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

using model chemistry: QCISD/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-627.335532
Energy at 298.15K 
HF Energy-626.432928
Nuclear repulsion energy268.959488
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/aug-cc-pVDZ
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 3081 1.09      
2 A1 3064 2968 3.26      
3 A1 1447 1402 2.71      
4 A1 1337 1295 9.22      
5 A1 1090 1055 133.90      
6 A1 995 964 5.24      
7 A1 676 655 5.38      
8 A1 450 436 25.95      
9 A1 261 253 2.41      
10 A2 3179 3080 0.00      
11 A2 1436 1391 0.00      
12 A2 929 899 0.00      
13 A2 283 275 0.00      
14 A2 168 163 0.00      
15 B1 3183 3083 2.43      
16 B1 1453 1408 8.02      
17 B1 1248 1209 222.97      
18 B1 978 948 0.00      
19 B1 340 329 0.57      
20 B1 199 193 0.29      
21 B2 3179 3080 0.20      
22 B2 3062 2966 0.07      
23 B2 1438 1393 5.34      
24 B2 1319 1278 5.88      
25 B2 942 913 45.67      
26 B2 742 719 29.13      
27 B2 433 420 40.16      

Unscaled Zero Point Vibrational Energy (zpe) 18506.4 cm-1
Scaled (by 0.9687) Zero Point Vibrational Energy (zpe) 17927.2 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/aug-cc-pVDZ
ABC
0.14582 0.13598 0.13453

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.186
O2 -1.296 0.000 0.928
O3 1.296 0.000 0.928
C4 0.000 1.420 -0.927
C5 0.000 -1.420 -0.927
H6 0.000 2.304 -0.272
H7 0.000 -2.304 -0.272
H8 0.914 1.388 -1.539
H9 -0.914 1.388 -1.539
H10 -0.914 -1.388 -1.539
H11 0.914 -1.388 -1.539

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.49361.49361.80371.80372.34942.34942.39522.39522.39522.3952
O21.49362.59292.67102.67102.90342.90343.59102.85612.85613.5910
O31.49362.59292.67102.67102.90342.90342.85613.59103.59102.8561
C41.80372.67102.67102.83931.10053.78101.10021.10023.01543.0154
C51.80372.67102.67102.83933.78101.10053.01543.01541.10021.1002
H62.34942.90342.90341.10053.78104.60861.81081.81084.00914.0091
H72.34942.90342.90343.78101.10054.60864.00914.00911.81081.8108
H82.39523.59102.85611.10023.01541.81084.00911.82713.32342.7761
H92.39522.85613.59101.10023.01541.81084.00911.82712.77613.3234
H102.39522.85613.59103.01541.10024.00911.81083.32342.77611.8271
H112.39523.59102.85613.01541.10024.00911.81082.77613.32341.8271

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 105.417 S1 C4 H8 108.707
S1 C4 H9 108.707 S1 C5 H7 105.417
S1 C5 H10 108.707 S1 C5 H11 108.707
O2 S1 O3 120.459 O2 S1 C4 107.836
O2 S1 C5 107.836 O3 S1 C4 107.836
O3 S1 C5 107.836 C4 S1 C5 103.826
H6 C4 H8 110.739 H6 C4 H9 110.739
H7 C5 H10 110.739 H7 C5 H11 110.739
H8 C4 H9 112.259 H10 C5 H11 112.259
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability