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

using model chemistry: BLYP/6-31G*

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/6-31G*
 hartrees
Energy at 0K-703.521961
Energy at 298.15K-703.529398
HF Energy-703.521961
Nuclear repulsion energy339.965005
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/6-31G*
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 3090 3065 13.08      
2 A 3069 3044 15.96      
3 A 3067 3042 15.26      
4 A 3025 3001 29.68      
5 A 2991 2967 29.40      
6 A 2949 2926 66.09      
7 A 1495 1483 15.10      
8 A 1493 1481 5.45      
9 A 1475 1463 4.31      
10 A 1471 1459 6.74      
11 A 1439 1428 6.02      
12 A 1425 1414 2.39      
13 A 1150 1141 3.94      
14 A 1150 1140 7.37      
15 A 1143 1133 1.06      
16 A 1135 1125 17.50      
17 A 1125 1115 84.77      
18 A 967 960 111.04      
19 A 928 921 154.74      
20 A 647 642 81.19      
21 A 575 570 192.42      
22 A 506 502 17.71      
23 A 420 416 2.89      
24 A 331 328 4.06      
25 A 258 256 4.31      
26 A 203 201 5.78      
27 A 140 139 3.50      
28 A 118 117 2.64      
29 A 88 88 3.19      
30 A 44 44 3.66      

Unscaled Zero Point Vibrational Energy (zpe) 18958.5 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 18804.9 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/6-31G*
ABC
0.15306 0.07472 0.06338

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.026 0.587 -0.484
O2 -0.058 1.423 0.735
O3 -0.921 -0.795 -0.173
O4 1.402 -0.194 -0.626
C5 -2.292 -0.594 0.241
C6 2.024 -0.795 0.549
H7 -2.733 -1.596 0.329
H8 3.017 -1.123 0.219
H9 -2.344 -0.080 1.213
H10 -2.864 -0.018 -0.508
H11 2.121 -0.055 1.357
H12 1.439 -1.658 0.896

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.47841.67591.63442.65672.67973.57153.56112.94902.90192.90013.0155
O21.47842.54722.56923.05043.04784.05404.02582.77693.39062.70563.4294
O31.67592.54722.44191.44653.03222.04383.97122.11122.11953.48422.7306
O41.63442.56922.44193.81591.45854.46952.04544.17474.27162.11322.1118
C52.65673.05041.44653.81594.33211.09795.33601.10061.10504.58393.9348
C62.67973.04783.03221.45854.33214.82941.09694.47605.06131.09931.0992
H73.57154.05402.04384.46951.09794.82945.77101.79791.79105.19564.2111
H83.56114.02583.97122.04545.33601.09695.77105.55186.02831.79941.7991
H92.94902.77692.11124.17471.10064.47601.79795.55181.79874.46774.1116
H102.90193.39062.11954.27161.10505.06131.79106.02831.79875.32274.8144
H112.90012.70563.48422.11324.58391.09935.19561.79944.46775.32271.8018
H123.01553.42942.73062.11183.93481.09924.21111.79914.11164.81441.8018

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 116.416 S1 O4 C6 119.981
O2 S1 O3 107.547 O2 S1 O4 111.151
O3 S1 O4 95.057 O3 C5 H7 106.076
O3 C5 H9 111.235 O3 C5 H10 111.644
O4 C6 H8 105.471 O4 C6 H11 110.631
O4 C6 H12 110.524 H7 C5 H9 109.736
H7 C5 H10 108.786 H8 C6 H11 110.035
H8 C6 H12 110.012 H9 C5 H10 109.285
H11 C6 H12 110.080
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.983      
2 O -0.515      
3 O -0.515      
4 O -0.476      
5 C -0.212      
6 C -0.218      
7 H 0.159      
8 H 0.162      
9 H 0.162      
10 H 0.139      
11 H 0.167      
12 H 0.164      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.606 -1.244 0.395 1.439
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.235 -0.812 1.758
y -0.812 -44.276 -3.781
z 1.758 -3.781 -43.511
Traceless
 xyz
x 8.659 -0.812 1.758
y -0.812 -4.903 -3.781
z 1.758 -3.781 -3.756
Polar
3z2-r2-7.512
x2-y29.042
xy-0.812
xz1.758
yz-3.781


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.708 -0.053 0.047
y -0.053 7.330 0.086
z 0.047 0.086 6.166


<r2> (average value of r2) Å2
<r2> 199.386
(<r2>)1/2 14.120