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

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-699.947871
Energy at 298.15K-699.955907
Nuclear repulsion energy347.523865
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 B3PW91/3-21G*
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 3179 3050 2.42      
2 A 3177 3048 15.95      
3 A 3147 3019 17.49      
4 A 3145 3018 13.85      
5 A 3067 2942 42.71      
6 A 3063 2939 8.18      
7 A 1573 1509 0.17      
8 A 1562 1498 20.92      
9 A 1556 1493 20.92      
10 A 1545 1482 2.38      
11 A 1473 1413 9.01      
12 A 1461 1401 0.21      
13 A 1194 1146 98.62      
14 A 1163 1116 1.15      
15 A 1161 1114 0.75      
16 A 1141 1094 0.58      
17 A 1139 1093 4.27      
18 A 980 940 150.97      
19 A 951 912 149.44      
20 A 704 676 81.07      
21 A 695 667 221.43      
22 A 592 568 9.49      
23 A 479 460 0.38      
24 A 340 326 14.23      
25 A 292 280 20.19      
26 A 286 275 13.66      
27 A 168 161 0.19      
28 A 133 127 0.24      
29 A 115 110 3.87      
30 A 79 75 1.39      

Unscaled Zero Point Vibrational Energy (zpe) 19778.3 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 18975.3 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 B3PW91/3-21G*
ABC
0.13471 0.08483 0.07295

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.000 -0.881 -0.280
O2 0.000 -0.955 1.198
O3 1.286 0.069 -0.709
O4 -1.286 0.068 -0.709
C5 1.767 1.069 0.272
C6 -1.767 1.069 0.272
H7 2.847 1.133 0.130
H8 -2.846 1.134 0.130
H9 1.303 2.040 0.073
H10 1.530 0.733 1.286
H11 -1.530 0.733 1.286
H12 -1.302 2.040 0.073

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.48021.65521.65512.68962.68963.51143.51163.21802.72032.72063.2177
O21.48022.51722.51722.84182.84203.68803.68853.45392.27962.28023.4537
O31.65522.51722.57181.48183.35932.06724.34892.12052.11633.51443.3458
O41.65512.51722.57183.35961.48184.34922.06713.34663.51422.11632.1205
C52.68962.84181.48183.35963.53451.09054.61641.09421.09363.46633.2256
C62.68962.84203.35931.48183.53454.61641.09053.22603.46601.09361.0942
H73.51143.68802.06724.34921.09054.61645.69301.79111.79664.54464.2472
H83.51163.68854.34892.06714.61641.09055.69304.24754.54441.79661.7911
H93.21803.45392.12053.34661.09423.22601.79114.24751.79723.34752.6053
H102.72032.27962.11633.51421.09363.46601.79664.54441.79723.06073.3470
H112.72062.28023.51442.11633.46631.09364.54461.79663.34753.06071.7972
H123.21773.45373.34582.12053.22561.09424.24721.79112.60533.34701.7972

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 117.944 S1 O4 C6 117.948
O2 S1 O3 106.671 O2 S1 O4 106.674
O3 S1 O4 101.956 O3 C5 H7 105.952
O3 C5 H9 109.896 O3 C5 H10 109.597
O4 C6 H8 105.947 O4 C6 H11 109.598
O4 C6 H12 109.895 H7 C5 H9 110.140
H7 C5 H10 110.690 H8 C6 H11 110.692
H8 C6 H12 110.144 H9 C5 H10 110.468
H11 C6 H12 110.466
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.039      
2 O -0.523      
3 O -0.527      
4 O -0.527      
5 C -0.442      
6 C -0.442      
7 H 0.247      
8 H 0.247      
9 H 0.223      
10 H 0.241      
11 H 0.241      
12 H 0.223      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.000 2.468 0.786 2.591
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.944 -0.001 -0.000
y -0.001 -38.995 3.203
z -0.000 3.203 -46.819
Traceless
 xyz
x 4.962 -0.001 -0.000
y -0.001 3.387 3.203
z -0.000 3.203 -8.349
Polar
3z2-r2-16.698
x2-y21.050
xy-0.001
xz-0.000
yz3.203


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> 184.482
(<r2>)1/2 13.582