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

using model chemistry: QCISD/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/6-31+G**
 hartrees
Energy at 0K-627.256442
Energy at 298.15K 
HF Energy-626.405634
Nuclear repulsion energy271.961216
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/6-31+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 3241 3064 0.82      
2 A1 3127 2957 2.83      
3 A1 1506 1423 3.26      
4 A1 1419 1341 8.05      
5 A1 1144 1081 167.48      
6 A1 1042 985 6.29      
7 A1 704 666 6.56      
8 A1 476 450 30.42      
9 A1 272 257 2.21      
10 A2 3240 3063 0.00      
11 A2 1494 1413 0.00      
12 A2 982 928 0.00      
13 A2 296 280 0.00      
14 A2 197 187 0.00      
15 B1 3243 3066 2.57      
16 B1 1509 1427 10.60      
17 B1 1313 1242 261.89      
18 B1 1036 979 0.00      
19 B1 359 340 1.97      
20 B1 228 216 0.34      
21 B2 3240 3063 0.26      
22 B2 3125 2954 0.18      
23 B2 1498 1416 5.87      
24 B2 1400 1324 9.10      
25 B2 990 936 49.88      
26 B2 783 740 42.91      
27 B2 451 426 43.87      

Unscaled Zero Point Vibrational Energy (zpe) 19157.1 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 18111.1 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 QCISD/6-31+G**
ABC
0.14955 0.13866 0.13701

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.187
O2 -1.279 0.000 0.915
O3 1.279 0.000 0.915
C4 0.000 1.409 -0.915
C5 0.000 -1.409 -0.915
H6 0.000 2.291 -0.278
H7 0.000 -2.291 -0.278
H8 0.900 1.386 -1.526
H9 -0.900 1.386 -1.526
H10 -0.900 -1.386 -1.526
H11 0.900 -1.386 -1.526

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.47191.47191.78871.78872.33792.33792.38082.38082.38082.3808
O21.47192.55882.64022.64022.88272.88273.55412.83302.83303.5541
O31.47192.55882.64022.64022.88272.88272.83303.55413.55412.8330
C41.78872.64022.64022.81711.08833.75401.08801.08802.99922.9992
C51.78872.64022.64022.81713.75401.08832.99922.99921.08801.0880
H62.33792.88272.88271.08833.75404.58211.78491.78493.98633.9863
H72.33792.88272.88273.75401.08834.58213.98633.98631.78491.7849
H82.38083.55412.83301.08802.99921.78493.98631.79983.30572.7728
H92.38082.83303.55411.08802.99921.78493.98631.79982.77283.3057
H102.38082.83303.55412.99921.08803.98631.78493.30572.77281.7998
H112.38083.55412.83302.99921.08803.98631.78492.77283.30571.7998

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 106.134 S1 C4 H8 109.279
S1 C4 H9 109.279 S1 C5 H7 106.134
S1 C5 H10 109.279 S1 C5 H11 109.279
O2 S1 O3 120.739 O2 S1 C4 107.742
O2 S1 C5 107.742 O3 S1 C4 107.742
O3 S1 C5 107.742 C4 S1 C5 103.899
H6 C4 H8 110.193 H6 C4 H9 110.193
H7 C5 H10 110.193 H7 C5 H11 110.193
H8 C4 H9 111.605 H10 C5 H11 111.605
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability