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

using model chemistry: MP2/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-701.632564
Energy at 298.15K-701.639879
HF Energy-700.965389
Nuclear repulsion energy327.124034
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 MP2/6-31G
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 3203 3064 4.89      
2 A 3201 3063 20.83      
3 A 3154 3018 31.46      
4 A 3153 3017 3.52      
5 A 3060 2928 32.87      
6 A 3058 2926 6.81      
7 A 1575 1507 1.38      
8 A 1568 1500 16.08      
9 A 1558 1491 15.17      
10 A 1551 1484 4.38      
11 A 1498 1433 7.77      
12 A 1491 1426 4.06      
13 A 1182 1131 0.26      
14 A 1181 1130 0.32      
15 A 1151 1102 0.05      
16 A 1150 1100 0.53      
17 A 1049 1003 136.45      
18 A 919 879 110.48      
19 A 910 871 61.13      
20 A 550 526 84.93      
21 A 515 493 186.23      
22 A 495 474 35.67      
23 A 402 384 7.55      
24 A 252 241 20.23      
25 A 244 234 1.36      
26 A 239 229 29.71      
27 A 148 141 0.10      
28 A 127 122 1.79      
29 A 95 91 4.18      
30 A 47 45 1.60      

Unscaled Zero Point Vibrational Energy (zpe) 19361.8 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 18525.4 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 MP2/6-31G
ABC
0.12024 0.07482 0.06488

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 -0.926 -0.351
O2 -0.000 -1.090 1.237
O3 1.412 0.178 -0.754
O4 -1.412 0.178 -0.754
C5 1.852 1.080 0.349
C6 -1.852 1.080 0.349
H7 1.343 2.047 0.260
H8 -2.929 1.193 0.202
H9 1.646 0.627 1.329
H10 2.929 1.193 0.202
H11 -1.646 0.627 1.329
H12 -1.343 2.047 0.260

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.59641.83691.83702.81862.81863.31873.65712.81833.65712.81823.3188
O21.59642.75052.75062.98792.98793.54943.85502.38023.85522.38003.5494
O31.83692.75052.82321.49153.56142.12704.55912.14382.06073.72683.4798
O41.83702.75062.82323.56121.49153.47942.06063.72674.55892.14382.1270
C52.81862.98791.49153.56123.70441.09634.78481.09911.09273.66083.3397
C62.81862.98793.56141.49153.70443.33951.09263.66084.78481.09911.0963
H73.31873.54942.12703.47941.09633.33954.35701.80311.80213.47752.6863
H83.65713.85504.55912.06064.78481.09264.35704.74555.85801.79921.8021
H92.81832.38022.14383.72671.09913.66081.80314.74551.79923.29163.4776
H103.65713.85522.06074.55891.09274.78481.80215.85801.79924.74554.3571
H112.81822.38003.72682.14383.66081.09913.47751.79923.29164.74551.8031
H123.31883.54943.47982.12703.33971.09632.68631.80213.47764.35711.8031

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 115.347 S1 O4 C6 115.347
O2 S1 O3 106.265 O2 S1 O4 106.264
O3 S1 O4 100.427 O3 C5 H7 109.611
O3 C5 H9 110.782 O3 C5 H10 104.717
O4 C6 H8 104.716 O4 C6 H11 110.781
O4 C6 H12 109.613 H7 C5 H9 110.429
H7 C5 H10 110.822 H8 C6 H11 110.347
H8 C6 H12 110.824 H9 C5 H10 110.348
H11 C6 H12 110.427
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability