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

using model chemistry: PBEPBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at PBEPBE/6-31+G**
 hartrees
Energy at 0K-703.122393
Energy at 298.15K-703.129966
Nuclear repulsion energy342.152051
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 PBEPBE/6-31+G**
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 3108 3072 5.82      
2 A 3087 3052 6.40      
3 A 3081 3046 11.03      
4 A 3042 3008 21.70      
5 A 2991 2957 30.34      
6 A 2958 2924 60.29      
7 A 1459 1442 17.49      
8 A 1457 1441 8.12      
9 A 1440 1423 8.22      
10 A 1435 1418 10.86      
11 A 1410 1394 0.70      
12 A 1401 1385 0.67      
13 A 1144 1131 89.63      
14 A 1139 1126 2.28      
15 A 1133 1120 23.01      
16 A 1130 1117 16.17      
17 A 1122 1109 17.28      
18 A 991 980 111.01      
19 A 955 944 152.15      
20 A 664 657 93.69      
21 A 593 586 207.11      
22 A 518 513 18.63      
23 A 424 419 2.48      
24 A 341 337 4.33      
25 A 258 255 4.97      
26 A 200 198 6.39      
27 A 146 145 2.64      
28 A 120 119 2.57      
29 A 102 101 6.34      
30 A 59 59 4.05      

Unscaled Zero Point Vibrational Energy (zpe) 18954.0 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 18737.9 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 PBEPBE/6-31+G**
ABC
0.15771 0.07502 0.06399

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.015 0.614 -0.501
O2 -0.063 1.392 0.773
O3 -0.930 -0.823 -0.228
O4 1.435 -0.206 -0.635
C5 -2.268 -0.576 0.255
C6 1.966 -0.801 0.581
H7 -2.699 -1.573 0.430
H8 2.996 -1.084 0.327
H9 -2.254 -0.007 1.199
H10 -2.878 -0.045 -0.498
H11 1.966 -0.067 1.403
H12 1.377 -1.689 0.856

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.49371.72571.67122.65812.66383.58553.55442.87932.93862.83093.0140
O21.49372.58082.60393.00112.99323.98233.96032.63453.40762.57713.4017
O31.72572.58082.47811.44373.00622.03113.97332.11092.11573.40832.6916
O41.67122.60392.47813.82671.45444.48312.03294.12514.31892.11102.1047
C52.65813.00111.44373.82674.25201.09975.28881.10271.10574.41633.8579
C62.66382.99323.00621.45444.25204.73061.09844.33805.02011.10181.1007
H73.58553.98232.03114.48311.09974.73065.71701.80031.79674.99764.0997
H83.55443.96033.97332.03295.28881.09845.71705.43006.02241.80351.8081
H92.87932.63452.11094.12511.10274.33801.80035.43001.80894.22554.0163
H102.93863.40762.11574.31891.10575.02011.79676.02241.80895.20444.7587
H112.83092.57713.40832.11104.41631.10184.99761.80354.22555.20441.8101
H123.01403.40172.69162.10473.85791.10074.09971.80814.01634.75871.8101

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 113.704 S1 O4 C6 116.740
O2 S1 O3 106.355 O2 S1 O4 110.594
O3 S1 O4 93.679 O3 C5 H7 105.186
O3 C5 H9 111.278 O3 C5 H10 111.485
O4 C6 H8 104.704 O4 C6 H11 110.589
O4 C6 H12 110.147 H7 C5 H9 109.656
H7 C5 H10 109.115 H8 C6 H11 110.113
H8 C6 H12 110.609 H9 C5 H10 109.990
H11 C6 H12 110.539
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.945      
2 O -0.557      
3 O -0.445      
4 O -0.359      
5 C -0.339      
6 C -0.351      
7 H 0.180      
8 H 0.181      
9 H 0.192      
10 H 0.166      
11 H 0.195      
12 H 0.191      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.672 -1.360 0.350 1.557
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.455 -0.841 1.939
y -0.841 -45.793 -3.920
z 1.939 -3.920 -44.803
Traceless
 xyz
x 9.843 -0.841 1.939
y -0.841 -5.664 -3.920
z 1.939 -3.920 -4.179
Polar
3z2-r2-8.358
x2-y210.338
xy-0.841
xz1.939
yz-3.920


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.808 -0.069 0.037
y -0.069 8.586 0.190
z 0.037 0.190 7.550


<r2> (average value of r2) Å2
<r2> 198.291
(<r2>)1/2 14.082