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

using model chemistry: MP2/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-702.702619
Energy at 298.15K-702.710625
HF Energy-701.421934
Nuclear repulsion energy350.679118
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/aug-cc-pVTZ
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 3218 3066 4.83      
2 A 3204 3053 4.98      
3 A 3195 3045 5.62      
4 A 3160 3011 13.01      
5 A 3095 2949 27.96      
6 A 3066 2922 39.98      
7 A 1530 1458 13.55      
8 A 1529 1457 7.62      
9 A 1513 1442 7.94      
10 A 1511 1440 7.88      
11 A 1474 1404 0.37      
12 A 1467 1398 0.45      
13 A 1228 1170 149.22      
14 A 1198 1141 6.21      
15 A 1194 1138 2.33      
16 A 1182 1126 2.32      
17 A 1179 1123 1.40      
18 A 1041 992 110.50      
19 A 1014 966 261.55      
20 A 749 714 98.79      
21 A 690 657 219.87      
22 A 571 544 14.18      
23 A 458 437 2.41      
24 A 390 372 6.35      
25 A 292 278 5.62      
26 A 229 219 6.35      
27 A 156 149 4.88      
28 A 134 128 2.34      
29 A 92 88 4.62      
30 A 72 68 2.48      

Unscaled Zero Point Vibrational Energy (zpe) 19914.2 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 18976.3 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 MP2/aug-cc-pVTZ
ABC
0.16711 0.07881 0.06739

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.020 0.594 -0.489
O2 -0.072 1.341 0.773
O3 -0.885 -0.814 -0.225
O4 1.414 -0.162 -0.631
C5 -2.220 -0.558 0.241
C6 1.916 -0.788 0.572
H7 -2.669 -1.535 0.392
H8 2.958 -1.002 0.362
H9 -2.199 -0.006 1.179
H10 -2.795 -0.004 -0.502
H11 1.832 -0.103 1.413
H12 1.365 -1.703 0.768

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.46731.67401.62732.58922.60463.51113.48442.80902.83912.74502.9626
O21.46732.51102.53762.91682.91973.89433.85232.55073.29462.47413.3663
O31.67402.51102.42361.43772.91252.02063.89222.08612.09363.25172.6154
O41.62732.53762.42363.75831.44624.42712.01914.04404.21402.08782.0821
C52.58922.91681.43773.75834.15621.08545.19901.08821.09134.24323.8007
C62.60462.91972.91251.44624.15624.64921.08444.23264.89561.08791.0861
H73.51113.89432.02064.42711.08544.64925.65241.78281.77774.83274.0553
H83.48443.85233.89222.01915.19901.08445.65245.31575.90301.78361.7872
H92.80902.55072.08614.04401.08824.23261.78285.31571.78384.03933.9689
H102.83913.29462.09364.21401.09134.89561.77775.90301.78385.00944.6704
H112.74502.47413.25172.08784.24321.08794.83271.78364.03935.00941.7868
H122.96263.36632.61542.08213.80071.08614.05531.78723.96894.67041.7868

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 112.405 S1 O4 C6 115.742
O2 S1 O3 105.947 O2 S1 O4 110.065
O3 S1 O4 94.456 O3 C5 H7 105.571
O3 C5 H9 110.598 O3 C5 H10 111.019
O4 C6 H8 104.955 O4 C6 H11 110.155
O4 C6 H12 109.797 H7 C5 H9 110.208
H7 C5 H10 109.504 H8 C6 H11 110.390
H8 C6 H12 110.852 H9 C5 H10 109.861
H11 C6 H12 110.555
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability