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

using model chemistry: CCSD/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-627.612083
Energy at 298.15K 
HF Energy-626.569838
Nuclear repulsion energy276.439462
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/Def2TZVPP
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 3187 3187 0.91      
2 A1 3086 3086 1.59      
3 A1 1483 1483 2.53      
4 A1 1383 1383 24.83      
5 A1 1211 1211 161.76      
6 A1 1026 1026 2.18      
7 A1 719 719 10.01      
8 A1 508 508 28.66      
9 A1 275 275 2.26      
10 A2 3191 3191 0.00      
11 A2 1468 1468 0.00      
12 A2 947 947 0.00      
13 A2 306 306 0.00      
14 A2 191 191 0.00      
15 B1 3195 3195 2.33      
16 B1 1485 1485 1.11      
17 B1 1408 1408 256.51      
18 B1 1008 1008 1.18      
19 B1 369 369 0.63      
20 B1 227 227 0.40      
21 B2 3185 3185 0.24      
22 B2 3084 3084 0.06      
23 B2 1473 1473 4.76      
24 B2 1367 1367 16.23      
25 B2 961 961 77.73      
26 B2 776 776 33.65      
27 B2 473 473 40.45      

Unscaled Zero Point Vibrational Energy (zpe) 18995.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18995.5 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/Def2TZVPP
ABC
0.15492 0.14400 0.14009

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.189
O2 -1.244 0.000 0.904
O3 1.244 0.000 0.904
C4 0.000 1.389 -0.907
C5 0.000 -1.389 -0.907
H6 0.000 2.270 -0.268
H7 0.000 -2.270 -0.268
H8 0.899 1.371 -1.518
H9 -0.899 1.371 -1.518
H10 -0.899 -1.371 -1.518
H11 0.899 -1.371 -1.518

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.43511.43511.76991.76992.31522.31522.36682.36682.36682.3668
O21.43512.48822.60012.60012.84142.84143.51282.80472.80473.5128
O31.43512.48822.60012.60012.84142.84142.80473.51283.51282.8047
C41.76992.60012.60012.77881.08793.71451.08681.08682.96662.9666
C51.76992.60012.60012.77883.71451.08792.96662.96661.08681.0868
H62.31522.84142.84141.08793.71454.53931.78261.78263.95283.9528
H72.31522.84142.84143.71451.08794.53933.95283.95281.78261.7826
H82.36683.51282.80471.08682.96661.78263.95281.79783.27882.7420
H92.36682.80473.51281.08682.96661.78263.95281.79782.74203.2788
H102.36682.80473.51282.96661.08683.95281.78263.27882.74201.7978
H112.36683.51282.80472.96661.08683.95281.78262.74203.27881.7978

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 105.733 S1 C4 H8 109.557
S1 C4 H9 109.557 S1 C5 H7 105.733
S1 C5 H10 109.557 S1 C5 H11 109.557
O2 S1 O3 120.210 O2 S1 C4 107.984
O2 S1 C5 107.984 O3 S1 C4 107.984
O3 S1 C5 107.984 C4 S1 C5 103.444
H6 C4 H8 110.111 H6 C4 H9 110.111
H7 C5 H10 110.111 H7 C5 H11 110.111
H8 C4 H9 111.601 H10 C5 H11 111.601
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability