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: B3LYPultrafine/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYPultrafine/cc-pVTZ
 hartrees
Energy at 0K-628.553492
Energy at 298.15K 
HF Energy-628.553492
Nuclear repulsion energy272.545303
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 B3LYPultrafine/cc-pVTZ
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 3155 3050 1.11      
2 A1 3059 2957 1.84      
3 A1 1460 1412 3.28      
4 A1 1347 1302 16.09      
5 A1 1146 1108 155.91      
6 A1 1006 973 0.30      
7 A1 654 633 13.36      
8 A1 476 460 22.72      
9 A1 264 255 2.48      
10 A2 3159 3053 0.00      
11 A2 1450 1402 0.00      
12 A2 934 903 0.00      
13 A2 289 280 0.00      
14 A2 170 165 0.00      
15 B1 3163 3058 2.90      
16 B1 1466 1417 7.38      
17 B1 1331 1286 221.84      
18 B1 989 956 0.48      
19 B1 350 338 0.41      
20 B1 200 193 0.46      
21 B2 3154 3049 0.42      
22 B2 3057 2955 0.01      
23 B2 1451 1402 5.94      
24 B2 1331 1287 11.07      
25 B2 942 911 64.25      
26 B2 720 696 50.68      
27 B2 443 428 33.70      

Unscaled Zero Point Vibrational Energy (zpe) 18582.6 cm-1
Scaled (by 0.9667) Zero Point Vibrational Energy (zpe) 17963.8 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 B3LYPultrafine/cc-pVTZ
ABC
0.15083 0.13931 0.13576

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.190
O2 -1.263 0.000 0.916
O3 1.263 0.000 0.916
C4 0.000 1.418 -0.920
C5 0.000 -1.418 -0.920
H6 0.000 2.292 -0.274
H7 0.000 -2.292 -0.274
H8 0.900 1.398 -1.529
H9 -0.900 1.398 -1.529
H10 -0.900 -1.398 -1.529
H11 0.900 -1.398 -1.529

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.45671.45671.80101.80102.33882.33882.39232.39232.39232.3923
O21.45672.52612.64172.64172.87512.87513.55182.84022.84023.5518
O31.45672.52612.64172.64172.87512.87512.84023.55183.55182.8402
C41.80102.64172.64172.83521.08773.76581.08691.08693.01853.0185
C51.80102.64172.64172.83523.76581.08773.01853.01851.08691.0869
H62.33882.87512.87511.08773.76584.58451.78461.78464.00104.0010
H72.33882.87512.87513.76581.08774.58454.00104.00101.78461.7846
H82.39233.55182.84021.08693.01851.78464.00101.80073.32652.7970
H92.39232.84023.55181.08693.01851.78464.00101.80072.79703.3265
H102.39232.84023.55183.01851.08694.00101.78463.32652.79701.8007
H112.39233.55182.84023.01851.08694.00101.78462.79703.32651.8007

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 105.439 S1 C4 H8 109.361
S1 C4 H9 109.361 S1 C5 H7 105.439
S1 C5 H10 109.361 S1 C5 H11 109.361
O2 S1 O3 120.232 O2 S1 C4 107.898
O2 S1 C5 107.898 O3 S1 C4 107.898
O3 S1 C5 107.898 C4 S1 C5 103.831
H6 C4 H8 110.303 H6 C4 H9 110.303
H7 C5 H10 110.303 H7 C5 H11 110.303
H8 C4 H9 111.864 H10 C5 H11 111.864
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.839      
2 O -0.470      
3 O -0.470      
4 C -0.309      
5 C -0.309      
6 H 0.132      
7 H 0.132      
8 H 0.114      
9 H 0.114      
10 H 0.114      
11 H 0.114      


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 -4.551 4.551
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.167 0.000 0.000
y 0.000 -31.868 0.000
z 0.000 0.000 -38.461
Traceless
 xyz
x -8.003 0.000 0.000
y 0.000 8.945 0.000
z 0.000 0.000 -0.943
Polar
3z2-r2-1.886
x2-y2-11.299
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.014 0.000 0.000
y 0.000 7.924 0.000
z 0.000 0.000 7.212


<r2> (average value of r2) Å2
<r2> 128.524
(<r2>)1/2 11.337