å2
<r2> 120.240
(<r2>)1/2 10.965