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

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/6-31G*
 hartrees
Energy at 0K-703.168134
Energy at 298.15K 
HF Energy-702.841550
Nuclear repulsion energy347.259064
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 B2PLYP=FULLultrafine/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 3223 3058 11.14      
2 A 3206 3041 10.86      
3 A 3203 3039 11.56      
4 A 3163 3000 22.87      
5 A 3112 2952 25.47      
6 A 3076 2918 48.68      
7 A 1556 1476 14.10      
8 A 1555 1475 5.56      
9 A 1540 1461 5.61      
10 A 1535 1456 6.78      
11 A 1504 1427 3.31      
12 A 1491 1414 0.93      
13 A 1212 1150 67.44      
14 A 1209 1147 2.89      
15 A 1200 1139 47.33      
16 A 1195 1134 7.31      
17 A 1187 1127 8.40      
18 A 1048 994 132.06      
19 A 1011 959 231.64      
20 A 728 691 96.10      
21 A 672 637 214.18      
22 A 559 530 15.34      
23 A 451 428 3.10      
24 A 373 354 8.08      
25 A 285 270 5.65      
26 A 223 211 7.64      
27 A 158 150 3.74      
28 A 132 125 4.31      
29 A 82 78 3.78      
30 A 64 61 3.29      

Unscaled Zero Point Vibrational Energy (zpe) 19974.5 cm-1
Scaled (by 0.9487) Zero Point Vibrational Energy (zpe) 18949.8 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 B2PLYP=FULLultrafine/6-31G*
ABC
0.16016 0.07808 0.06628

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.025 0.595 -0.482
O2 -0.058 1.381 0.755
O3 -0.887 -0.789 -0.196
O4 1.386 -0.178 -0.624
C5 -2.239 -0.587 0.239
C6 1.956 -0.797 0.550
H7 -2.678 -1.580 0.315
H8 2.950 -1.121 0.249
H9 -2.265 -0.091 1.211
H10 -2.808 0.002 -0.489
H11 2.023 -0.075 1.365
H12 1.354 -1.655 0.853

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.46641.65501.61512.61072.63233.52183.51162.89062.84522.83812.9574
O21.46642.50962.53292.98232.97353.97823.94492.69193.31822.61163.3492
O31.65502.50962.39251.43392.93952.02343.87742.08942.09793.37832.6219
O41.61512.53292.39253.74841.44464.40052.02434.08754.20022.09052.0890
C52.61072.98231.43393.74844.21161.08885.21631.09181.09574.43753.7983
C62.63232.97352.93951.44464.21164.70571.08794.33094.94121.09071.0905
H73.52183.97822.02344.40051.08884.70575.64741.78661.77955.04654.0688
H83.51163.94493.87742.02435.21631.08795.64745.40275.91301.78831.7880
H92.89062.69192.08944.08751.09184.33091.78665.40271.78674.29123.9593
H102.84523.31822.09794.20021.09574.94121.77955.91301.78675.17494.6766
H112.83812.61163.37832.09054.43751.09075.04651.78834.29125.17491.7900
H122.95743.34922.62192.08903.79831.09054.06881.78803.95934.67661.7900

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 115.198 S1 O4 C6 118.601
O2 S1 O3 106.876 O2 S1 O4 110.473
O3 S1 O4 94.040 O3 C5 H7 105.847
O3 C5 H9 110.908 O3 C5 H10 111.360
O4 C6 H8 105.265 O4 C6 H11 110.312
O4 C6 H12 110.198 H7 C5 H9 110.038
H7 C5 H10 109.092 H8 C6 H11 110.336
H8 C6 H12 110.326 H9 C5 H10 109.524
H11 C6 H12 110.299
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability