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

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-699.799934
Energy at 298.15K 
HF Energy-699.509887
Nuclear repulsion energy284.357165
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 B2PLYP/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 3711 3523 45.45      
2 A 1194 1134 5.22      
3 A 1186 1126 251.64      
4 A 789 749 109.61      
5 A 518 492 51.17      
6 A 417 396 24.20      
7 A 349 331 4.93      
8 A 230 218 107.23      
9 B 3707 3519 187.82      
10 B 1455 1381 263.49      
11 B 1199 1138 101.52      
12 B 860 817 334.31      
13 B 516 490 27.74      
14 B 470 447 50.90      
15 B 305 290 68.27      

Unscaled Zero Point Vibrational Energy (zpe) 8454.0 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 8024.6 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 B2PLYP/6-31G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.166
O2 0.000 1.282 0.835
O3 0.000 -1.282 0.835
O4 1.258 -0.045 -0.861
O5 -1.258 0.045 -0.861
H6 -1.467 -0.874 -1.117
H7 1.467 0.874 -1.117

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.44581.44581.62421.62422.13592.1359
O21.44582.56332.49332.44703.25732.4758
O31.44582.56332.44702.49332.47583.2573
O41.62422.49332.44702.51682.85950.9764
O51.62422.44702.49332.51680.97642.8595
H62.13593.25732.47582.85950.97643.4151
H72.13592.47583.25730.97642.85953.4151

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 107.825 S1 O5 H6 107.825
O2 S1 O3 124.866 O2 S1 O4 108.478
O2 S1 O5 105.558 O3 S1 O4 105.558
O3 S1 O5 108.478 O4 S1 O5 101.574
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.470      
2 O -0.539      
3 O -0.539      
4 O -0.669      
5 O -0.669      
6 H 0.473      
7 H 0.473      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.964 0.297 0.000
y 0.297 4.608 0.000
z 0.000 0.000 3.938


<r2> (average value of r2) Å2
<r2> 104.976
(<r2>)1/2 10.246