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

using model chemistry: B3LYP/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 B3LYP/6-31G**
 hartrees
Energy at 0K-703.622630
Energy at 298.15K-703.630456
Nuclear repulsion energy347.233918
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 B3LYP/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 3158 3034 4.46      
2 A 3157 3033 13.73      
3 A 3132 3009 19.11      
4 A 3129 3006 27.87      
5 A 3050 2930 61.10      
6 A 3046 2927 8.61      
7 A 1521 1461 1.55      
8 A 1512 1453 13.08      
9 A 1510 1451 8.43      
10 A 1498 1440 5.64      
11 A 1470 1412 2.05      
12 A 1460 1403 0.28      
13 A 1193 1147 63.37      
14 A 1187 1140 0.02      
15 A 1183 1137 50.64      
16 A 1168 1122 0.31      
17 A 1166 1121 9.80      
18 A 1021 981 187.50      
19 A 991 952 137.26      
20 A 675 648 88.38      
21 A 647 622 256.43      
22 A 590 567 12.81      
23 A 470 451 0.02      
24 A 332 319 11.41      
25 A 279 269 13.14      
26 A 272 261 10.92      
27 A 155 149 0.99      
28 A 105 101 0.09      
29 A 101 97 2.76      
30 A 51 49 1.04      

Unscaled Zero Point Vibrational Energy (zpe) 19614.3 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 18845.4 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 B3LYP/6-31G**
ABC
0.13525 0.08438 0.07204

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.000 -0.860 -0.320
O2 0.000 -1.054 1.146
O3 1.292 0.131 -0.693
O4 -1.293 0.131 -0.693
C5 1.781 1.041 0.311
C6 -1.781 1.041 0.312
H7 2.840 1.189 0.094
H8 -2.840 1.189 0.095
H9 1.255 1.999 0.245
H10 1.661 0.617 1.311
H11 -1.661 0.617 1.312
H12 -1.255 1.999 0.245

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.47831.67111.67122.68072.68073.52683.52693.17372.75742.75743.1736
O21.47832.54112.54112.87372.87393.76883.76893.42202.36222.36243.4224
O31.67112.54112.58501.44103.35902.03374.33802.09092.09553.60233.2955
O41.67122.54112.58503.35941.44094.33832.03373.29613.60292.09552.0909
C52.68072.87371.44103.35943.56201.09124.62871.09481.09283.60923.1848
C62.68072.87393.35901.44093.56204.62861.09123.18463.60961.09281.0949
H73.52683.76882.03374.33831.09124.62865.68041.78611.78834.69754.1776
H83.52693.76894.33802.03374.62871.09125.68044.17764.69791.78831.7861
H93.17373.42202.09093.29611.09483.18461.78614.17761.79223.39862.5108
H102.75742.36222.09553.60291.09283.60961.78834.69791.79223.32213.3994
H112.75742.36243.60232.09553.60921.09284.69751.78833.39863.32211.7923
H123.17363.42243.29552.09093.18481.09494.17761.78612.51083.39941.7923

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 118.757 S1 O4 C6 118.756
O2 S1 O3 107.417 O2 S1 O4 107.417
O3 S1 O4 101.323 O3 C5 H7 106.039
O3 C5 H9 110.341 O3 C5 H10 110.843
O4 C6 H8 106.041 O4 C6 H11 110.844
O4 C6 H12 110.341 H7 C5 H9 109.588
H7 C5 H10 109.933 H8 C6 H11 109.930
H8 C6 H12 109.586 H9 C5 H10 110.020
H11 C6 H12 110.022
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.104      
2 O -0.588      
3 O -0.545      
4 O -0.545      
5 C -0.112      
6 C -0.112      
7 H 0.136      
8 H 0.136      
9 H 0.117      
10 H 0.146      
11 H 0.146      
12 H 0.117      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.001 2.217 0.525 2.278
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.203 -0.000 -0.001
y -0.000 -40.117 3.466
z -0.001 3.466 -46.333
Traceless
 xyz
x 5.021 -0.000 -0.001
y -0.000 2.151 3.466
z -0.001 3.466 -7.173
Polar
3z2-r2-14.346
x2-y21.913
xy-0.000
xz-0.001
yz3.466


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.495 0.000 -0.002
y 0.000 7.104 -0.103
z -0.002 -0.103 6.087


<r2> (average value of r2) Å2
<r2> 185.719
(<r2>)1/2 13.628