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

using model chemistry: HF/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-313.451064
Energy at 298.15K-313.458752
Nuclear repulsion energy228.205932
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/LANL2DZ
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 3391 3051 9.63      
2 A 3390 3051 7.43      
3 A 3368 3031 34.27      
4 A 3363 3026 41.36      
5 A 3260 2934 71.34      
6 A 3256 2930 13.33      
7 A 1651 1486 4.15      
8 A 1645 1480 25.20      
9 A 1638 1474 17.84      
10 A 1630 1467 9.66      
11 A 1595 1435 6.13      
12 A 1587 1428 2.37      
13 A 1279 1151 0.24      
14 A 1278 1150 0.90      
15 A 1258 1132 0.82      
16 A 1258 1132 3.41      
17 A 1092 983 254.16      
18 A 1058 952 259.99      
19 A 837 753 24.41      
20 A 729 656 80.92      
21 A 707 636 43.52      
22 A 548 494 38.21      
23 A 448 404 5.46      
24 A 349 314 29.13      
25 A 260 234 25.13      
26 A 252 227 18.69      
27 A 140 126 5.09      
28 A 98 88 2.50      
29 A 81 73 5.49      
30 A 31 28 4.41      

Unscaled Zero Point Vibrational Energy (zpe) 20737.1 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 18661.3 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/LANL2DZ
ABC
0.13211 0.07634 0.06815

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.823 -0.789
O2 -0.000 1.537 0.667
O3 -1.305 -0.261 -0.733
O4 1.306 -0.260 -0.733
C5 -1.910 -0.689 0.526
C6 1.910 -0.689 0.526
H7 -2.859 -1.102 0.231
H8 2.859 -1.102 0.231
H9 -1.295 -1.446 0.988
H10 -2.038 0.151 1.190
H11 2.037 0.150 1.191
H12 1.294 -1.447 0.987

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.62221.69721.69722.76832.76833.59423.59413.15962.91932.91923.1597
O21.62222.62612.62612.93652.93673.91523.91513.26812.51972.51953.2687
O31.69722.62612.61131.46123.47972.01254.35672.09032.09853.87843.3359
O41.69722.62612.61133.48011.46124.35692.01253.33643.87912.09852.0902
C52.76832.93651.46123.48013.81971.07634.79591.07961.07794.08953.3250
C62.76832.93673.47971.46123.81974.79561.07633.32484.09021.07791.0796
H73.59423.91522.01254.35691.07634.79565.71791.77181.77855.14384.2358
H83.59413.91514.35672.01254.79591.07635.71794.23615.14471.77851.7718
H93.15963.26812.09033.33641.07963.32481.77184.23611.77313.69992.5890
H102.91932.51972.09853.87911.07794.09021.77855.14471.77314.07503.7011
H112.91922.51953.87842.09854.08951.07795.14381.77853.69994.07501.7731
H123.15973.26873.33592.09023.32501.07964.23581.77182.58903.70111.7731

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 122.263 S1 O4 C6 122.262
O2 S1 O3 104.559 O2 S1 O4 104.561
O3 S1 O4 100.580 O3 C5 H7 103.920
O3 C5 H9 109.794 O3 C5 H10 110.573
O4 C6 H8 103.920 O4 C6 H11 110.573
O4 C6 H12 109.792 H7 C5 H9 110.536
H7 C5 H10 111.300 H8 C6 H11 111.301
H8 C6 H12 110.535 H9 C5 H10 110.535
H11 C6 H12 110.537
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.388      
2 O -0.789      
3 O -0.681      
4 O -0.681      
5 C -0.271      
6 C -0.272      
7 H 0.223      
8 H 0.223      
9 H 0.189      
10 H 0.241      
11 H 0.241      
12 H 0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.001 -2.367 1.184 2.647
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.861 -0.000 0.001
y -0.000 -45.905 -7.393
z 0.001 -7.393 -45.465
Traceless
 xyz
x 8.824 -0.000 0.001
y -0.000 -4.743 -7.393
z 0.001 -7.393 -4.081
Polar
3z2-r2-8.162
x2-y29.044
xy-0.000
xz0.001
yz-7.393


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.180 0.000 0.000
y 0.000 6.464 0.433
z 0.000 0.433 5.654


<r2> (average value of r2) Å2
<r2> 186.262
(<r2>)1/2 13.648