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All results from a given calculation for H2SeO4 (Selenic acid)

using model chemistry: PBEPBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBE/6-311G*
 hartrees
Energy at 0K-2702.916990
Energy at 298.15K-2702.919018
HF Energy-2702.916990
Nuclear repulsion energy442.656686
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 PBEPBE/6-311G*
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 3598 3561 30.58      
2 A 1064 1053 70.64      
3 A 892 883 55.79      
4 A 596 590 67.82      
5 A 331 328 87.18      
6 A 308 305 0.10      
7 A 231 228 0.65      
8 A 165 163 80.71      
9 B 3596 3558 111.07      
10 B 1106 1094 110.58      
11 B 965 955 84.22      
12 B 611 605 140.15      
13 B 330 326 63.97      
14 B 312 308 47.93      
15 B 262 259 26.77      

Unscaled Zero Point Vibrational Energy (zpe) 7182.7 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 7108.0 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 PBEPBE/6-311G*
ABC
0.13268 0.12892 0.12322

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.143
O2 0.000 1.456 0.856
O3 0.000 -1.456 0.856
O4 1.393 0.032 -1.012
O5 -1.393 -0.032 -1.012
H6 1.619 -0.908 -1.176
H7 -1.619 0.908 -1.176

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.62091.62091.80951.80952.27672.2767
O21.62092.91112.73032.76473.51212.6547
O31.62092.91112.76472.73032.65473.5121
O41.80952.73032.76472.78640.98113.1408
O51.80952.76472.73032.78643.14080.9811
H62.27673.51212.65470.98113.14083.7127
H72.27672.65473.51213.14080.98113.7127

picture of Selenic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 O4 H6 105.461 Se1 O5 H7 105.461
O2 Se1 O3 127.785 O2 Se1 O4 105.349
O2 Se1 O5 107.272 O3 Se1 O4 107.272
O3 Se1 O5 105.349 O4 Se1 O5 100.697
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 1.095      
2 O -0.416      
3 O -0.416      
4 O -0.547      
5 O -0.547      
6 H 0.417      
7 H 0.417      


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 -2.318 2.318
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.739 -6.344 0.000
y -6.344 -42.588 0.000
z 0.000 0.000 -40.920
Traceless
 xyz
x 4.014 -6.344 0.000
y -6.344 -3.258 0.000
z 0.000 0.000 -0.756
Polar
3z2-r2-1.513
x2-y24.848
xy-6.344
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.497 -0.364 0.000
y -0.364 6.220 0.000
z 0.000 0.000 5.311


<r2> (average value of r2) Å2
<r2> 128.654
(<r2>)1/2 11.343