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

using model chemistry: LSDA/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 LSDA/6-31G(2df,p)
 hartrees
Energy at 0K-626.252184
Energy at 298.15K 
HF Energy-626.252184
Nuclear repulsion energy275.431087
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 LSDA/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 3116 3066 0.15      
2 A1 3000 2952 0.12      
3 A1 1377 1355 1.50      
4 A1 1263 1243 50.90      
5 A1 1172 1153 102.59      
6 A1 955 940 7.98      
7 A1 686 675 9.30      
8 A1 473 466 19.18      
9 A1 261 257 2.98      
10 A2 3119 3069 0.00      
11 A2 1360 1338 0.00      
12 A2 864 850 0.00      
13 A2 275 271 0.00      
14 A2 169 166 0.00      
15 B1 3122 3072 0.00      
16 B1 1400 1377 55.05      
17 B1 1368 1346 135.65      
18 B1 928 914 4.54      
19 B1 337 332 0.00      
20 B1 205 202 0.52      
21 B2 3115 3065 3.42      
22 B2 2998 2950 2.50      
23 B2 1364 1342 7.71      
24 B2 1243 1223 30.47      
25 B2 893 879 90.44      
26 B2 727 716 23.33      
27 B2 437 430 24.81      

Unscaled Zero Point Vibrational Energy (zpe) 18114.1 cm-1
Scaled (by 0.984) Zero Point Vibrational Energy (zpe) 17824.3 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 LSDA/6-31G(2df,p)
ABC
0.15317 0.14336 0.14019

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.192
O2 -1.255 0.000 0.905
O3 1.255 0.000 0.905
C4 0.000 1.383 -0.910
C5 0.000 -1.383 -0.910
H6 0.000 2.274 -0.263
H7 0.000 -2.274 -0.263
H8 0.910 1.366 -1.527
H9 -0.910 1.366 -1.527
H10 -0.910 -1.366 -1.527
H11 0.910 -1.366 -1.527

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.44361.44361.76851.76852.31912.31912.37692.37692.37692.3769
O21.44362.50952.60462.60462.84812.84813.53142.81142.81143.5314
O31.44362.50952.60462.60462.84812.84812.81143.53143.53142.8114
C41.76852.60462.60462.76691.10073.71431.09961.09962.96152.9615
C51.76852.60462.60462.76693.71431.10072.96152.96151.09961.0996
H62.31912.84812.84811.10073.71434.54811.80261.80263.95963.9596
H72.31912.84812.84813.71431.10074.54813.95963.95961.80261.8026
H82.37693.53142.81141.09962.96151.80263.95961.81963.28322.7328
H92.37692.81143.53141.09962.96151.80263.95961.81962.73283.2832
H102.37692.81143.53142.96151.09963.95961.80263.28322.73281.8196
H112.37693.53142.81142.96151.09963.95961.80262.73283.28321.8196

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 105.482 S1 C4 H8 109.729
S1 C4 H9 109.729 S1 C5 H7 105.482
S1 C5 H10 109.729 S1 C5 H11 109.729
O2 S1 O3 120.734 O2 S1 C4 107.939
O2 S1 C5 107.939 O3 S1 C4 107.939
O3 S1 C5 107.939 C4 S1 C5 102.939
H6 C4 H8 110.025 H6 C4 H9 110.025
H7 C5 H10 110.025 H7 C5 H11 110.025
H8 C4 H9 111.666 H10 C5 H11 111.666
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.307      
2 O -0.220      
3 O -0.220      
4 C -0.535      
5 C -0.535      
6 H 0.217      
7 H 0.217      
8 H 0.192      
9 H 0.192      
10 H 0.192      
11 H 0.192      


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 -4.189 4.189
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.399 0.000 0.000
y 0.000 -31.332 0.000
z 0.000 0.000 -37.301
Traceless
 xyz
x -7.082 0.000 0.000
y 0.000 8.018 0.000
z 0.000 0.000 -0.936
Polar
3z2-r2-1.872
x2-y2-10.067
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.559 0.000 0.000
y 0.000 7.273 0.000
z 0.000 0.000 6.758


<r2> (average value of r2) Å2
<r2> 125.299
(<r2>)1/2 11.194