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

using model chemistry: HSEh1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HSEh1PBE/3-21G
 hartrees
Energy at 0K-2689.861276
Energy at 298.15K-2689.863381
HF Energy-2689.861276
Nuclear repulsion energy443.269828
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 HSEh1PBE/3-21G
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 3508 3379 8.05      
2 A 1090 1050 114.01      
3 A 943 908 27.78      
4 A 705 679 48.27      
5 A 362 349 77.91      
6 A 337 325 22.92      
7 A 233 225 0.85      
8 A 139 134 13.12      
9 B 3508 3379 149.82      
10 B 1090 1050 56.35      
11 B 1008 971 41.20      
12 B 723 696 128.11      
13 B 340 328 99.50      
14 B 310 298 41.52      
15 B 190 183 224.52      

Unscaled Zero Point Vibrational Energy (zpe) 7242.8 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 6977.0 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 HSEh1PBE/3-21G
ABC
0.13511 0.13186 0.12071

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.123
O2 -1.432 -0.096 0.931
O3 1.432 0.096 0.931
O4 0.000 1.288 -1.090
O5 0.000 -1.288 -1.090
H6 0.651 1.999 -0.832
H7 -0.651 -1.999 -0.832

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.64661.64661.76961.76962.30902.3090
O21.64662.86962.83732.74893.44012.7088
O31.64662.86962.74892.83732.70883.4401
O41.76962.83732.74892.57620.99803.3607
O51.76962.74892.83732.57623.36070.9980
H62.30903.44012.70880.99803.36074.2044
H72.30902.70883.44013.36070.99804.2044

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 109.932 Se1 O5 H7 109.932
O2 Se1 O3 121.235 O2 Se1 O4 112.259
O2 Se1 O5 107.100 O3 Se1 O4 107.100
O3 Se1 O5 112.259 O4 Se1 O5 93.424
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 1.778      
2 O -0.622      
3 O -0.622      
4 O -0.672      
5 O -0.672      
6 H 0.405      
7 H 0.405      


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 -1.107 1.107
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.552 5.229 0.000
y 5.229 -29.882 0.000
z 0.000 0.000 -46.023
Traceless
 xyz
x -7.599 5.229 0.000
y 5.229 15.905 0.000
z 0.000 0.000 -8.306
Polar
3z2-r2-16.612
x2-y2-15.670
xy5.229
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.807 0.791 0.000
y 0.791 4.716 0.000
z 0.000 0.000 4.331


<r2> (average value of r2) Å2
<r2> 128.396
(<r2>)1/2 11.331