return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/STO-3G
 hartrees
Energy at 0K-620.653036
Energy at 298.15K 
HF Energy-620.653036
Nuclear repulsion energy249.374422
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 B3PW91/STO-3G
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 3541 3134 0.41      
2 A1 3323 2940 11.43      
3 A1 1636 1448 1.50      
4 A1 1400 1239 0.02      
5 A1 984 871 47.47      
6 A1 842 746 26.86      
7 A1 593 525 28.63      
8 A1 297 263 8.92      
9 A1 225 199 1.66      
10 A2 3538 3131 0.00      
11 A2 1639 1451 0.00      
12 A2 885 783 0.00      
13 A2 206 182 0.00      
14 A2 50 44 0.00      
15 B1 3539 3132 0.20      
16 B1 1645 1456 9.04      
17 B1 1062 940 48.92      
18 B1 878 777 0.10      
19 B1 284 251 2.43      
20 B1 108 95 0.05      
21 B2 3539 3132 0.40      
22 B2 3320 2938 26.67      
23 B2 1632 1444 3.95      
24 B2 1380 1222 3.68      
25 B2 886 784 17.40      
26 B2 576 509 95.60      
27 B2 285 252 7.86      

Unscaled Zero Point Vibrational Energy (zpe) 19146.1 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 16944.3 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 B3PW91/STO-3G
ABC
0.12221 0.11738 0.11477

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.251
O2 -1.415 0.000 1.046
O3 1.415 0.000 1.046
C4 0.000 1.463 -1.078
C5 0.000 -1.463 -1.078
H6 0.000 2.411 -0.526
H7 0.000 -2.411 -0.526
H8 0.906 1.366 -1.689
H9 -0.906 1.366 -1.689
H10 -0.906 -1.366 -1.689
H11 0.906 -1.366 -1.689

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.62281.62281.97601.97602.53332.53332.53912.53912.53912.5391
O21.62282.82942.94122.94123.20733.20733.83773.09853.09853.8377
O31.62282.82942.94122.94123.20733.20733.09853.83773.83773.0985
C41.97602.94122.94122.92591.09683.91321.09711.09713.03263.0326
C51.97602.94122.94122.92593.91321.09683.03263.03261.09711.0971
H62.53333.20733.20731.09683.91324.82241.80671.80674.05444.0544
H72.53333.20733.20733.91321.09684.82244.05444.05441.80671.8067
H82.53913.83773.09851.09713.03261.80674.05441.81233.27832.7318
H92.53913.09853.83771.09713.03261.80674.05441.81232.73183.2783
H102.53913.09853.83773.03261.09714.05441.80673.27832.73181.8123
H112.53913.83773.09853.03261.09714.05441.80672.73183.27831.8123

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 107.591 S1 C4 H8 107.985
S1 C4 H9 107.985 S1 C5 H7 107.591
S1 C5 H10 107.985 S1 C5 H11 107.985
O2 S1 O3 121.327 O2 S1 C4 109.229
O2 S1 C5 109.229 O3 S1 C4 109.229
O3 S1 C5 109.229 C4 S1 C5 95.524
H6 C4 H8 110.875 H6 C4 H9 110.875
H7 C5 H10 110.875 H7 C5 H11 110.875
H8 C4 H9 111.365 H10 C5 H11 111.365
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.772      
2 O -0.346      
3 O -0.346      
4 C -0.310      
5 C -0.310      
6 H 0.092      
7 H 0.092      
8 H 0.089      
9 H 0.089      
10 H 0.089      
11 H 0.089      


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 -2.938 2.938
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.042 0.000 0.000
y 0.000 -31.520 0.000
z 0.000 0.000 -35.452
Traceless
 xyz
x -5.556 0.000 0.000
y 0.000 5.727 0.000
z 0.000 0.000 -0.171
Polar
3z2-r2-0.341
x2-y2-7.522
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.465 0.000 0.000
y 0.000 5.060 0.000
z 0.000 0.000 4.983


<r2> (average value of r2) Å2
<r2> 146.549
(<r2>)1/2 12.106