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All results from a given calculation for H2SO4 (Sulfuric acid)

using model chemistry: HF/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-698.263887
Energy at 298.15K-698.269425
Nuclear repulsion energy297.146286
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/6-311+G(3df,2p)
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 4118 3742 70.36      
2 A 1364 1239 238.10      
3 A 1247 1133 97.22      
4 A 979 890 108.99      
5 A 629 571 75.30      
6 A 489 445 10.89      
7 A 427 388 1.09      
8 A 272 247 125.68      
9 B 4113 3737 331.16      
10 B 1605 1459 415.93      
11 B 1270 1154 121.15      
12 B 1024 930 376.16      
13 B 643 584 61.91      
14 B 564 513 47.14      
15 B 351 319 71.54      

Unscaled Zero Point Vibrational Energy (zpe) 9547.0 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 8674.4 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 HF/6-311+G(3df,2p)
ABC
0.17981 0.17421 0.16949

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.146
O2 0.000 1.220 0.810
O3 0.000 -1.220 0.810
O4 1.201 -0.029 -0.820
O5 -1.201 0.029 -0.820
H6 -1.456 -0.842 -1.086
H7 1.456 0.842 -1.086

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.38861.38861.54191.54192.08472.0847
O21.38862.43952.37922.34893.15652.4197
O31.38862.43952.34892.37922.41973.1565
O41.54192.37922.34892.40272.79100.9458
O51.54192.34892.37922.40270.94582.7910
H62.08473.15652.41972.79100.94583.3637
H72.08472.41973.15650.94582.79103.3637

picture of Sulfuric acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 O4 H7 111.602 S1 O5 H6 111.602
O2 S1 O3 122.896 O2 S1 O4 108.441
O2 S1 O5 106.435 O3 S1 O4 106.435
O3 S1 O5 108.441 O4 S1 O5 102.359
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.502      
2 O -0.624      
3 O -0.624      
4 O -0.389      
5 O -0.389      
6 H 0.262      
7 H 0.262      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -3.566 3.566
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.077 5.494 0.000
y 5.494 -37.041 0.000
z 0.000 0.000 -34.573
Traceless
 xyz
x 4.729 5.494 0.000
y 5.494 -4.216 0.000
z 0.000 0.000 -0.514
Polar
3z2-r2-1.027
x2-y25.963
xy5.494
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.296 0.180 0.000
y 0.180 4.625 0.000
z 0.000 0.000 4.278


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000