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All results from a given calculation for C2H6O2S (Dimethyl sulfone)

using model chemistry: MP4/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4/Def2TZVPP
 hartrees
Energy at 0K-627.665772
Energy at 298.15K 
HF Energy-626.567342
Nuclear repulsion energy274.618801
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 MP4/Def2TZVPP
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 3167 3167        
2 A1 3062 3062        
3 A1 1467 1467        
4 A1 1352 1352        
5 A1 1166 1166        
6 A1 1003 1003        
7 A1 692 692        
8 A1 483 483        
9 A1 268 268        
10 A2 3173 3173        
11 A2 1450 1450        
12 A2 925 925        
13 A2 296 296        
14 A2 181 181        
15 B1 3176 3176        
16 B1 1467 1467        
17 B1 1360 1360        
18 B1 983 983        
19 B1 357 357        
20 B1 223 223        
21 B2 3166 3166        
22 B2 3060 3060        
23 B2 1455 1455        
24 B2 1337 1337        
25 B2 936 936        
26 B2 752 752        
27 B2 453 453        

Unscaled Zero Point Vibrational Energy (zpe) 18702.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18702.7 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 MP4/Def2TZVPP
ABC
0.15223 0.14229 0.13886

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.192
O2 -1.258 0.000 0.910
O3 1.258 0.000 0.910
C4 0.000 1.393 -0.915
C5 0.000 -1.393 -0.915
H6 0.000 2.276 -0.276
H7 0.000 -2.276 -0.276
H8 0.901 1.370 -1.525
H9 -0.901 1.370 -1.525
H10 -0.901 -1.370 -1.525
H11 0.901 -1.370 -1.525

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.44871.44871.77891.77892.32342.32342.37442.37442.37442.3744
O21.44872.51622.61792.61792.85812.85813.53152.81712.81713.5315
O31.44872.51622.61792.61792.85812.85812.81713.53153.53152.8171
C41.77892.61792.61792.78571.09003.72391.08881.08882.96972.9697
C51.77892.61792.61792.78573.72391.09002.96972.96971.08881.0888
H62.32342.85812.85811.09003.72394.55161.78711.78713.95813.9581
H72.32342.85812.85813.72391.09004.55163.95813.95811.78711.7871
H82.37443.53152.81711.08882.96971.78713.95811.80253.28002.7403
H92.37442.81713.53151.08882.96971.78713.95811.80252.74033.2800
H102.37442.81713.53152.96971.08883.95811.78713.28002.74031.8025
H112.37443.53152.81712.96971.08883.95811.78712.74033.28001.8025

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 105.638 S1 C4 H8 109.419
S1 C4 H9 109.419 S1 C5 H7 105.638
S1 C5 H10 109.419 S1 C5 H11 109.419
O2 S1 O3 120.547 O2 S1 C4 107.967
O2 S1 C5 107.967 O3 S1 C4 107.967
O3 S1 C5 107.967 C4 S1 C5 103.064
H6 C4 H8 110.217 H6 C4 H9 110.217
H7 C5 H10 110.217 H7 C5 H11 110.217
H8 C4 H9 111.743 H10 C5 H11 111.743
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability