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

using model chemistry: HF/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 HF/6-31G*
 hartrees
Energy at 0K-701.239852
Energy at 298.15K-701.248205
HF Energy-701.239852
Nuclear repulsion energy354.315579
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 HF/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 3362 3021 15.60      
2 A 3356 3015 20.79      
3 A 3352 3012 18.25      
4 A 3314 2978 30.30      
5 A 3263 2932 31.71      
6 A 3226 2898 50.07      
7 A 1658 1490 10.85      
8 A 1657 1489 5.27      
9 A 1645 1478 4.31      
10 A 1643 1476 4.72      
11 A 1624 1459 3.56      
12 A 1614 1450 1.47      
13 A 1329 1194 172.60      
14 A 1321 1187 15.62      
15 A 1311 1178 36.72      
16 A 1293 1162 3.74      
17 A 1289 1158 2.29      
18 A 1165 1047 173.82      
19 A 1130 1016 472.28      
20 A 844 759 84.71      
21 A 817 734 240.49      
22 A 643 578 22.60      
23 A 514 462 5.00      
24 A 438 393 17.73      
25 A 310 278 6.87      
26 A 248 223 9.45      
27 A 173 155 6.33      
28 A 144 129 4.75      
29 A 90 81 4.88      
30 A 74 66 4.17      

Unscaled Zero Point Vibrational Energy (zpe) 21422.8 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 19248.4 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 HF/6-31G*
ABC
0.17257 0.07892 0.06770

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.029 0.581 -0.477
O2 -0.041 1.334 0.752
O3 -0.890 -0.763 -0.195
O4 1.362 -0.169 -0.614
C5 -2.226 -0.569 0.242
C6 1.955 -0.781 0.534
H7 -2.663 -1.553 0.304
H8 2.934 -1.097 0.213
H9 -2.242 -0.090 1.210
H10 -2.784 0.027 -0.473
H11 2.034 -0.065 1.337
H12 1.368 -1.633 0.842

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.44191.62061.58582.58162.60973.47863.47392.86272.81002.82262.9306
O21.44192.45302.46832.94192.91603.92553.87952.66143.27622.57063.2856
O31.62062.45302.36641.41882.93692.00413.86022.06312.07023.37502.6324
O41.58582.46832.36643.71001.42944.35402.00384.04004.15252.06632.0641
C52.58162.94191.41883.71004.19601.07865.18681.08001.08474.42773.7954
C62.60972.91602.93691.42944.19604.68731.07814.30674.91091.07891.0792
H73.47863.92552.00414.35401.07864.68735.61611.77121.76435.03464.0671
H83.47393.87953.86022.00385.18681.07815.61615.36675.86711.77161.7708
H92.86272.66142.06314.04001.08004.30671.77125.36671.77174.27883.9431
H102.81003.27622.07024.15251.08474.91091.76435.86711.77175.14794.6599
H112.82262.57063.37502.06634.42771.07895.03461.77164.27885.14791.7744
H122.93063.28562.63242.06413.79541.07924.06711.77083.94314.65991.7744

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 116.126 S1 O4 C6 119.796
O2 S1 O3 106.294 O2 S1 O4 109.132
O3 S1 O4 95.118 O3 C5 H7 105.923
O3 C5 H9 110.570 O3 C5 H10 110.857
O4 C6 H8 105.230 O4 C6 H11 110.151
O4 C6 H12 109.944 H7 C5 H9 110.278
H7 C5 H10 109.283 H8 C6 H11 110.439
H8 C6 H12 110.335 H9 C5 H10 109.860
H11 C6 H12 110.614
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.367      
2 O -0.733      
3 O -0.712      
4 O -0.672      
5 C -0.201      
6 C -0.206      
7 H 0.196      
8 H 0.195      
9 H 0.201      
10 H 0.168      
11 H 0.205      
12 H 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.851 -1.897 0.060 2.080
CHELPG -0.892 -1.829 -0.001 2.035
AIM        
ESP -0.918 -1.877 0.032 2.090


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.279 -0.807 1.949
y -0.807 -45.304 -4.316
z 1.949 -4.316 -44.076
Traceless
 xyz
x 11.411 -0.807 1.949
y -0.807 -6.627 -4.316
z 1.949 -4.316 -4.784
Polar
3z2-r2-9.569
x2-y212.025
xy-0.807
xz1.949
yz-4.316


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.686 0.018 0.003
y 0.018 6.163 0.158
z 0.003 0.158 5.434


<r2> (average value of r2) Å2
<r2> 188.153
(<r2>)1/2 13.717