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

using model chemistry: B3LYP/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/CEP-121G*
 hartrees
Energy at 0K-75.199179
Energy at 298.15K-75.204068
Nuclear repulsion energy111.012070
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 B3LYP/CEP-121G*
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 3720 3606 42.61      
2 A 1163 1128 26.05      
3 A 1142 1107 227.53      
4 A 758 735 107.72      
5 A 497 481 49.82      
6 A 415 402 31.10      
7 A 344 333 5.88      
8 A 244 237 90.01      
9 B 3716 3602 143.47      
10 B 1396 1353 275.02      
11 B 1166 1131 108.55      
12 B 819 794 322.75      
13 B 502 486 23.49      
14 B 455 441 52.93      
15 B 321 311 65.81      

Unscaled Zero Point Vibrational Energy (zpe) 8327.9 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 8073.1 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 B3LYP/CEP-121G*
ABC
0.16021 0.15795 0.15167

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.218
O2 0.000 1.294 0.893
O3 0.000 -1.294 0.893
O4 1.271 -0.047 -0.819
O5 -1.271 0.047 -0.819
H6 -1.460 -0.869 -1.099
H7 1.460 0.869 -1.099

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.45951.45951.64111.64112.15012.1501
O21.45952.58802.51922.46993.28342.5061
O31.45952.58802.46992.51922.50613.2834
O41.64112.51922.46992.54412.86630.9772
O51.64112.46992.51922.54410.97722.8663
H62.15013.28342.50612.86630.97723.3994
H72.15012.50613.28340.97722.86633.3994

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 107.691 S1 O5 H6 107.691
O2 S1 O3 124.900 O2 S1 O4 108.535
O2 S1 O5 105.462 O3 S1 O4 105.462
O3 S1 O5 108.535 O4 S1 O5 101.628
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.815      
2 O -0.362      
3 O -0.362      
4 O -0.496      
5 O -0.496      
6 H 0.450      
7 H 0.450      


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 -3.121 3.121
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.069 5.808 0.000
y 5.808 -36.211 0.000
z 0.000 0.000 -34.390
Traceless
 xyz
x 3.232 5.808 0.000
y 5.808 -2.981 0.000
z 0.000 0.000 -0.251
Polar
3z2-r2-0.501
x2-y24.142
xy5.808
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.496 0.266 0.000
y 0.266 5.104 0.000
z 0.000 0.000 4.474


<r2> (average value of r2) Å2
<r2> 86.981
(<r2>)1/2 9.326