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

using model chemistry: MP2/SDD

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/SDD
 hartrees
Energy at 0K-701.691283
Energy at 298.15K-701.698414
HF Energy-701.029835
Nuclear repulsion energy326.992146
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/SDD
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 3190 3079 4.85      
2 A 3188 3077 28.15      
3 A 3140 3031 47.55      
4 A 3138 3030 5.28      
5 A 3027 2922 51.97      
6 A 3025 2920 9.92      
7 A 1540 1487 0.90      
8 A 1533 1480 20.43      
9 A 1524 1471 18.72      
10 A 1516 1464 3.67      
11 A 1474 1423 7.11      
12 A 1467 1416 1.33      
13 A 1161 1121 0.51      
14 A 1160 1120 0.06      
15 A 1135 1096 0.08      
16 A 1132 1093 0.47      
17 A 1049 1013 148.51      
18 A 918 886 120.47      
19 A 909 878 68.40      
20 A 544 525 67.48      
21 A 485 468 181.56      
22 A 468 451 66.26      
23 A 390 376 27.61      
24 A 258 249 7.91      
25 A 243 235 18.71      
26 A 230 222 20.68      
27 A 136 131 0.77      
28 A 97 93 1.63      
29 A 93 90 4.25      
30 A 40 39 1.68      

Unscaled Zero Point Vibrational Energy (zpe) 19103.3 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 18440.5 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/SDD
ABC
0.12065 0.07443 0.06437

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.001 -0.930 -0.342
O2 -0.001 -1.079 1.234
O3 1.408 0.165 -0.747
O4 -1.405 0.168 -0.750
C5 1.870 1.089 0.342
C6 -1.873 1.086 0.341
H7 2.939 1.231 0.135
H8 -2.943 1.221 0.136
H9 1.324 2.043 0.270
H10 1.722 0.629 1.334
H11 -1.721 0.624 1.333
H12 -1.333 2.044 0.271

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.58331.82831.82922.83522.83573.67833.67703.31132.86362.86073.3162
O21.58332.73122.73173.00042.99863.89753.89273.52672.42822.42283.5292
O31.82832.73122.81271.50113.57752.06384.56382.13772.15543.78513.4759
O41.82922.73172.81273.57301.50094.55892.06433.46483.78572.15542.1373
C52.83523.00041.50113.57303.74361.09784.81981.10171.10453.75463.3435
C62.83572.99863.57751.50093.74364.81911.09783.33843.75761.10461.1016
H73.67833.89752.06384.55891.09784.81915.88251.81311.81184.84984.3514
H83.67703.89274.56382.06434.81981.09785.88254.34804.85271.81161.8131
H93.31133.52672.13773.46481.10173.33841.81314.34801.81443.52382.6574
H102.86362.42822.15543.78571.10453.75761.81184.85271.81443.44283.5305
H112.86072.42283.78512.15543.75461.10464.84981.81163.52383.44281.8143
H123.31623.52923.47592.13733.34351.10164.35141.81312.65743.53051.8143

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 116.429 S1 O4 C6 116.410
O2 S1 O3 106.149 O2 S1 O4 106.130
O3 S1 O4 100.534 O3 C5 H7 104.064
O3 C5 H9 109.477 O3 C5 H10 110.713
O4 C6 H8 104.111 O4 C6 H11 110.717
O4 C6 H12 109.458 H7 C5 H9 111.040
H7 C5 H10 110.711 H8 C6 H11 110.686
H8 C6 H12 111.047 H9 C5 H10 110.654
H11 C6 H12 110.643
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability