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

using model chemistry: B1B95/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-628.392227
Energy at 298.15K 
HF Energy-628.392227
Nuclear repulsion energy275.369277
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 B1B95/6-31G(2df,p)
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 3195 3060 0.58      
2 A1 3082 2952 0.97      
3 A1 1450 1389 1.36      
4 A1 1335 1279 26.91      
5 A1 1188 1138 137.38      
6 A1 996 953 4.14      
7 A1 690 661 10.04      
8 A1 487 466 22.02      
9 A1 265 254 2.57      
10 A2 3198 3063 0.00      
11 A2 1435 1375 0.00      
12 A2 911 873 0.00      
13 A2 284 272 0.00      
14 A2 174 166 0.00      
15 B1 3202 3067 2.23      
16 B1 1456 1395 0.29      
17 B1 1394 1335 211.53      
18 B1 973 932 2.37      
19 B1 345 331 0.10      
20 B1 207 198 0.44      
21 B2 3193 3058 0.73      
22 B2 3080 2950 0.16      
23 B2 1440 1379 5.37      
24 B2 1317 1262 14.44      
25 B2 930 891 81.30      
26 B2 743 712 33.42      
27 B2 449 430 30.14      

Unscaled Zero Point Vibrational Energy (zpe) 18710.3 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 17918.8 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 B1B95/6-31G(2df,p)
ABC
0.15378 0.14261 0.13901

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.192
O2 -1.250 0.000 0.905
O3 1.250 0.000 0.905
C4 0.000 1.396 -0.911
C5 0.000 -1.396 -0.911
H6 0.000 2.276 -0.268
H7 0.000 -2.276 -0.268
H8 0.901 1.380 -1.522
H9 -0.901 1.380 -1.522
H10 -0.901 -1.380 -1.522
H11 0.901 -1.380 -1.522

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.43971.43971.77921.77922.32232.32232.37802.37802.37802.3780
O21.43972.50062.61002.61002.84982.84983.52522.81462.81463.5252
O31.43972.50062.61002.61002.84982.84982.81463.52523.52522.8146
C41.77922.61002.61002.79291.09003.72871.08891.08892.98262.9826
C51.77922.61002.61002.79293.72871.09002.98262.98261.08891.0889
H62.32232.84982.84981.09003.72874.55281.78571.78573.96963.9696
H72.32232.84982.84983.72871.09004.55283.96963.96961.78571.7857
H82.37803.52522.81461.08892.98261.78573.96961.80153.29642.7607
H92.37802.81463.52521.08892.98261.78573.96961.80152.76073.2964
H102.37802.81463.52522.98261.08893.96961.78573.29642.76071.8015
H112.37803.52522.81462.98261.08893.96961.78572.76073.29641.8015

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 105.545 S1 C4 H8 109.661
S1 C4 H9 109.661 S1 C5 H7 105.545
S1 C5 H10 109.661 S1 C5 H11 109.661
O2 S1 O3 120.559 O2 S1 C4 107.891
O2 S1 C5 107.891 O3 S1 C4 107.891
O3 S1 C5 107.891 C4 S1 C5 103.418
H6 C4 H8 110.086 H6 C4 H9 110.086
H7 C5 H10 110.086 H7 C5 H11 110.086
H8 C4 H9 111.623 H10 C5 H11 111.623
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.491      
2 O -0.291      
3 O -0.291      
4 C -0.484      
5 C -0.484      
6 H 0.192      
7 H 0.192      
8 H 0.169      
9 H 0.169      
10 H 0.169      
11 H 0.169      


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 -4.266 4.266
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.501 0.000 0.000
y 0.000 -31.111 0.000
z 0.000 0.000 -37.194
Traceless
 xyz
x -7.348 0.000 0.000
y 0.000 8.236 0.000
z 0.000 0.000 -0.888
Polar
3z2-r2-1.776
x2-y2-10.390
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.371 0.000 0.000
y 0.000 7.088 0.000
z 0.000 0.000 6.555


<r2> (average value of r2) Å2
<r2> 125.578
(<r2>)1/2 11.206