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

using model chemistry: PBEPBE/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-703.271194
Energy at 298.15K-703.278838
Nuclear repulsion energy345.373273
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/cc-pVTZ
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 3082 3061 8.40      
2 A 3062 3041 8.27      
3 A 3060 3039 12.15      
4 A 3022 3001 21.93      
5 A 2979 2959 29.53      
6 A 2945 2925 56.42      
7 A 1454 1444 15.14      
8 A 1452 1442 5.68      
9 A 1433 1423 6.31      
10 A 1431 1421 8.30      
11 A 1405 1395 0.78      
12 A 1396 1386 1.14      
13 A 1165 1156 117.39      
14 A 1139 1131 1.19      
15 A 1136 1128 1.53      
16 A 1130 1122 2.03      
17 A 1122 1114 2.27      
18 A 991 985 113.03      
19 A 950 943 159.21      
20 A 687 682 86.90      
21 A 618 613 203.53      
22 A 532 528 13.93      
23 A 435 432 1.96      
24 A 356 353 3.65      
25 A 268 266 4.94      
26 A 214 212 5.49      
27 A 135 134 4.89      
28 A 117 116 1.79      
29 A 86 85 2.44      
30 A 60 60 2.85      

Unscaled Zero Point Vibrational Energy (zpe) 18929.3 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 18798.7 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/cc-pVTZ
ABC
0.16217 0.07606 0.06525

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.019 0.600 -0.498
O2 -0.048 1.369 0.766
O3 -0.918 -0.817 -0.212
O4 1.416 -0.203 -0.640
C5 -2.257 -0.559 0.252
C6 1.956 -0.785 0.575
H7 -2.696 -1.544 0.449
H8 3.013 -0.972 0.359
H9 -2.249 0.033 1.177
H10 -2.858 -0.044 -0.515
H11 1.861 -0.081 1.413
H12 1.439 -1.724 0.806

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.47921.70221.65042.62912.64003.55813.52122.84562.91112.76563.0377
O21.47922.54802.56732.97652.94853.94953.87532.60693.39582.48363.4326
O31.70222.54802.45071.43972.98062.03153.97582.10332.10963.30282.7236
O41.65042.56732.45073.79561.45124.45982.03484.09694.27832.10372.0986
C52.62912.97651.43973.79564.23111.09625.28691.09891.10224.30503.9143
C62.64002.94852.98061.45124.23114.71561.09494.32584.99121.09791.0970
H73.55813.94952.03154.45981.09624.71565.73871.79411.79004.88274.1546
H83.52123.87533.97582.03485.28691.09495.73875.41916.00781.79711.8011
H92.84562.60692.10334.09691.09894.32581.79415.41911.80024.11834.1019
H102.91113.39582.10964.27831.10224.99121.79006.00781.80025.09784.7991
H112.76562.48363.30282.10374.30501.09794.88271.79714.11835.09781.8016
H123.03773.43262.72362.09863.91431.09704.15461.80114.10194.79911.8016

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 113.340 S1 O4 C6 116.532
O2 S1 O3 106.220 O2 S1 O4 110.111
O3 S1 O4 93.924 O3 C5 H7 105.668
O3 C5 H9 111.187 O3 C5 H10 111.488
O4 C6 H8 105.244 O4 C6 H11 110.463
O4 C6 H12 110.109 H7 C5 H9 109.636
H7 C5 H10 109.018 H8 C6 H11 110.077
H8 C6 H12 110.507 H9 C5 H10 109.741
H11 C6 H12 110.333
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.635      
2 O -0.413      
3 O -0.299      
4 O -0.270      
5 C -0.106      
6 C -0.126      
7 H 0.108      
8 H 0.112      
9 H 0.091      
10 H 0.075      
11 H 0.094      
12 H 0.100      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.556 -1.392 0.229 1.517
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.276 -0.640 1.585
y -0.640 -44.856 -3.392
z 1.585 -3.392 -43.884
Traceless
 xyz
x 9.094 -0.640 1.585
y -0.640 -5.276 -3.392
z 1.585 -3.392 -3.818
Polar
3z2-r2-7.636
x2-y29.580
xy-0.640
xz1.585
yz-3.392


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.630 -0.090 0.085
y -0.090 8.045 -0.017
z 0.085 -0.017 7.141


<r2> (average value of r2) Å2
<r2> 194.830
(<r2>)1/2 13.958