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

using model chemistry: B1B95/CEP-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 B1B95/CEP-31G*
 hartrees
Energy at 0K-72.827712
Energy at 298.15K-72.835671
Nuclear repulsion energy147.890378
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 B1B95/CEP-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 3197 3060 20.17      
2 A 3181 3045 22.60      
3 A 3180 3044 17.63      
4 A 3142 3008 37.40      
5 A 3087 2955 36.83      
6 A 3055 2924 65.60      
7 A 1500 1436 15.66      
8 A 1499 1434 8.79      
9 A 1489 1425 9.08      
10 A 1483 1419 6.90      
11 A 1465 1403 0.40      
12 A 1463 1400 0.45      
13 A 1206 1154 147.16      
14 A 1183 1133 9.43      
15 A 1178 1128 3.69      
16 A 1170 1120 3.04      
17 A 1167 1117 1.21      
18 A 1075 1029 128.78      
19 A 1040 996 226.15      
20 A 742 710 105.58      
21 A 685 656 224.81      
22 A 564 540 16.20      
23 A 451 432 3.77      
24 A 376 360 8.29      
25 A 281 269 6.42      
26 A 224 214 6.89      
27 A 173 166 5.15      
28 A 148 142 0.08      
29 A 100 96 6.78      
30 A 74 71 4.37      

Unscaled Zero Point Vibrational Energy (zpe) 19787.5 cm-1
Scaled (by 0.9572) Zero Point Vibrational Energy (zpe) 18940.6 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 B1B95/CEP-31G*
ABC
0.16392 0.07694 0.06599

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.026 0.588 -0.499
O2 -0.047 1.371 0.758
O3 -0.903 -0.819 -0.191
O4 1.407 -0.199 -0.638
C5 -2.243 -0.554 0.248
C6 1.949 -0.772 0.571
H7 -2.717 -1.536 0.380
H8 2.974 -1.071 0.317
H9 -2.247 -0.007 1.204
H10 -2.809 0.019 -0.509
H11 1.964 -0.025 1.380
H12 1.358 -1.650 0.874

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.48161.68631.64132.60242.62623.53923.52472.86112.84042.80482.9681
O21.48162.53592.55532.96432.93423.96583.91002.63403.32632.52523.3336
O31.68632.53592.43331.43442.95212.03263.91832.10022.10703.36362.6335
O41.64132.55532.43333.77241.44384.45372.03194.09664.22412.10072.0957
C52.60242.96431.43443.77244.20951.09925.24301.10181.10554.38783.8158
C62.62622.93422.95211.44384.20954.73221.09844.31134.94291.10081.1002
H73.53923.96582.03264.45371.09924.73225.71091.79991.79405.01944.1071
H83.52473.91003.91832.03195.24301.09845.71095.40185.94321.80211.8044
H92.86112.63402.10024.09661.10184.31131.79995.40181.80354.21393.9754
H102.84043.32632.10704.22411.10554.94291.79405.94321.80355.13324.6976
H112.80482.52523.36362.10074.38781.10085.01941.80214.21395.13321.8062
H122.96813.33362.63352.09573.81581.10024.10711.80443.97544.69761.8062

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 112.760 S1 O4 C6 116.549
O2 S1 O3 106.173 O2 S1 O4 109.715
O3 S1 O4 93.973 O3 C5 H7 105.936
O3 C5 H9 111.136 O3 C5 H10 111.450
O4 C6 H8 105.315 O4 C6 H11 110.564
O4 C6 H12 110.200 H7 C5 H9 109.727
H7 C5 H10 108.924 H8 C6 H11 110.057
H8 C6 H12 110.312 H9 C5 H10 109.580
H11 C6 H12 110.290
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.540      
2 O -0.379      
3 O -0.269      
4 O -0.236      
5 C -0.432      
6 C -0.438      
7 H 0.214      
8 H 0.211      
9 H 0.206      
10 H 0.172      
11 H 0.210      
12 H 0.202      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.798 -1.483 0.253 1.703
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.023 -0.757 1.987
y -0.757 -44.044 -3.912
z 1.987 -3.912 -42.736
Traceless
 xyz
x 10.367 -0.757 1.987
y -0.757 -6.165 -3.912
z 1.987 -3.912 -4.202
Polar
3z2-r2-8.404
x2-y211.021
xy-0.757
xz1.987
yz-3.912


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.524 0.026 -0.019
y 0.026 6.837 0.184
z -0.019 0.184 5.940


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000