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

using model chemistry: HF/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 HF/6-311G*
 hartrees
Energy at 0K-698.133263
Energy at 298.15K-698.138766
Nuclear repulsion energy293.928000
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 HF/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 4113 3720 73.19      
2 A 1320 1193 212.72      
3 A 1274 1152 168.30      
4 A 950 859 130.14      
5 A 610 551 116.11      
6 A 487 440 24.58      
7 A 418 378 3.53      
8 A 297 269 135.24      
9 B 4108 3716 282.88      
10 B 1577 1427 443.62      
11 B 1290 1167 119.32      
12 B 1004 908 441.15      
13 B 620 561 72.67      
14 B 549 496 64.61      
15 B 353 320 106.84      

Unscaled Zero Point Vibrational Energy (zpe) 9484.6 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 8577.9 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 HF/6-311G*
ABC
0.17562 0.17046 0.16584

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.154
O2 0.000 1.236 0.816
O3 0.000 -1.236 0.816
O4 1.212 -0.029 -0.830
O5 -1.212 0.029 -0.830
H6 -1.475 -0.831 -1.121
H7 1.475 0.831 -1.121

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.40171.40171.56211.56212.11972.1197
O21.40172.47132.40432.37413.19382.4680
O31.40172.47132.37412.40432.46803.1938
O41.56212.40432.37412.42502.81940.9455
O51.56212.37412.40432.42500.94552.8194
H62.11973.19382.46802.81940.94553.3865
H72.11972.46803.19380.94552.81943.3865

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 113.102 S1 O5 H6 113.102
O2 S1 O3 123.649 O2 S1 O4 108.310
O2 S1 O5 106.333 O3 S1 O4 106.333
O3 S1 O5 108.310 O4 S1 O5 101.830
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.638 1.690   1.576
2 O -0.598 -0.645   -0.612
3 O -0.598 -0.645   -0.611
4 O -0.714 -0.718   -0.701
5 O -0.714 -0.718   -0.699
6 H 0.493 0.519   0.523
7 H 0.493 0.519   0.524


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 -3.699 3.699
CHELPG        
AIM        
ESP -0.002 0.003 -3.677 3.677


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.837 6.318 0.000
y 6.318 -38.103 0.000
z 0.000 0.000 -35.027
Traceless
 xyz
x 4.728 6.318 0.000
y 6.318 -4.672 0.000
z 0.000 0.000 -0.056
Polar
3z2-r2-0.113
x2-y26.266
xy6.318
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.307 0.276 0.000
y 0.276 3.923 0.000
z 0.000 0.000 3.317


<r2> (average value of r2) Å2
<r2> 100.126
(<r2>)1/2 10.006