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

using model chemistry: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-703.677599
Energy at 298.15K-703.685422
HF Energy-703.677599
Nuclear repulsion energy350.034157
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 TPSSh/6-31G(2df,p)
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 3160 3050 12.39      
2 A 3146 3036 11.71      
3 A 3142 3032 12.50      
4 A 3106 2997 23.29      
5 A 3054 2947 30.05      
6 A 3021 2916 53.66      
7 A 1518 1465 10.48      
8 A 1514 1461 5.27      
9 A 1501 1448 4.60      
10 A 1499 1446 5.26      
11 A 1464 1413 2.06      
12 A 1454 1403 1.06      
13 A 1214 1172 117.09      
14 A 1187 1145 1.77      
15 A 1184 1143 0.56      
16 A 1173 1132 3.22      
17 A 1164 1124 2.02      
18 A 1026 991 130.92      
19 A 983 948 207.46      
20 A 732 707 84.52      
21 A 667 644 195.16      
22 A 561 542 10.96      
23 A 456 440 1.74      
24 A 379 365 6.26      
25 A 278 268 5.34      
26 A 219 212 6.59      
27 A 136 131 5.07      
28 A 120 115 0.19      
29 A 101 98 3.40      
30 A 54 52 2.86      

Unscaled Zero Point Vibrational Energy (zpe) 19605.8 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 18919.6 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 TPSSh/6-31G(2df,p)
ABC
0.16232 0.07928 0.06757

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.015 0.626 -0.485
O2 -0.057 1.328 0.800
O3 -0.882 -0.793 -0.261
O4 1.403 -0.166 -0.629
C5 -2.208 -0.578 0.244
C6 1.889 -0.820 0.564
H7 -2.634 -1.574 0.379
H8 2.934 -1.051 0.355
H9 -2.178 -0.049 1.200
H10 -2.821 -0.016 -0.472
H11 1.810 -0.145 1.419
H12 1.320 -1.734 0.746

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.46481.67781.63012.60552.61053.52763.49482.82432.87862.74702.9769
O21.46482.51062.53122.92702.90813.90343.84772.56043.32592.45673.3572
O31.67782.51062.39801.43442.89162.02173.87462.09012.09923.23872.5974
O41.63012.53122.39803.73741.44514.39242.02444.02354.22922.08872.0870
C52.60552.92701.43443.73744.11671.09175.16511.09381.09714.20853.7458
C62.61052.90812.89161.44514.11674.58931.09044.18894.88921.09281.0920
H73.52763.90342.02174.39241.09174.58935.59281.79101.78504.78253.9738
H83.49483.84773.87462.02445.16511.09045.59285.27835.90571.79391.7960
H92.82432.56042.09014.02351.09384.18891.79105.27831.79163.99553.9094
H102.87863.32592.09924.22921.09714.88921.78505.90571.79165.00354.6452
H112.74702.45673.23872.08874.20851.09284.78251.79393.99555.00351.7944
H122.97693.35722.59742.08703.74581.09203.97381.79603.90944.64521.7944

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 113.462 S1 O4 C6 116.051
O2 S1 O3 105.847 O2 S1 O4 109.627
O3 S1 O4 92.911 O3 C5 H7 105.525
O3 C5 H9 110.807 O3 C5 H10 111.343
O4 C6 H8 105.102 O4 C6 H11 110.002
O4 C6 H12 109.914 H7 C5 H9 110.075
H7 C5 H10 109.284 H8 C6 H11 110.507
H8 C6 H12 110.763 H9 C5 H10 109.724
H11 C6 H12 110.429
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability