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

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-699.747327
Energy at 298.15K-699.751014
Nuclear repulsion energy258.894551
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 B3PW91/6-31G
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 3565 3414 45.25      
2 A 1124 1077 43.27      
3 A 890 852 115.87      
4 A 631 604 68.30      
5 A 363 348 46.10      
6 A 290 278 43.77      
7 A 223 214 0.79      
8 A 149 143 123.90      
9 B 3561 3411 151.21      
10 B 1206 1155 84.38      
11 B 986 944 61.21      
12 B 694 665 217.90      
13 B 344 330 22.24      
14 B 324 311 59.72      
15 B 185 177 94.31      

Unscaled Zero Point Vibrational Energy (zpe) 7267.9 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 6960.5 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 B3PW91/6-31G
ABC
0.13537 0.13169 0.12847

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.181
O2 0.000 1.419 0.924
O3 0.000 -1.419 0.924
O4 1.366 -0.031 -0.965
O5 -1.366 0.031 -0.965
H6 -1.644 -0.905 -1.121
H7 1.644 0.905 -1.121

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.60171.60171.78351.78352.28462.2846
O21.60172.83832.74522.71353.50552.6737
O31.60172.83832.71352.74522.67373.5055
O41.78352.74522.71352.73183.13840.9890
O51.78352.71352.74522.73180.98903.1384
H62.28463.50552.67373.13840.98903.7545
H72.28462.67373.50550.98903.13843.7545

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 107.496 S1 O5 H6 107.496
O2 S1 O3 124.758 O2 S1 O4 108.259
O2 S1 O5 106.435 O3 S1 O4 106.435
O3 S1 O5 108.259 O4 S1 O5 99.965
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.401      
2 O -0.515      
3 O -0.515      
4 O -0.612      
5 O -0.612      
6 H 0.427      
7 H 0.427      


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 -2.513 2.513
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.016 7.297 0.000
y 7.297 -38.904 0.000
z 0.000 0.000 -37.705
Traceless
 xyz
x 5.289 7.297 0.000
y 7.297 -3.544 0.000
z 0.000 0.000 -1.745
Polar
3z2-r2-3.490
x2-y25.888
xy7.297
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> 123.558
(<r2>)1/2 11.116