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

using model chemistry: mPW1PW91/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 mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-700.162085
Energy at 298.15K-700.167013
Nuclear repulsion energy283.662037
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 mPW1PW91/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 3778 3620 40.06      
2 A 1183 1133 196.85      
3 A 1147 1100 58.90      
4 A 802 769 97.34      
5 A 507 486 50.49      
6 A 410 393 16.80      
7 A 346 332 1.70      
8 A 229 219 101.72      
9 B 3774 3616 219.05      
10 B 1432 1372 260.12      
11 B 1161 1112 87.59      
12 B 866 830 325.69      
13 B 518 497 31.78      
14 B 462 442 49.91      
15 B 307 294 55.11      

Unscaled Zero Point Vibrational Energy (zpe) 8460.4 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 8107.6 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 mPW1PW91/cc-pVDZ
ABC
0.16306 0.15998 0.15365

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.166
O2 0.000 1.289 0.836
O3 0.000 -1.289 0.836
O4 1.258 -0.040 -0.866
O5 -1.258 0.040 -0.866
H6 -1.462 -0.885 -1.083
H7 1.462 0.885 -1.083

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.45261.45261.62741.62742.11652.1165
O21.45262.57772.49892.45713.24732.4456
O31.45262.57772.45712.49892.44563.2473
O41.62742.49892.45712.51762.85640.9722
O51.62742.45712.49892.51760.97222.8564
H62.11653.24732.44562.85640.97223.4178
H72.11652.44563.24730.97222.85643.4178

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 106.258 S1 O5 H6 106.258
O2 S1 O3 125.057 O2 S1 O4 108.317
O2 S1 O5 105.693 O3 S1 O4 105.693
O3 S1 O5 108.317 O4 S1 O5 101.337
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.061      
2 O -0.421      
3 O -0.421      
4 O -0.309      
5 O -0.309      
6 H 0.200      
7 H 0.200      


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 -2.841 2.841
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.710 5.415 0.000
y 5.415 -36.039 0.000
z 0.000 0.000 -34.465
Traceless
 xyz
x 3.542 5.415 0.000
y 5.415 -2.951 0.000
z 0.000 0.000 -0.591
Polar
3z2-r2-1.181
x2-y24.329
xy5.415
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> 105.006
(<r2>)1/2 10.247