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

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-694.950489
Energy at 298.15K-694.958427
Nuclear repulsion energy327.325351
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 BLYP/STO-3G
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 3266 3022 13.26      
2 A 3173 2936 7.70      
3 A 2880 2665 30.13      
4 A 1629 1507 2.95      
5 A 1616 1495 9.68      
6 A 1476 1365 35.58      
7 A 1208 1118 5.84      
8 A 1148 1062 0.57      
9 A 1050 972 6.29      
10 A 995 920 15.70      
11 A 600 555 3.21      
12 A 494 457 7.07      
13 A 411 380 5.94      
14 A 363 336 5.34      
15 A 202 187 2.35      
16 A 100 92 0.10      
17 A 3265 3021 9.61      
18 A 3172 2934 9.97      
19 A 2856 2642 73.29      
20 A 1613 1493 3.49      
21 A 1609 1488 27.53      
22 A 1457 1348 0.10      
23 A 1202 1112 13.41      
24 A 1147 1061 0.25      
25 A 1037 959 27.25      
26 A 494 457 27.56      
27 A 466 431 16.14      
28 A 384 355 42.28      
29 A 349 323 6.01      
30 A 119 110 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19888.5 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 18400.8 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 BLYP/STO-3G
ABC
0.13078 0.07071 0.06838

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.669 -0.753 0.000
O2 -1.262 0.765 0.000
O3 0.616 -0.637 1.445
O4 0.616 -0.637 -1.445
C5 0.616 0.774 1.877
C6 0.616 0.774 -1.877
H7 0.374 0.851 2.965
H8 0.374 0.851 -2.965
H9 1.601 1.264 1.677
H10 -0.200 1.299 1.268
H11 -0.200 1.299 -1.268
H12 1.601 1.264 -1.677

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.62881.93751.93752.73952.73953.52883.52883.46882.45672.45673.4688
O21.62882.75282.75282.65482.65483.38783.38783.35501.73751.73753.3550
O31.93752.75282.89101.47533.60962.14024.66122.15342.10813.43133.7856
O41.93752.75282.89103.60961.47534.66122.14023.78563.43132.10812.1534
C52.73952.65481.47533.60963.75401.11764.84911.11861.14573.29093.7201
C62.73952.65483.60961.47533.75404.84911.11763.72013.29091.14571.1186
H73.52883.38782.14024.66121.11764.84915.93091.82691.84764.29544.8193
H83.52883.38784.66122.14024.84911.11765.93094.81934.29541.84761.8269
H93.46883.35502.15343.78561.11863.72011.82694.81931.84773.45193.3532
H102.45671.73752.10813.43131.14573.29091.84764.29541.84772.53533.4519
H112.45671.73753.43132.10813.29091.14574.29541.84763.45192.53531.8477
H123.46883.35503.78562.15343.72011.11864.81931.82693.35323.45191.8477

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 105.987 S1 O4 C6 105.987
O2 S1 O3 100.690 O2 S1 O4 100.690
O3 S1 O4 96.498 O3 C5 H7 110.509
O3 C5 H9 111.494 O3 C5 H10 106.409
O4 C6 H8 110.509 O4 C6 H11 106.409
O4 C6 H12 111.494 H7 C5 H9 109.569
H7 C5 H10 109.426 H8 C6 H11 109.426
H8 C6 H12 109.569 H9 C5 H10 109.367
H11 C6 H12 109.367
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.526      
2 O -0.255      
3 O -0.182      
4 O -0.182      
5 C -0.170      
6 C -0.170      
7 H 0.068      
8 H 0.068      
9 H 0.066      
10 H 0.082      
11 H 0.082      
12 H 0.066      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.776 0.184 0.000 0.798
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.201 3.022 0.000
y 3.022 -39.037 0.000
z 0.000 0.000 -38.845
Traceless
 xyz
x -0.260 3.022 0.000
y 3.022 -0.014 0.000
z 0.000 0.000 0.274
Polar
3z2-r20.547
x2-y2-0.164
xy3.022
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.153 0.194 0.000
y 0.194 3.945 0.000
z 0.000 0.000 7.416


<r2> (average value of r2) Å2
<r2> 197.945
(<r2>)1/2 14.069