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

using model chemistry: CCSD(T)/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD(T)/TZVP
 hartrees
Energy at 0K-627.411345
Energy at 298.15K 
HF Energy-626.487117
Nuclear repulsion energy270.395366
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 CCSD(T)/TZVP
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 3188 3068        
2 A1 3076 2961        
3 A1 1472 1417        
4 A1 1381 1330        
5 A1 1118 1076        
6 A1 1015 977        
7 A1 669 644        
8 A1 455 438        
9 A1 263 254        
10 A2 3187 3068        
11 A2 1458 1404        
12 A2 955 919        
13 A2 294 283        
14 A2 165 159        
15 B1 3191 3071        
16 B1 1476 1421        
17 B1 1298 1249        
18 B1 1003 966        
19 B1 354 340        
20 B1 205 197        
21 B2 3186 3067        
22 B2 3074 2958        
23 B2 1462 1407        
24 B2 1361 1310        
25 B2 957 921        
26 B2 741 713        
27 B2 442 425        

Unscaled Zero Point Vibrational Energy (zpe) 18723.2 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 18021.1 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 CCSD(T)/TZVP
ABC
0.14743 0.13746 0.13482

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.193
O2 -1.283 0.000 0.924
O3 1.283 0.000 0.924
C4 0.000 1.418 -0.928
C5 0.000 -1.418 -0.928
H6 0.000 2.300 -0.287
H7 0.000 -2.300 -0.287
H8 0.903 1.389 -1.537
H9 -0.903 1.389 -1.537
H10 -0.903 -1.389 -1.537
H11 0.903 -1.389 -1.537

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.47681.47681.80721.80722.34962.34962.39542.39542.39542.3954
O21.47682.56662.66182.66182.89882.89883.57292.85132.85133.5729
O31.47682.56662.66182.66182.89882.89882.85133.57293.57292.8513
C41.80722.66182.66182.83521.09043.77241.08991.08993.01043.0104
C51.80722.66182.66182.83523.77241.09043.01043.01041.08991.0899
H62.34962.89882.89881.09043.77244.59991.79121.79123.99813.9981
H72.34962.89882.89883.77241.09044.59993.99813.99811.79121.7912
H82.39543.57292.85131.08993.01041.79123.99811.80633.31322.7775
H92.39542.85133.57291.08993.01041.79123.99811.80632.77753.3132
H102.39542.85133.57293.01041.08993.99811.79123.31322.77751.8063
H112.39543.57292.85133.01041.08993.99811.79122.77753.31321.8063

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 105.686 S1 C4 H8 109.026
S1 C4 H9 109.026 S1 C5 H7 105.686
S1 C5 H10 109.026 S1 C5 H11 109.026
O2 S1 O3 120.684 O2 S1 C4 107.873
O2 S1 C5 107.873 O3 S1 C4 107.873
O3 S1 C5 107.873 C4 S1 C5 103.334
H6 C4 H8 110.482 H6 C4 H9 110.482
H7 C5 H10 110.482 H7 C5 H11 110.482
H8 C4 H9 111.925 H10 C5 H11 111.925
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability