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

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-2701.452207
Energy at 298.15K-2701.454672
HF Energy-2701.452207
Nuclear repulsion energy457.507171
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 B3PW91/6-31G(2df,p)
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 3799 3653 35.14      
2 A 1086 1044 86.93      
3 A 1014 975 44.65      
4 A 735 707 68.77      
5 A 359 345 70.46      
6 A 336 323 1.49      
7 A 267 257 2.40      
8 A 178 171 78.35      
9 B 3795 3649 216.67      
10 B 1151 1106 139.39      
11 B 1076 1035 71.66      
12 B 743 714 142.56      
13 B 362 348 61.84      
14 B 348 335 45.51      
15 B 290 279 30.93      

Unscaled Zero Point Vibrational Energy (zpe) 7769.7 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 7469.7 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 B3PW91/6-31G(2df,p)
ABC
0.14344 0.13682 0.13195

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.131
O2 0.000 1.418 0.835
O3 0.000 -1.418 0.835
O4 1.331 0.023 -0.975
O5 -1.331 -0.023 -0.975
H6 1.596 -0.898 -1.112
H7 -1.596 0.898 -1.112

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.58351.58351.73031.73032.21322.2132
O21.58352.83642.64462.66913.42122.5708
O31.58352.83642.66912.64462.57083.4212
O41.73032.64462.66912.66170.96833.0575
O51.73032.66912.64462.66173.05750.9683
H62.21323.42122.57080.96833.05753.6622
H72.21322.57083.42123.05750.96833.6622

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 106.769 Se1 O5 H7 106.769
O2 Se1 O3 127.175 O2 Se1 O4 105.808
O2 Se1 O5 107.225 O3 Se1 O4 107.225
O3 Se1 O5 105.808 O4 Se1 O5 100.557
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 1.344      
2 O -0.484      
3 O -0.484      
4 O -0.541      
5 O -0.541      
6 H 0.353      
7 H 0.353      


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 -2.663 2.663
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.862 -5.618 0.000
y -5.618 -42.128 0.000
z 0.000 0.000 -40.118
Traceless
 xyz
x 5.261 -5.618 0.000
y -5.618 -4.138 0.000
z 0.000 0.000 -1.123
Polar
3z2-r2-2.246
x2-y26.267
xy-5.618
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.233 -0.326 0.000
y -0.326 5.748 0.000
z 0.000 0.000 5.083


<r2> (average value of r2) Å2
<r2> 121.240
(<r2>)1/2 11.011