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

using model chemistry: MP2=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-702.540026
Energy at 298.15K-702.547980
HF Energy-701.315241
Nuclear repulsion energy346.384449
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 MP2=FULL/6-311G*
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 3231 3060 7.19      
2 A 3231 3060 8.77      
3 A 3178 3010 26.11      
4 A 3177 3009 14.95      
5 A 3080 2917 14.32      
6 A 3079 2916 70.23      
7 A 1551 1469 12.68      
8 A 1550 1468 16.29      
9 A 1534 1453 15.75      
10 A 1534 1453 4.15      
11 A 1514 1434 0.15      
12 A 1510 1431 0.55      
13 A 1261 1194 149.36      
14 A 1221 1156 2.72      
15 A 1214 1149 13.62      
16 A 1207 1143 1.54      
17 A 1203 1140 0.04      
18 A 1087 1030 0.35      
19 A 1043 988 350.31      
20 A 757 717 133.54      
21 A 689 653 235.13      
22 A 523 495 30.96      
23 A 445 421 1.50      
24 A 398 377 0.14      
25 A 282 267 9.25      
26 A 200 190 3.08      
27 A 182 172 0.39      
28 A 175 166 1.85      
29 A 63 60 12.00      
30 A 61 58 3.14      

Unscaled Zero Point Vibrational Energy (zpe) 20090.5 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 19027.7 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 MP2=FULL/6-311G*
ABC
0.23392 0.06782 0.05707

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.000 0.223 0.453
O2 0.001 1.461 -0.323
O3 1.159 -0.792 -0.142
O4 -1.159 -0.792 -0.143
C5 2.461 -0.187 -0.131
C6 -2.461 -0.187 -0.131
H7 3.141 -0.972 -0.450
H8 -3.141 -0.972 -0.451
H9 2.501 0.651 -0.827
H10 2.739 0.150 0.872
H11 -2.738 0.148 0.873
H12 -2.502 0.652 -0.826

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.46141.65201.65202.56262.56243.48043.48022.84252.77152.77122.8423
O21.46142.54022.54012.96762.96873.97483.97562.67633.26253.26442.6776
O31.65202.54022.31821.43563.67042.01404.31522.08672.10004.13573.9947
O41.65202.54012.31823.67011.43564.31492.01403.99344.13632.10002.0866
C52.56262.96761.43563.67014.92201.08655.66581.09011.09425.30605.0810
C62.56242.96873.67041.43564.92205.66591.08655.08055.30631.09421.0901
H73.48043.97482.01404.31491.08655.66596.28241.78491.78026.12985.8842
H83.48023.97564.31522.01405.66581.08656.28245.88326.13031.78011.7848
H92.84252.67632.08673.99341.09015.08051.78495.88321.78735.53135.0032
H102.77153.26252.10004.13631.09425.30631.78026.13031.78735.47705.5315
H112.77123.26444.13572.10005.30601.09426.12981.78015.53135.47701.7873
H122.84232.67763.99472.08665.08101.09015.88421.78485.00325.53151.7873

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 112.000 S1 O4 C6 111.990
O2 S1 O3 109.197 O2 S1 O4 109.198
O3 S1 O4 89.114 O3 C5 H7 105.136
O3 C5 H9 110.669 O3 C5 H10 111.509
O4 C6 H8 105.138 O4 C6 H11 111.505
O4 C6 H12 110.668 H7 C5 H9 110.179
H7 C5 H10 109.440 H8 C6 H11 109.436
H8 C6 H12 110.173 H9 C5 H10 109.814
H11 C6 H12 109.825
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability