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

using model chemistry: B1B95/CEP-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 B1B95/CEP-31G
 hartrees
Energy at 0K-74.800967
Energy at 298.15K-74.804593
Nuclear repulsion energy101.371684
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 B1B95/CEP-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3631 3476 74.91      
2 A 1091 1045 32.70      
3 A 841 805 124.93      
4 A 607 582 81.33      
5 A 334 320 72.00      
6 A 298 285 49.49      
7 A 238 228 7.04      
8 A 181 173 72.75      
9 B 3627 3473 154.29      
10 B 1156 1106 78.54      
11 B 929 890 61.44      
12 B 657 629 218.87      
13 B 331 316 14.29      
14 B 307 294 54.75      
15 B 183 176 108.57      

Unscaled Zero Point Vibrational Energy (zpe) 7204.8 cm-1
Scaled (by 0.9575) Zero Point Vibrational Energy (zpe) 6898.6 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 B1B95/CEP-31G
ABC
0.13173 0.12934 0.12699

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.197
O2 0.000 1.436 0.936
O3 0.000 -1.436 0.936
O4 1.371 -0.063 -0.975
O5 -1.371 0.063 -0.975
H6 -1.585 -0.865 -1.256
H7 1.585 0.865 -1.256

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.61441.61441.80481.80482.31792.3179
O21.61442.87102.78882.72273.55092.7644
O31.61442.87102.72272.78882.76443.5509
O41.80482.78882.72272.74483.07590.9934
O51.80482.72272.78882.74480.99343.0759
H62.31793.55092.76443.07590.99343.6121
H72.31792.76443.55090.99343.07593.6121

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 108.344 S1 O5 H6 108.344
O2 S1 O3 125.537 O2 S1 O4 109.174
O2 S1 O5 105.420 O3 S1 O4 105.420
O3 S1 O5 109.174 O4 S1 O5 99.004
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.845      
2 O -0.354      
3 O -0.354      
4 O -0.466      
5 O -0.466      
6 H 0.398      
7 H 0.398      


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 -2.942 2.942
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.284 7.215 0.000
y 7.215 -39.516 0.000
z 0.000 0.000 -36.534
Traceless
 xyz
x 3.742 7.215 0.000
y 7.215 -4.108 0.000
z 0.000 0.000 0.366
Polar
3z2-r20.733
x2-y25.233
xy7.215
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.524 0.250 0.000
y 0.250 6.466 0.000
z 0.000 0.000 5.643


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000