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

using model chemistry: B1B95/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B1B95/cc-pVDZ
 hartrees
Energy at 0K-703.558469
Energy at 298.15K-703.566455
Nuclear repulsion energy347.821405
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 B1B95/cc-pVDZ
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 3185 3061 8.64      
2 A 3166 3043 5.81      
3 A 3163 3040 10.35      
4 A 3130 3009 19.59      
5 A 3063 2945 28.49      
6 A 3035 2917 61.81      
7 A 1477 1420 13.66      
8 A 1475 1418 7.01      
9 A 1460 1404 8.01      
10 A 1459 1403 5.36      
11 A 1432 1377 2.62      
12 A 1422 1367 0.83      
13 A 1199 1153 129.18      
14 A 1171 1125 3.25      
15 A 1168 1123 0.80      
16 A 1155 1110 1.39      
17 A 1152 1108 4.26      
18 A 1066 1024 138.25      
19 A 1028 988 189.52      
20 A 725 697 110.00      
21 A 658 632 194.20      
22 A 558 537 15.11      
23 A 462 444 1.40      
24 A 371 356 9.83      
25 A 296 285 3.97      
26 A 244 234 8.89      
27 A 187 179 3.66      
28 A 131 126 1.04      
29 A 106 102 4.11      
30 A 53 51 3.89      

Unscaled Zero Point Vibrational Energy (zpe) 19598.8 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 18838.4 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 B1B95/cc-pVDZ
ABC
0.15494 0.07986 0.06827

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.011 0.679 -0.478
O2 -0.103 1.292 0.867
O3 -0.913 -0.743 -0.417
O4 1.444 -0.130 -0.593
C5 -2.158 -0.628 0.265
C6 1.827 -0.892 0.560
H7 -2.464 -1.653 0.508
H8 2.915 -1.003 0.495
H9 -2.048 -0.049 1.192
H10 -2.925 -0.165 -0.376
H11 1.561 -0.352 1.479
H12 1.340 -1.875 0.542

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.48231.69681.65022.63862.61623.54053.49412.74903.05702.70043.0546
O21.48232.53882.55862.87632.93083.79193.80932.38503.41102.41723.4957
O31.69682.53882.44191.42352.91282.02213.94362.08732.09433.14072.6976
O41.65022.55862.44193.73581.43364.33652.02663.92244.37532.08632.0839
C52.63862.87631.42353.73584.00431.09675.09151.09881.10213.92103.7234
C62.61622.93082.91281.43364.00434.35851.09534.01544.89811.09871.0974
H73.54053.79192.02214.33651.09674.35855.41831.79241.79084.33993.8108
H83.49413.80933.94362.02665.09151.09535.41835.10115.96411.79591.8012
H92.74902.38502.08733.92241.09884.01541.79245.10111.80063.63213.9029
H103.05703.41102.09434.37531.10214.89811.79085.96411.80064.85784.6863
H112.70042.41723.14072.08633.92101.09874.33991.79593.63214.85781.8023
H123.05463.49572.69762.08393.72341.09743.81081.80123.90294.68631.8023

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 115.202 S1 O4 C6 115.893
O2 S1 O3 105.799 O2 S1 O4 109.420
O3 S1 O4 93.695 O3 C5 H7 105.985
O3 C5 H9 111.041 O3 C5 H10 111.403
O4 C6 H8 105.740 O4 C6 H11 110.244
O4 C6 H12 110.133 H7 C5 H9 109.458
H7 C5 H10 109.064 H8 C6 H11 109.878
H8 C6 H12 110.455 H9 C5 H10 109.793
H11 C6 H12 110.300
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.845      
2 O -0.460      
3 O -0.438      
4 O -0.407      
5 C 0.073      
6 C 0.066      
7 H 0.055      
8 H 0.060      
9 H 0.056      
10 H 0.038      
11 H 0.056      
12 H 0.056      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.622 -1.312 0.198 1.465
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.064 -0.736 1.490
y -0.736 -43.200 -4.164
z 1.490 -4.164 -43.636
Traceless
 xyz
x 7.354 -0.736 1.490
y -0.736 -3.350 -4.164
z 1.490 -4.164 -4.004
Polar
3z2-r2-8.007
x2-y27.136
xy-0.736
xz1.490
yz-4.164


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.990 -0.063 0.053
y -0.063 6.928 0.054
z 0.053 0.054 5.962


<r2> (average value of r2) Å2
<r2> 189.089
(<r2>)1/2 13.751