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

using model chemistry: wB97X-D/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-700.001520
Energy at 298.15K-700.009756
HF Energy-700.001520
Nuclear repulsion energy350.085838
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 wB97X-D/3-21G*
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 3208 3041 1.63      
2 A 3206 3039 15.67      
3 A 3176 3010 16.73      
4 A 3172 3006 13.80      
5 A 3095 2933 39.08      
6 A 3089 2928 4.63      
7 A 1588 1505 5.61      
8 A 1578 1495 17.52      
9 A 1572 1490 19.74      
10 A 1562 1480 5.18      
11 A 1490 1412 10.55      
12 A 1477 1400 0.30      
13 A 1218 1155 108.36      
14 A 1178 1117 0.35      
15 A 1176 1115 0.00      
16 A 1159 1099 5.16      
17 A 1158 1098 0.80      
18 A 1007 954 186.27      
19 A 972 921 163.89      
20 A 731 693 84.22      
21 A 719 682 217.76      
22 A 615 583 10.88      
23 A 489 463 1.50      
24 A 369 350 14.58      
25 A 292 277 15.68      
26 A 288 273 20.52      
27 A 236 223 1.52      
28 A 154 146 0.43      
29 A 127 120 4.02      
30 A 49 47 1.45      

Unscaled Zero Point Vibrational Energy (zpe) 20074.2 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 19026.3 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 wB97X-D/3-21G*
ABC
0.13265 0.08872 0.07446

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.009 0.667 -0.466
O2 -0.065 1.310 0.851
O3 -0.861 -0.769 -0.310
O4 1.418 -0.107 -0.621
C5 -2.217 -0.619 0.224
C6 1.871 -0.896 0.540
H7 -2.624 -1.627 0.307
H8 2.924 -1.109 0.367
H9 -2.205 -0.146 1.209
H10 -2.862 -0.032 -0.442
H11 1.748 -0.320 1.461
H12 1.297 -1.821 0.608

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.46721.67691.63052.64722.64383.56353.52872.87952.93762.78803.0085
O21.46722.51082.52522.95732.95213.93323.87632.61263.36092.51343.4239
O31.67692.51082.39371.46522.86382.05553.86052.12212.13623.18492.5705
O41.63052.52522.39373.76731.47574.41722.06174.05964.28442.11882.1133
C52.64722.95731.46523.76734.10941.08995.16671.09311.09754.16413.7339
C62.64382.95212.86381.47574.10944.55971.08874.19804.91011.09311.0905
H73.56353.93322.05554.41721.08994.55975.57281.78451.77794.70673.9374
H83.52873.87633.86052.06175.16671.08875.57285.28665.94091.78971.7927
H92.87952.61262.12214.05961.09314.19801.78455.28661.78123.96473.9287
H102.93763.36092.13624.28441.09754.91011.77795.94091.78124.99544.6476
H112.78802.51343.18492.11884.16411.09314.70671.78973.96474.99541.7848
H123.00853.42392.57052.11333.73391.09053.93741.79273.92874.64761.7848

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 114.639 S1 O4 C6 116.580
O2 S1 O3 105.792 O2 S1 O4 109.098
O3 S1 O4 92.717 O3 C5 H7 106.185
O3 C5 H9 111.259 O3 C5 H10 112.138
O4 C6 H8 106.031 O4 C6 H11 110.245
O4 C6 H12 109.963 H7 C5 H9 109.662
H7 C5 H10 108.732 H8 C6 H11 110.218
H8 C6 H12 110.694 H9 C5 H10 108.796
H11 C6 H12 109.639
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.073      
2 O -0.539      
3 O -0.547      
4 O -0.547      
5 C -0.432      
6 C -0.432      
7 H 0.221      
8 H 0.249      
9 H 0.241      
10 H 0.249      
11 H 0.241      
12 H 0.221      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 -2.645 0.738 2.746
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.137 -0.000 -0.000
y -0.000 -38.786 -3.378
z -0.000 -3.378 -46.838
Traceless
 xyz
x 4.675 -0.000 -0.000
y -0.000 3.702 -3.378
z -0.000 -3.378 -8.377
Polar
3z2-r2-16.753
x2-y20.649
xy-0.000
xz-0.000
yz-3.378


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.331 0.000 0.000
y 0.000 6.345 0.087
z 0.000 0.087 5.222


<r2> (average value of r2) Å2
<r2> 181.105
(<r2>)1/2 13.458