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

using model chemistry: mPW1PW91/cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/cc-pV(T+d)Z
 hartrees
Energy at 0K-628.521214
Energy at 298.15K 
HF Energy-628.521214
Nuclear repulsion energy276.152932
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 mPW1PW91/cc-pV(T+d)Z
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 3180 3046 0.69      
2 A1 3080 2950 1.21      
3 A1 1459 1397 3.08      
4 A1 1351 1294 31.14      
5 A1 1202 1152 152.31      
6 A1 1010 968 3.70      
7 A1 696 667 11.78      
8 A1 500 479 24.26      
9 A1 272 261 2.75      
10 A2 3187 3053 0.00      
11 A2 1446 1386 0.00      
12 A2 931 891 0.00      
13 A2 299 287 0.00      
14 A2 184 176 0.00      
15 B1 3191 3057 1.80      
16 B1 1466 1404 0.72      
17 B1 1401 1342 243.83      
18 B1 991 949 1.77      
19 B1 362 347 0.24      
20 B1 217 208 0.53      
21 B2 3179 3045 0.75      
22 B2 3077 2948 0.28      
23 B2 1448 1387 5.56      
24 B2 1334 1278 20.61      
25 B2 943 904 84.44      
26 B2 753 722 38.80      
27 B2 464 444 34.00      

Unscaled Zero Point Vibrational Energy (zpe) 18810.7 cm-1
Scaled (by 0.9579) Zero Point Vibrational Energy (zpe) 18018.8 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 mPW1PW91/cc-pV(T+d)Z
ABC
0.15511 0.14323 0.13958

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pV(T+d)Z

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.188
O2 -1.244 0.000 0.903
O3 1.244 0.000 0.903
C4 0.000 1.396 -0.906
C5 0.000 -1.396 -0.906
H6 0.000 2.272 -0.261
H7 0.000 -2.272 -0.261
H8 0.899 1.384 -1.516
H9 -0.899 1.384 -1.516
H10 -0.899 -1.384 -1.516
H11 0.899 -1.384 -1.516

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.43531.43531.77361.77362.31612.31612.37242.37242.37242.3724
O21.43532.48882.60202.60202.84012.84013.51632.80842.80843.5163
O31.43532.48882.60202.60202.84012.84012.80843.51633.51632.8084
C41.77362.60202.60202.79191.08833.72451.08691.08692.98462.9846
C51.77362.60202.60202.79193.72451.08832.98462.98461.08691.0869
H62.31612.84012.84011.08833.72454.54441.78171.78173.96883.9688
H72.31612.84012.84013.72451.08834.54443.96883.96881.78171.7817
H82.37243.51632.80841.08692.98461.78173.96881.79903.30082.7675
H92.37242.80843.51631.08692.98461.78173.96881.79902.76753.3008
H102.37242.80843.51632.98461.08693.96881.78173.30082.76751.7990
H112.37243.51632.80842.98461.08693.96881.78172.76753.30081.7990

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 105.538 S1 C4 H8 109.719
S1 C4 H9 109.719 S1 C5 H7 105.538
S1 C5 H10 109.719 S1 C5 H11 109.719
O2 S1 O3 120.231 O2 S1 C4 107.900
O2 S1 C5 107.900 O3 S1 C4 107.900
O3 S1 C5 107.900 C4 S1 C5 103.822
H6 C4 H8 109.994 H6 C4 H9 109.994
H7 C5 H10 109.994 H7 C5 H11 109.994
H8 C4 H9 111.694 H10 C5 H11 111.694
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.774      
2 O -0.457      
3 O -0.457      
4 C -0.261      
5 C -0.261      
6 H 0.121      
7 H 0.121      
8 H 0.105      
9 H 0.105      
10 H 0.105      
11 H 0.105      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -4.404 4.404
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.346 0.000 0.000
y 0.000 -31.469 0.000
z 0.000 0.000 -37.835
Traceless
 xyz
x -7.694 0.000 0.000
y 0.000 8.622 0.000
z 0.000 0.000 -0.928
Polar
3z2-r2-1.857
x2-y2-10.877
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.813 0.000 0.000
y 0.000 7.627 0.000
z 0.000 0.000 6.981


<r2> (average value of r2) Å2
<r2> 125.427
(<r2>)1/2 11.199