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

using model chemistry: HF/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 HF/6-31G**
 hartrees
Energy at 0K-701.249513
Energy at 298.15K-701.257886
Nuclear repulsion energy354.333513
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 HF/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 3337 3012 15.35      
2 A 3330 3006 20.30      
3 A 3327 3003 17.77      
4 A 3289 2968 30.25      
5 A 3235 2920 33.37      
6 A 3199 2887 51.25      
7 A 1642 1482 11.82      
8 A 1641 1481 5.60      
9 A 1627 1469 4.63      
10 A 1624 1466 5.30      
11 A 1609 1453 2.62      
12 A 1600 1444 0.85      
13 A 1327 1198 188.62      
14 A 1313 1185 14.78      
15 A 1305 1178 19.11      
16 A 1286 1160 3.56      
17 A 1282 1157 2.30      
18 A 1162 1049 175.61      
19 A 1127 1017 469.78      
20 A 844 762 83.83      
21 A 817 737 240.13      
22 A 643 581 22.70      
23 A 514 464 4.90      
24 A 438 395 17.82      
25 A 310 280 7.15      
26 A 248 224 9.54      
27 A 171 154 6.63      
28 A 144 130 4.18      
29 A 94 84 4.85      
30 A 75 68 4.42      

Unscaled Zero Point Vibrational Energy (zpe) 21278.4 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 19205.9 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 HF/6-31G**
ABC
0.17218 0.07904 0.06778

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.028 0.584 -0.476
O2 -0.043 1.331 0.757
O3 -0.889 -0.761 -0.202
O4 1.363 -0.164 -0.613
C5 -2.223 -0.571 0.241
C6 1.950 -0.786 0.534
H7 -2.657 -1.557 0.310
H8 2.937 -1.087 0.220
H9 -2.237 -0.088 1.208
H10 -2.789 0.019 -0.473
H11 2.012 -0.081 1.349
H12 1.368 -1.649 0.822

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.44211.62061.58552.58262.60913.48063.47402.85842.81802.81642.9359
O21.44212.45252.46792.93942.91623.92133.87532.65223.28262.56243.2981
O31.62062.45252.36581.41932.93212.00553.86252.06422.07173.35852.6319
O41.58552.46792.36583.70951.43004.35372.00564.03574.15842.06762.0649
C52.58262.93941.41933.70954.18871.07925.18601.08071.08544.40483.7939
C62.60912.91622.93211.43004.18874.67581.07874.29814.91041.07961.0800
H73.48063.92132.00554.35371.07924.67585.61411.77211.76485.00534.0579
H83.47403.87533.86252.00565.18601.07875.61415.36185.87251.77261.7720
H92.85842.65222.06424.03571.08074.29811.77215.36181.77234.25153.9476
H102.81803.28262.07174.15841.08544.91041.76485.87251.77235.13544.6619
H112.81642.56243.35852.06764.40481.07965.00531.77264.25155.13541.7752
H122.93593.29812.63192.06493.79391.08004.05791.77203.94764.66191.7752

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 116.175 S1 O4 C6 119.727
O2 S1 O3 106.261 O2 S1 O4 109.110
O3 S1 O4 95.100 O3 C5 H7 105.974
O3 C5 H9 110.588 O3 C5 H10 110.911
O4 C6 H8 105.301 O4 C6 H11 110.163
O4 C6 H12 109.924 H7 C5 H9 110.263
H7 C5 H10 109.228 H8 C6 H11 110.425
H8 C6 H12 110.338 H9 C5 H10 109.809
H11 C6 H12 110.568
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.371 0.562    
2 O -0.734 -0.443    
3 O -0.721 -0.377    
4 O -0.680 -0.391    
5 C -0.048 0.270    
6 C -0.054 0.334    
7 H 0.146 0.018    
8 H 0.145 -0.000    
9 H 0.153 0.021    
10 H 0.120 0.014    
11 H 0.157 -0.017    
12 H 0.144 0.009    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.860 -1.906 0.065 2.092
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.315 -0.804 1.940
y -0.804 -45.235 -4.328
z 1.940 -4.328 -44.074
Traceless
 xyz
x 11.339 -0.804 1.940
y -0.804 -6.540 -4.328
z 1.940 -4.328 -4.799
Polar
3z2-r2-9.599
x2-y211.919
xy-0.804
xz1.940
yz-4.328


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.798 0.010 0.011
y 0.010 6.234 0.144
z 0.011 0.144 5.510


<r2> (average value of r2) Å2
<r2> 188.016
(<r2>)1/2 13.712