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

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-624.999268
Energy at 298.15K 
HF Energy-624.999268
Nuclear repulsion energy258.219398
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 mPW1PW91/3-21G
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 3237 3090 0.43      
2 A1 3119 2977 0.44      
3 A1 1506 1438 5.97      
4 A1 1399 1335 14.11      
5 A1 1073 1025 63.85      
6 A1 921 879 29.00      
7 A1 588 561 16.46      
8 A1 406 388 18.10      
9 A1 245 233 2.16      
10 A2 3238 3091 0.00      
11 A2 1506 1438 0.00      
12 A2 957 914 0.00      
13 A2 204 194 0.00      
14 A2 138 132 0.00      
15 B1 3242 3095 0.01      
16 B1 1523 1453 37.04      
17 B1 1166 1113 75.73      
18 B1 981 936 0.10      
19 B1 283 271 1.41      
20 B1 174 166 0.45      
21 B2 3235 3089 1.47      
22 B2 3117 2975 0.70      
23 B2 1493 1425 18.67      
24 B2 1375 1312 9.53      
25 B2 970 926 27.44      
26 B2 658 628 62.06      
27 B2 324 309 29.97      

Unscaled Zero Point Vibrational Energy (zpe) 18538.5 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 17696.8 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 mPW1PW91/3-21G
ABC
0.12939 0.12845 0.12476

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.198
O2 -1.368 0.000 0.998
O3 1.368 0.000 0.998
C4 0.000 1.435 -0.997
C5 0.000 -1.435 -0.997
H6 0.000 2.340 -0.391
H7 0.000 -2.340 -0.391
H8 0.906 1.371 -1.599
H9 -0.906 1.371 -1.599
H10 -0.906 -1.371 -1.599
H11 0.906 -1.371 -1.599

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.58491.58491.86801.86802.41302.41302.43482.43482.43482.4348
O21.58492.73672.81332.81333.04593.04593.71402.97252.97253.7140
O31.58492.73672.81332.81333.04593.04592.97253.71403.71402.9725
C41.86802.81332.81332.87011.08953.82351.08911.08913.00893.0089
C51.86802.81332.81332.87013.82351.08953.00893.00891.08911.0891
H62.41303.04593.04591.08953.82354.68001.79431.79434.00594.0059
H72.41303.04593.04593.82351.08954.68004.00594.00591.79431.7943
H82.43483.71402.97251.08913.00891.79434.00591.81173.28562.7410
H92.43482.97253.71401.08913.00891.79434.00591.81172.74103.2856
H102.43482.97253.71403.00891.08914.00591.79433.28562.74101.8117
H112.43483.71402.97253.00891.08914.00591.79432.74103.28561.8117

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 106.357 S1 C4 H8 107.929
S1 C4 H9 107.929 S1 C5 H7 106.357
S1 C5 H10 107.929 S1 C5 H11 107.929
O2 S1 O3 119.385 O2 S1 C4 108.848
O2 S1 C5 108.848 O3 S1 C4 108.848
O3 S1 C5 108.848 C4 S1 C5 100.391
H6 C4 H8 110.893 H6 C4 H9 110.893
H7 C5 H10 110.893 H7 C5 H11 110.893
H8 C4 H9 112.553 H10 C5 H11 112.553
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.398      
2 O -0.584      
3 O -0.584      
4 C -0.966      
5 C -0.966      
6 H 0.303      
7 H 0.303      
8 H 0.274      
9 H 0.274      
10 H 0.274      
11 H 0.274      


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 -5.247 5.247
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.415 0.000 0.000
y 0.000 -32.256 0.000
z 0.000 0.000 -39.636
Traceless
 xyz
x -8.469 0.000 0.000
y 0.000 9.769 0.000
z 0.000 0.000 -1.300
Polar
3z2-r2-2.600
x2-y2-12.158
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.464 0.000 0.000
y 0.000 6.776 0.000
z 0.000 0.000 6.564


<r2> (average value of r2) Å2
<r2> 139.671
(<r2>)1/2 11.818