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

using model chemistry: TPSSh/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 TPSSh/6-31G*
 hartrees
Energy at 0K-700.206240
Energy at 298.15K-700.211090
HF Energy-700.206240
Nuclear repulsion energy283.450403
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 TPSSh/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 3668 3519 37.79      
2 A 1178 1130 91.16      
3 A 1163 1116 155.43      
4 A 774 742 106.55      
5 A 503 483 44.69      
6 A 410 393 29.08      
7 A 339 325 6.84      
8 A 230 221 94.35      
9 B 3664 3516 148.66      
10 B 1439 1380 262.53      
11 B 1176 1129 95.88      
12 B 841 806 326.32      
13 B 502 482 22.69      
14 B 455 437 50.85      
15 B 307 295 64.18      

Unscaled Zero Point Vibrational Energy (zpe) 8324.8 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 7986.9 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 TPSSh/6-31G*
ABC
0.16214 0.16026 0.15351

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.159
O2 0.000 1.270 0.829
O3 0.000 -1.270 0.829
O4 1.246 0.046 -0.851
O5 -1.246 -0.046 -0.851
H6 1.508 -0.860 -1.097
H7 -1.508 0.860 -1.097

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.43551.43551.60481.60482.14322.1432
O21.43552.54002.42312.47073.24362.4801
O31.43552.54002.47072.42312.48013.2436
O41.60482.42312.47072.49420.97492.8826
O51.60482.47072.42312.49422.88260.9749
H62.14323.24362.48010.97492.88263.4721
H72.14322.48013.24362.88260.97493.4721

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 47.153 S1 O5 H6 47.153
O2 S1 O3 124.425 O2 S1 O4 105.553
O2 S1 O5 108.583 O3 S1 O4 108.583
O3 S1 O5 105.553 O4 S1 O5 101.996
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.280      
2 O -0.476      
3 O -0.476      
4 O -0.616      
5 O -0.616      
6 H 0.452      
7 H 0.452      


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 -3.029 3.029
CHELPG        
AIM        
ESP        


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 4.073 -0.295 0.000
y -0.295 4.692 0.000
z 0.000 0.000 4.044


<r2> (average value of r2) Å2
<r2> 105.248
(<r2>)1/2 10.259