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

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-703.455496
Energy at 298.15K-703.463416
Nuclear repulsion energy348.924110
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 B3PW91/6-31G**
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 3170 3038 3.67      
2 A 3169 3037 14.20      
3 A 3144 3013 19.23      
4 A 3142 3011 22.12      
5 A 3056 2929 61.32      
6 A 3053 2926 11.59      
7 A 1516 1453 1.96      
8 A 1507 1444 9.68      
9 A 1506 1444 14.70      
10 A 1495 1433 5.67      
11 A 1465 1404 2.68      
12 A 1455 1394 0.00      
13 A 1209 1159 122.38      
14 A 1187 1137 2.99      
15 A 1186 1137 0.01      
16 A 1168 1119 0.09      
17 A 1167 1118 3.47      
18 A 1046 1002 185.30      
19 A 1016 974 138.98      
20 A 689 660 91.95      
21 A 667 639 259.49      
22 A 600 575 11.35      
23 A 475 455 0.17      
24 A 336 322 11.69      
25 A 283 271 14.16      
26 A 275 264 11.63      
27 A 163 156 0.54      
28 A 120 115 0.13      
29 A 103 99 3.12      
30 A 53 51 0.94      

Unscaled Zero Point Vibrational Energy (zpe) 19709.0 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 18889.1 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 B3PW91/6-31G**
ABC
0.13688 0.08511 0.07291

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 -0.855 -0.318
O2 -0.000 -1.040 1.145
O3 1.286 0.128 -0.692
O4 -1.285 0.129 -0.692
C5 1.772 1.033 0.308
C6 -1.773 1.033 0.308
H7 2.838 1.161 0.111
H8 -2.838 1.160 0.110
H9 1.266 2.000 0.225
H10 1.627 0.620 1.310
H11 -1.628 0.619 1.310
H12 -1.267 2.000 0.226

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.47441.66131.66142.66412.66423.50713.50703.17032.73422.73403.1709
O21.47442.52842.52842.85322.85283.73753.73703.41992.33112.33053.4197
O31.66132.52842.57111.43373.34252.02944.32612.08472.08973.56953.2962
O41.66142.52842.57113.34141.43364.32522.02943.29423.56872.08972.0847
C52.66412.85321.43373.34143.54451.09134.61611.09481.09343.56903.1902
C62.66422.85283.34251.43363.54454.61611.09133.18983.56861.09341.0948
H73.50713.73752.02944.32521.09134.61615.67581.78561.78774.65594.1912
H83.50703.73704.32612.02944.61611.09135.67584.19074.65551.78771.7856
H93.17033.41992.08473.29421.09483.18981.78564.19071.79283.38562.5328
H102.73422.33112.08973.56871.09343.56861.78774.65551.79283.25593.3851
H112.73402.33053.56952.08973.56901.09344.65591.78773.38563.25591.7927
H123.17093.41973.29622.08473.19021.09484.19121.78562.53283.38511.7927

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 118.624 S1 O4 C6 118.628
O2 S1 O3 107.327 O2 S1 O4 107.323
O3 S1 O4 101.393 O3 C5 H7 106.181
O3 C5 H9 110.359 O3 C5 H10 110.848
O4 C6 H8 106.184 O4 C6 H11 110.850
O4 C6 H12 110.359 H7 C5 H9 109.529
H7 C5 H10 109.823 H8 C6 H11 109.822
H8 C6 H12 109.527 H9 C5 H10 110.026
H11 C6 H12 110.023
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.113      
2 O -0.592      
3 O -0.547      
4 O -0.547      
5 C -0.179      
6 C -0.179      
7 H 0.159      
8 H 0.159      
9 H 0.139      
10 H 0.168      
11 H 0.168      
12 H 0.139      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.001 2.246 0.540 2.310
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.952 0.002 0.001
y 0.002 -39.957 3.417
z 0.001 3.417 -46.164
Traceless
 xyz
x 5.108 0.002 0.001
y 0.002 2.101 3.417
z 0.001 3.417 -7.209
Polar
3z2-r2-14.418
x2-y22.004
xy0.002
xz0.001
yz3.417


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


<r2> (average value of r2) Å2
<r2> 183.931
(<r2>)1/2 13.562