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All results from a given calculation for C2H6O3S (Sulfurous acid, dimethyl ester)

using model chemistry: TPSSh/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at TPSSh/6-31G*
 hartrees
Energy at 0K-703.624447
Energy at 298.15K-703.632176
HF Energy-703.624447
Nuclear repulsion energy346.398148
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 TPSSh/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3190 3061 13.59      
2 A 3170 3042 13.92      
3 A 3168 3039 15.88      
4 A 3125 2999 28.00      
5 A 3079 2954 27.75      
6 A 3042 2919 57.03      
7 A 1547 1484 13.60      
8 A 1545 1482 4.91      
9 A 1530 1468 4.70      
10 A 1526 1464 6.46      
11 A 1488 1428 4.11      
12 A 1474 1415 1.21      
13 A 1200 1151 96.07      
14 A 1194 1145 1.83      
15 A 1187 1139 26.05      
16 A 1180 1132 5.08      
17 A 1172 1124 6.50      
18 A 1028 986 126.37      
19 A 989 949 202.04      
20 A 715 686 91.84      
21 A 652 626 207.07      
22 A 547 525 13.69      
23 A 442 424 2.72      
24 A 362 347 7.32      
25 A 269 258 5.44      
26 A 210 201 7.58      
27 A 147 141 3.64      
28 A 125 120 2.81      
29 A 91 87 4.23      
30 A 55 52 3.79      

Unscaled Zero Point Vibrational Energy (zpe) 19724.0 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 18923.2 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 TPSSh/6-31G*
ABC
0.15929 0.07764 0.06614

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.024 0.594 -0.483
O2 -0.058 1.388 0.751
O3 -0.892 -0.790 -0.192
O4 1.387 -0.183 -0.625
C5 -2.246 -0.588 0.240
C6 1.963 -0.797 0.552
H7 -2.682 -1.584 0.320
H8 2.957 -1.123 0.245
H9 -2.273 -0.086 1.211
H10 -2.815 -0.003 -0.494
H11 2.035 -0.067 1.362
H12 1.360 -1.653 0.863

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.46831.65841.61782.61782.63763.52843.51652.89612.85402.84232.9627
O21.46832.51582.54012.99222.98343.98833.95622.70023.33012.62073.3579
O31.65842.51582.39761.43582.95042.02453.88762.09132.10033.39112.6325
O41.61782.54012.39763.75651.44684.40612.02554.09614.20872.09242.0913
C52.61782.99221.43583.75654.22611.09065.23031.09371.09764.45563.8117
C62.63762.98342.95041.44684.22614.71721.08974.34594.95601.09271.0924
H73.52843.98832.02454.40611.09064.71725.65811.79061.78345.06284.0792
H83.51653.95623.88762.02555.23031.08975.65815.41855.92631.79261.7921
H92.89612.70022.09134.09611.09374.34591.79065.41851.79124.31023.9724
H102.85403.33012.10034.20871.09764.95601.78345.92631.79125.19324.6906
H112.84232.62073.39112.09244.45561.09275.06281.79264.31025.19321.7947
H122.96273.35792.63252.09133.81171.09244.07921.79213.97244.69061.7947

picture of Sulfurous acid, dimethyl ester state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 O3 C5 115.372 S1 O4 C6 118.681
O2 S1 O3 106.988 O2 S1 O4 110.699
O3 S1 O4 94.068 O3 C5 H7 105.699
O3 C5 H9 110.802 O3 C5 H10 111.304
O4 C6 H8 105.112 O4 C6 H11 110.190
O4 C6 H12 110.117 H7 C5 H9 110.122
H7 C5 H10 109.180 H8 C6 H11 110.445
H8 C6 H12 110.418 H9 C5 H10 109.657
H11 C6 H12 110.440
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.065      
2 O -0.564      
3 O -0.560      
4 O -0.518      
5 C -0.270      
6 C -0.276      
7 H 0.189      
8 H 0.191      
9 H 0.192      
10 H 0.166      
11 H 0.195      
12 H 0.191      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.706 -1.449 0.389 1.658
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.007 -0.041 0.045
y -0.041 6.976 0.112
z 0.045 0.112 5.994


<r2> (average value of r2) Å2
<r2> 192.424
(<r2>)1/2 13.872