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: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-238.565602
Energy at 298.15K 
HF Energy-238.565602
Nuclear repulsion energy156.037062
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 HF/LANL2DZ
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 3406 3065 0.28      
2 A1 3269 2942 12.31      
3 A1 1600 1440 9.54      
4 A1 1545 1390 0.03      
5 A1 1202 1082 37.78      
6 A1 752 676 2.44      
7 A1 588 529 2.98      
8 A1 313 282 36.64      
9 A1 242 217 8.30      
10 A2 3407 3066 0.00      
11 A2 1610 1449 0.00      
12 A2 1125 1012 0.00      
13 A2 246 222 0.00      
14 A2 171 154 0.00      
15 B1 3410 3068 3.72      
16 B1 1620 1457 37.39      
17 B1 1190 1071 17.10      
18 B1 814 732 1.39      
19 B1 280 252 1.09      
20 B1 189 170 0.53      
21 B2 3405 3064 0.08      
22 B2 3268 2940 2.53      
23 B2 1590 1431 15.32      
24 B2 1522 1370 0.02      
25 B2 1101 991 9.23      
26 B2 785 707 2.92      
27 B2 321 289 64.19      

Unscaled Zero Point Vibrational Energy (zpe) 19484.5 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 17534.1 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 HF/LANL2DZ
ABC
0.12803 0.12761 0.11867

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.192
O2 -1.454 0.000 1.005
O3 1.454 0.000 1.005
C4 0.000 1.471 -0.898
C5 0.000 -1.471 -0.898
H6 0.000 2.320 -0.237
H7 0.000 -2.320 -0.237
H8 0.894 1.452 -1.496
H9 -0.894 1.452 -1.496
H10 -0.894 -1.452 -1.496
H11 0.894 -1.452 -1.496

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.66571.66571.83001.83002.35912.35912.39942.39942.39942.3994
O21.66572.90712.81002.81003.00613.00613.72532.94582.94583.7253
O31.66572.90712.81002.81003.00613.00612.94583.72533.72532.9458
C41.83002.81002.81002.94101.07633.84761.07641.07643.11443.1144
C51.83002.81002.81002.94103.84761.07633.11443.11441.07641.0764
H62.35913.00613.00611.07633.84764.63971.77191.77194.07614.0761
H72.35913.00613.00613.84761.07634.63974.07614.07611.77191.7719
H82.39943.72532.94581.07643.11441.77194.07611.78893.41092.9042
H92.39942.94583.72531.07643.11441.77194.07611.78892.90423.4109
H102.39942.94583.72533.11441.07644.07611.77193.41092.90421.7889
H112.39943.72532.94583.11441.07644.07611.77192.90423.41091.7889

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 105.577 S1 C4 H8 108.494
S1 C4 H9 108.494 S1 C5 H7 105.577
S1 C5 H10 108.494 S1 C5 H11 108.494
O2 S1 O3 121.527 O2 S1 C4 106.901
O2 S1 C5 106.901 O3 S1 C4 106.901
O3 S1 C5 106.901 C4 S1 C5 106.943
H6 C4 H8 110.794 H6 C4 H9 110.794
H7 C5 H10 110.794 H7 C5 H11 110.794
H8 C4 H9 112.403 H10 C5 H11 112.403
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.190      
2 O -0.715      
3 O -0.715      
4 C -0.641      
5 C -0.641      
6 H 0.284      
7 H 0.284      
8 H 0.239      
9 H 0.239      
10 H 0.239      
11 H 0.239      


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 -7.098 7.098
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -48.772 0.000 0.000
y 0.000 -30.100 0.000
z 0.000 0.000 -40.646
Traceless
 xyz
x -13.400 0.000 0.000
y 0.000 14.610 0.000
z 0.000 0.000 -1.210
Polar
3z2-r2-2.420
x2-y2-18.673
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.442 0.000 0.000
y 0.000 6.668 0.000
z 0.000 0.000 6.377


<r2> (average value of r2) Å2
<r2> 142.154
(<r2>)1/2 11.923