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

using model chemistry: QCISD/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 QCISD/6-311+G(3df,2p)
 hartrees
Energy at 0K-627.600980
Energy at 298.15K 
HF Energy-626.555395
Nuclear repulsion energy276.367917
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/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 3034 1.03      
2 A1 3080 2938 1.84      
3 A1 1488 1419 2.75      
4 A1 1389 1324 20.58      
5 A1 1199 1144 157.39      
6 A1 1031 983 1.22      
7 A1 722 689 8.22      
8 A1 503 480 26.75      
9 A1 278 265 2.33      
10 A2 3186 3038 0.00      
11 A2 1475 1406 0.00      
12 A2 957 913 0.00      
13 A2 308 294 0.00      
14 A2 198 189 0.00      
15 B1 3190 3042 2.06      
16 B1 1493 1424 3.38      
17 B1 1390 1326 258.00      
18 B1 1015 968 0.97      
19 B1 369 352 0.53      
20 B1 231 220 0.36      
21 B2 3180 3032 0.34      
22 B2 3078 2936 0.02      
23 B2 1478 1409 5.18      
24 B2 1373 1310 15.14      
25 B2 965 921 69.56      
26 B2 782 746 30.51      
27 B2 471 449 38.02      

Unscaled Zero Point Vibrational Energy (zpe) 19003.7 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 18123.9 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/6-311+G(3df,2p)
ABC
0.15485 0.14391 0.14014

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/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 -1.245 0.000 0.904
O3 1.245 0.000 0.904
C4 0.000 1.389 -0.907
C5 0.000 -1.389 -0.907
H6 0.000 2.272 -0.270
H7 0.000 -2.272 -0.270
H8 0.900 1.369 -1.517
H9 -0.900 1.369 -1.517
H10 -0.900 -1.369 -1.517
H11 0.900 -1.369 -1.517

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.43611.43611.76921.76922.31792.31792.36532.36532.36532.3653
O21.43612.49022.60002.60002.84452.84453.51282.80322.80323.5128
O31.43612.49022.60002.60002.84452.84452.80323.51283.51282.8032
C41.76922.60002.60002.77861.08883.71651.08771.08772.96492.9649
C51.76922.60002.60002.77863.71651.08882.96492.96491.08771.0877
H62.31792.84452.84451.08883.71654.54441.78411.78413.95283.9528
H72.31792.84452.84453.71651.08884.54443.95283.95281.78411.7841
H82.36533.51282.80321.08772.96491.78413.95281.79983.27642.7378
H92.36532.80323.51281.08772.96491.78413.95281.79982.73783.2764
H102.36532.80323.51282.96491.08773.95281.78413.27642.73781.7998
H112.36533.51282.80322.96491.08773.95281.78412.73783.27641.7998

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 105.926 S1 C4 H8 109.445
S1 C4 H9 109.445 S1 C5 H7 105.926
S1 C5 H10 109.445 S1 C5 H11 109.445
O2 S1 O3 120.227 O2 S1 C4 107.970
O2 S1 C5 107.970 O3 S1 C4 107.970
O3 S1 C5 107.970 C4 S1 C5 103.489
H6 C4 H8 110.106 H6 C4 H9 110.106
H7 C5 H10 110.106 H7 C5 H11 110.106
H8 C4 H9 111.647 H10 C5 H11 111.647
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability