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

using model chemistry: B3PW91/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 B3PW91/cc-pVTZ
 hartrees
Energy at 0K-703.622559
Energy at 298.15K-703.630503
Nuclear repulsion energy351.024820
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 B3PW91/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 3145 3024 3.18      
2 A 3144 3023 10.24      
3 A 3124 3004 15.46      
4 A 3122 3002 23.11      
5 A 3043 2927 60.52      
6 A 3040 2924 12.74      
7 A 1502 1444 3.12      
8 A 1496 1438 9.33      
9 A 1493 1435 15.98      
10 A 1485 1428 3.71      
11 A 1454 1398 2.77      
12 A 1445 1389 0.20      
13 A 1212 1165 129.31      
14 A 1182 1137 0.88      
15 A 1181 1136 0.43      
16 A 1164 1120 0.49      
17 A 1163 1119 2.28      
18 A 1035 995 189.76      
19 A 1003 965 155.61      
20 A 694 667 84.63      
21 A 673 647 261.02      
22 A 606 583 11.26      
23 A 481 463 0.25      
24 A 353 340 8.06      
25 A 282 271 12.76      
26 A 276 265 11.69      
27 A 157 151 0.61      
28 A 118 113 0.07      
29 A 98 95 2.94      
30 A 45 43 0.56      

Unscaled Zero Point Vibrational Energy (zpe) 19607.4 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 18854.5 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 B3PW91/cc-pVTZ
ABC
0.13824 0.08614 0.07343

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.001 -0.851 -0.316
O2 0.001 -1.040 1.136
O3 1.270 0.121 -0.681
O4 -1.273 0.119 -0.679
C5 1.771 1.034 0.301
C6 -1.769 1.036 0.302
H7 2.837 1.135 0.109
H8 -2.835 1.141 0.111
H9 1.286 2.006 0.194
H10 1.612 0.644 1.307
H11 -1.610 0.648 1.308
H12 -1.280 2.006 0.192

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.46411.64091.64072.65932.65883.48953.49043.17452.73242.73363.1713
O21.46412.50242.50242.85162.85283.71883.72153.43762.33662.33953.4366
O31.64092.50242.54301.43203.32252.02714.30332.07852.08393.53983.2895
O41.64072.50242.54303.32651.43204.30692.02693.29773.54162.08392.0786
C52.65932.85161.43203.32653.53981.08834.61121.09131.08993.54893.2044
C62.65882.85283.32251.43203.53984.61131.08833.20723.54851.08991.0913
H73.48953.71882.02714.30691.08834.61135.67241.78101.78244.63204.2099
H83.49043.72154.30332.02694.61121.08835.67244.21214.63161.78231.7809
H93.17453.43762.07853.29771.09133.20721.78104.21211.78843.38752.5669
H102.73242.33662.08393.54161.08993.54851.78244.63161.78843.22203.3857
H112.73362.33953.53982.08393.54891.08994.63201.78233.38753.22201.7884
H123.17133.43663.28952.07863.20441.09134.20991.78092.56693.38571.7884

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 119.705 S1 O4 C6 119.684
O2 S1 O3 107.264 O2 S1 O4 107.274
O3 S1 O4 101.600 O3 C5 H7 106.288
O3 C5 H9 110.189 O3 C5 H10 110.715
O4 C6 H8 106.277 O4 C6 H11 110.718
O4 C6 H12 110.201 H7 C5 H9 109.598
H7 C5 H10 109.826 H8 C6 H11 109.823
H8 C6 H12 109.594 H9 C5 H10 110.150
H11 C6 H12 110.153
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.721      
2 O -0.473      
3 O -0.319      
4 O -0.318      
5 C -0.090      
6 C -0.090      
7 H 0.109      
8 H 0.109      
9 H 0.079      
10 H 0.096      
11 H 0.096      
12 H 0.079      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.003 2.346 0.290 2.364
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.013 -0.007 -0.003
y -0.007 -40.490 3.176
z -0.003 3.176 -46.249
Traceless
 xyz
x 5.357 -0.007 -0.003
y -0.007 1.640 3.176
z -0.003 3.176 -6.997
Polar
3z2-r2-13.995
x2-y22.478
xy-0.007
xz-0.003
yz3.176


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


<r2> (average value of r2) Å2
<r2> 182.735
(<r2>)1/2 13.518