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

using model chemistry: PBEPBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/6-311G*
 hartrees
Energy at 0K-699.845123
Energy at 298.15K-699.849993
Nuclear repulsion energy282.035982
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 PBEPBE/6-311G*
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 3619 3582 40.39      
2 A 1147 1136 42.94      
3 A 1121 1109 185.27      
4 A 725 717 122.80      
5 A 485 480 49.16      
6 A 424 419 46.71      
7 A 345 341 12.01      
8 A 258 255 65.94      
9 B 3616 3578 98.98      
10 B 1397 1382 251.49      
11 B 1136 1124 87.00      
12 B 788 780 331.35      
13 B 492 487 11.94      
14 B 449 444 58.05      
15 B 323 320 77.30      

Unscaled Zero Point Vibrational Energy (zpe) 8161.1 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 8076.2 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 PBEPBE/6-311G*
ABC
0.16040 0.15816 0.15226

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.174
O2 0.000 1.289 0.842
O3 0.000 -1.289 0.842
O4 1.272 -0.066 -0.866
O5 -1.272 0.066 -0.866
H6 -1.456 -0.835 -1.202
H7 1.456 0.835 -1.202

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.45171.45171.64421.64422.16972.1697
O21.45172.57712.52422.45553.28712.5502
O31.45172.57712.45552.52422.55023.2871
O41.64422.52422.45552.54812.85390.9790
O51.64422.45552.52422.54810.97902.8539
H62.16973.28712.55022.85390.97903.3559
H72.16972.55023.28710.97902.85393.3559

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 108.957 S1 O5 H6 108.957
O2 S1 O3 125.149 O2 S1 O4 109.087
O2 S1 O5 104.790 O3 S1 O4 104.790
O3 S1 O5 109.087 O4 S1 O5 101.588
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.085      
2 O -0.411      
3 O -0.411      
4 O -0.568      
5 O -0.568      
6 H 0.437      
7 H 0.437      


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 -3.199 3.199
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.284 5.809 0.000
y 5.809 -37.218 0.000
z 0.000 0.000 -34.379
Traceless
 xyz
x 2.514 5.809 0.000
y 5.809 -3.386 0.000
z 0.000 0.000 0.872
Polar
3z2-r21.743
x2-y23.934
xy5.809
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.307 0.298 0.000
y 0.298 4.968 0.000
z 0.000 0.000 4.358


<r2> (average value of r2) Å2
<r2> 106.715
(<r2>)1/2 10.330