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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-700.149979
Energy at 298.15K-700.155074
Nuclear repulsion energy286.447991
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 B3PW91/6-311G*
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 3771 3631 51.68      
2 A 1204 1159 133.13      
3 A 1159 1116 135.86      
4 A 796 766 130.92      
5 A 523 503 69.23      
6 A 443 427 40.92      
7 A 367 354 9.58      
8 A 274 264 85.60      
9 B 3768 3627 145.12      
10 B 1459 1405 304.31      
11 B 1174 1130 94.87      
12 B 855 823 372.71      
13 B 531 511 25.95      
14 B 479 461 61.18      
15 B 336 323 86.89      

Unscaled Zero Point Vibrational Energy (zpe) 8569.2 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 8249.6 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 B3PW91/6-311G*
ABC
0.16535 0.16335 0.15726

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.167
O2 0.000 1.270 0.832
O3 0.000 -1.270 0.832
O4 1.248 -0.054 -0.852
O5 -1.248 0.054 -0.852
H6 -1.458 -0.833 -1.177
H7 1.458 0.833 -1.177

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.43321.43321.61221.61222.15112.1511
O21.43322.53932.47872.42323.25342.5205
O31.43322.53932.42322.47872.52053.2534
O41.61222.47872.42322.49912.83530.9677
O51.61222.42322.47872.49910.96772.8353
H62.15113.25342.52052.83530.96773.3587
H72.15112.52053.25340.96772.83533.3587

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 110.479 S1 O5 H6 110.479
O2 S1 O3 124.724 O2 S1 O4 108.818
O2 S1 O5 105.289 O3 S1 O4 105.289
O3 S1 O5 108.818 O4 S1 O5 101.619
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.234      
2 O -0.462      
3 O -0.462      
4 O -0.611      
5 O -0.611      
6 H 0.455      
7 H 0.455      


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 -3.363 3.363
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.683 5.993 0.000
y 5.993 -37.301 0.000
z 0.000 0.000 -34.348
Traceless
 xyz
x 3.141 5.993 0.000
y 5.993 -3.785 0.000
z 0.000 0.000 0.644
Polar
3z2-r21.289
x2-y24.618
xy5.993
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 104.032
(<r2>)1/2 10.200