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: B3LYP/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 B3LYP/3-21G*
 hartrees
Energy at 0K-625.303704
Energy at 298.15K 
HF Energy-625.303704
Nuclear repulsion energy271.482435
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 B3LYP/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 3157 3037 1.62      
2 A1 3074 2958 1.50      
3 A1 1527 1469 3.97      
4 A1 1430 1376 19.07      
5 A1 1164 1120 160.19      
6 A1 1043 1004 0.00      
7 A1 668 643 17.08      
8 A1 486 467 20.94      
9 A1 286 276 2.50      
10 A2 3163 3043 0.00      
11 A2 1513 1456 0.00      
12 A2 976 938 0.00      
13 A2 276 266 0.00      
14 A2 195 188 0.00      
15 B1 3168 3048 4.77      
16 B1 1530 1472 18.39      
17 B1 1374 1322 173.62      
18 B1 1034 994 3.58      
19 B1 357 344 0.72      
20 B1 223 215 0.59      
21 B2 3156 3036 0.06      
22 B2 3071 2955 0.00      
23 B2 1516 1458 12.73      
24 B2 1415 1361 26.74      
25 B2 984 947 65.19      
26 B2 742 714 76.23      
27 B2 430 414 29.54      

Unscaled Zero Point Vibrational Energy (zpe) 18979.8 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 18258.6 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 B3LYP/3-21G*
ABC
0.14717 0.14041 0.13568

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.200
O2 -1.274 0.000 0.930
O3 1.274 0.000 0.930
C4 0.000 1.393 -0.934
C5 0.000 -1.393 -0.934
H6 0.000 2.301 -0.324
H7 0.000 -2.301 -0.324
H8 0.899 1.377 -1.555
H9 -0.899 1.377 -1.555
H10 -0.899 -1.377 -1.555
H11 0.899 -1.377 -1.555

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.46821.46821.79661.79662.35962.35962.40532.40532.40532.4053
O21.46822.54812.65312.65312.91342.91343.57672.86582.86583.5767
O31.46822.54812.65312.65312.91342.91342.86583.57673.57672.8658
C41.79662.65312.65312.78601.09383.74371.09241.09242.97752.9775
C51.79662.65312.65312.78603.74371.09382.97752.97751.09241.0924
H62.35962.91342.91341.09383.74374.60121.78241.78243.98103.9810
H72.35962.91342.91343.74371.09384.60123.98103.98101.78241.7824
H82.40533.57672.86581.09242.97751.78243.98101.79753.28862.7539
H92.40532.86583.57671.09242.97751.78243.98101.79752.75393.2886
H102.40532.86583.57672.97751.09243.98101.78243.28862.75391.7975
H112.40533.57672.86582.97751.09243.98101.78242.75393.28861.7975

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 106.909 S1 C4 H8 110.336
S1 C4 H9 110.336 S1 C5 H7 106.909
S1 C5 H10 110.336 S1 C5 H11 110.336
O2 S1 O3 120.403 O2 S1 C4 108.291
O2 S1 C5 108.291 O3 S1 C4 108.291
O3 S1 C5 108.291 C4 S1 C5 101.671
H6 C4 H8 109.232 H6 C4 H9 109.232
H7 C5 H10 109.232 H7 C5 H11 109.232
H8 C4 H9 110.708 H10 C5 H11 110.708
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.172      
2 O -0.464      
3 O -0.464      
4 C -0.838      
5 C -0.838      
6 H 0.256      
7 H 0.256      
8 H 0.230      
9 H 0.230      
10 H 0.230      
11 H 0.230      


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 -4.271 4.271
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.425 0.000 0.000
y 0.000 -32.016 0.000
z 0.000 0.000 -38.211
Traceless
 xyz
x -7.311 0.000 0.000
y 0.000 8.302 0.000
z 0.000 0.000 -0.991
Polar
3z2-r2-1.981
x2-y2-10.409
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.733 0.000 0.000
y 0.000 6.107 0.000
z 0.000 0.000 5.737


<r2> (average value of r2) Å2
<r2> 128.947
(<r2>)1/2 11.356