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

using model chemistry: CCSD(T)/6-31G*

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)/6-31G*
 hartrees
Energy at 0K-627.210969
Energy at 298.15K 
HF Energy-626.387582
Nuclear repulsion energy271.506511
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)/6-31G*
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 3067        
2 A1 3083 2967        
3 A1 1502 1445        
4 A1 1412 1359        
5 A1 1152 1108        
6 A1 1040 1001        
7 A1 700 673        
8 A1 483 464        
9 A1 273 263        
10 A2 3189 3068        
11 A2 1490 1434        
12 A2 979 942        
13 A2 289 278        
14 A2 196 189        
15 B1 3192 3071        
16 B1 1506 1449        
17 B1 1342 1291        
18 B1 1034 995        
19 B1 362 349        
20 B1 227 218        
21 B2 3187 3066        
22 B2 3081 2964        
23 B2 1493 1437        
24 B2 1394 1341        
25 B2 991 954        
26 B2 779 749        
27 B2 448 431        

Unscaled Zero Point Vibrational Energy (zpe) 19005.9 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 18285.5 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)/6-31G*
ABC
0.14906 0.13824 0.13658

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.191
O2 -1.281 0.000 0.915
O3 1.281 0.000 0.915
C4 0.000 1.409 -0.917
C5 0.000 -1.409 -0.917
H6 0.000 2.300 -0.279
H7 0.000 -2.300 -0.279
H8 0.904 1.392 -1.533
H9 -0.904 1.392 -1.533
H10 -0.904 -1.392 -1.533
H11 0.904 -1.392 -1.533

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.47181.47181.79241.79242.34712.34712.39312.39312.39312.3931
O21.47182.56242.64262.64262.89052.89053.56482.84162.84163.5648
O31.47182.56242.64262.64262.89052.89052.84163.56483.56482.8416
C41.79242.64262.64262.81871.09543.76361.09461.09463.00733.0073
C51.79242.64262.64262.81873.76361.09543.00733.00731.09461.0946
H62.34712.89052.89051.09543.76364.59951.79351.79354.00244.0024
H72.34712.89052.89053.76361.09544.59954.00244.00241.79351.7935
H82.39313.56482.84161.09463.00731.79354.00241.80833.31932.7834
H92.39312.84163.56481.09463.00731.79354.00241.80832.78343.3193
H102.39312.84163.56483.00731.09464.00241.79353.31932.78341.8083
H112.39313.56482.84163.00731.09464.00241.79352.78343.31931.8083

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 106.216 S1 C4 H8 109.600
S1 C4 H9 109.600 S1 C5 H7 106.216
S1 C5 H10 109.600 S1 C5 H11 109.600
O2 S1 O3 121.030 O2 S1 C4 107.704
O2 S1 C5 107.704 O3 S1 C4 107.704
O3 S1 C5 107.704 C4 S1 C5 103.685
H6 C4 H8 109.957 H6 C4 H9 109.957
H7 C5 H10 109.957 H7 C5 H11 109.957
H8 C4 H9 111.376 H10 C5 H11 111.376
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability