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: B2PLYP=FULLultrafine/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULLultrafine/6-311+G(3df,2p)
 hartrees
Energy at 0K-628.324382
Energy at 298.15K 
HF Energy-627.915671
Nuclear repulsion energy275.280082
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 B2PLYP=FULLultrafine/6-311+G(3df,2p)
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 3181 3181 0.72      
2 A1 3080 3080 1.84      
3 A1 1478 1478 3.18      
4 A1 1367 1367 17.88      
5 A1 1170 1170 155.62      
6 A1 1018 1018 0.71      
7 A1 689 689 9.86      
8 A1 490 490 23.37      
9 A1 272 272 2.48      
10 A2 3184 3184 0.00      
11 A2 1465 1465 0.00      
12 A2 945 945 0.00      
13 A2 301 301 0.00      
14 A2 188 188 0.00      
15 B1 3188 3188 1.59      
16 B1 1482 1482 5.98      
17 B1 1358 1358 248.53      
18 B1 1001 1001 0.83      
19 B1 362 362 0.35      
20 B1 219 219 0.39      
21 B2 3179 3179 0.81      
22 B2 3077 3077 0.05      
23 B2 1467 1467 6.00      
24 B2 1353 1353 14.71      
25 B2 951 951 65.31      
26 B2 753 753 38.67      
27 B2 460 460 33.06      

Unscaled Zero Point Vibrational Energy (zpe) 18838.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18838.1 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 B2PLYP=FULLultrafine/6-311+G(3df,2p)
ABC
0.15377 0.14243 0.13893

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.189
O2 -1.251 0.000 0.907
O3 1.251 0.000 0.907
C4 0.000 1.398 -0.910
C5 0.000 -1.398 -0.910
H6 0.000 2.276 -0.270
H7 0.000 -2.276 -0.270
H8 0.898 1.379 -1.519
H9 -0.898 1.379 -1.519
H10 -0.898 -1.379 -1.519
H11 0.898 -1.379 -1.519

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.44251.44251.77821.77822.32162.32162.37192.37192.37192.3719
O21.44252.50212.61172.61172.85112.85113.52242.81272.81273.5224
O31.44252.50212.61172.61172.85112.85112.81273.52243.52242.8127
C41.77822.61172.61172.79651.08643.72951.08551.08552.98222.9822
C51.77822.61172.61172.79653.72951.08642.98222.98221.08551.0855
H62.32162.85112.85111.08643.72954.55181.78091.78093.96603.9660
H72.32162.85112.85113.72951.08644.55183.96603.96601.78091.7809
H82.37193.52242.81271.08552.98221.78093.96601.79673.29232.7588
H92.37192.81273.52241.08552.98221.78093.96601.79672.75883.2923
H102.37192.81273.52242.98221.08553.96601.78093.29232.75881.7967
H112.37193.52242.81272.98221.08553.96601.78092.75883.29231.7967

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 105.733 S1 C4 H8 109.450
S1 C4 H9 109.450 S1 C5 H7 105.733
S1 C5 H10 109.450 S1 C5 H11 109.450
O2 S1 O3 120.286 O2 S1 C4 107.913
O2 S1 C5 107.913 O3 S1 C4 107.913
O3 S1 C5 107.913 C4 S1 C5 103.687
H6 C4 H8 110.162 H6 C4 H9 110.162
H7 C5 H10 110.162 H7 C5 H11 110.162
H8 C4 H9 111.704 H10 C5 H11 111.704
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability