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: QCISD(T)=FULL/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD(T)=FULL/6-31+G**
 hartrees
Energy at 0K-627.311827
Energy at 298.15K 
HF Energy-626.404977
Nuclear repulsion energy271.537762
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 QCISD(T)=FULL/6-31+G**
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 3228 3228        
2 A1 3112 3112        
3 A1 1497 1497        
4 A1 1404 1404        
5 A1 1133 1133        
6 A1 1032 1032        
7 A1 691 691        
8 A1 468 468        
9 A1 270 270        
10 A2 3229 3229        
11 A2 1487 1487        
12 A2 971 971        
13 A2 293 293        
14 A2 199 199        
15 B1 3232 3232        
16 B1 1502 1502        
17 B1 1304 1304        
18 B1 1024 1024        
19 B1 355 355        
20 B1 229 229        
21 B2 3226 3226        
22 B2 3110 3110        
23 B2 1490 1490        
24 B2 1385 1385        
25 B2 978 978        
26 B2 771 771        
27 B2 444 444        

Unscaled Zero Point Vibrational Energy (zpe) 19030.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19030.7 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 QCISD(T)=FULL/6-31+G**
ABC
0.14890 0.13821 0.13681

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.189
O2 -1.284 0.000 0.916
O3 1.284 0.000 0.916
C4 0.000 1.409 -0.917
C5 0.000 -1.409 -0.917
H6 0.000 2.291 -0.278
H7 0.000 -2.291 -0.278
H8 0.901 1.386 -1.527
H9 -0.901 1.386 -1.527
H10 -0.901 -1.386 -1.527
H11 0.901 -1.386 -1.527

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.47521.47521.79121.79122.33852.33852.38262.38262.38262.3826
O21.47522.56732.64422.64422.88512.88513.55802.83472.83473.5580
O31.47522.56732.64422.64422.88512.88512.83473.55803.55802.8347
C41.79122.64422.64422.81851.08893.75531.08821.08822.99952.9995
C51.79122.64422.64422.81853.75531.08892.99952.99951.08821.0882
H62.33852.88512.88511.08893.75534.58271.78621.78623.98673.9867
H72.33852.88512.88513.75531.08894.58273.98673.98671.78621.7862
H82.38263.55802.83471.08822.99951.78623.98671.80123.30582.7720
H92.38262.83473.55801.08822.99951.78623.98671.80122.77203.3058
H102.38262.83473.55802.99951.08823.98671.78623.30582.77201.8012
H112.38263.55802.83472.99951.08823.98671.78622.77203.30581.8012

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 105.984 S1 C4 H8 109.232
S1 C4 H9 109.232 S1 C5 H7 105.984
S1 C5 H10 109.232 S1 C5 H11 109.232
O2 S1 O3 120.959 O2 S1 C4 107.707
O2 S1 C5 107.707 O3 S1 C4 107.707
O3 S1 C5 107.707 C4 S1 C5 103.767
H6 C4 H8 110.255 H6 C4 H9 110.255
H7 C5 H10 110.255 H7 C5 H11 110.255
H8 C4 H9 111.709 H10 C5 H11 111.709
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability