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

using model chemistry: PBEPBE/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-699.764619
Energy at 298.15K-699.769254
Nuclear repulsion energy278.241766
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/cc-pVDZ
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 3600 3579 30.14      
2 A 1111 1105 156.98      
3 A 1099 1092 54.77      
4 A 720 716 92.30      
5 A 462 460 31.76      
6 A 384 381 17.49      
7 A 316 314 3.17      
8 A 207 206 86.69      
9 B 3597 3576 144.95      
10 B 1360 1352 207.58      
11 B 1108 1101 81.34      
12 B 786 781 289.74      
13 B 474 471 15.91      
14 B 426 424 46.98      
15 B 289 287 44.79      

Unscaled Zero Point Vibrational Energy (zpe) 7968.9 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 7922.7 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/cc-pVDZ
ABC
0.15629 0.15456 0.14741

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.173
O2 0.000 1.313 0.847
O3 0.000 -1.313 0.847
O4 1.289 -0.051 -0.883
O5 -1.289 0.051 -0.883
H6 -1.466 -0.893 -1.101
H7 1.466 0.893 -1.101

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.47621.47621.66761.66762.13802.1380
O21.47622.62682.55332.49993.28862.4743
O31.47622.62682.49992.55332.47433.2886
O41.66762.55332.49992.58012.88860.9854
O51.66762.49992.55332.58010.98542.8886
H62.13803.28862.47432.88860.98543.4327
H72.13802.47433.28860.98542.88863.4327

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 104.435 S1 O5 H6 104.435
O2 S1 O3 125.672 O2 S1 O4 108.464
O2 S1 O5 105.183 O3 S1 O4 105.183
O3 S1 O5 108.464 O4 S1 O5 101.356
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.914      
2 O -0.369      
3 O -0.369      
4 O -0.277      
5 O -0.277      
6 H 0.189      
7 H 0.189      


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 -2.594 2.594
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.154 5.183 0.000
y 5.183 -35.731 0.000
z 0.000 0.000 -34.400
Traceless
 xyz
x 2.911 5.183 0.000
y 5.183 -2.454 0.000
z 0.000 0.000 -0.457
Polar
3z2-r2-0.914
x2-y23.576
xy5.183
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.229 0.351 0.000
y 0.351 4.929 0.000
z 0.000 0.000 4.136


<r2> (average value of r2) Å2
<r2> 108.294
(<r2>)1/2 10.406