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

using model chemistry: HSEh1PBE/6-31G**

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/6-31G**
 hartrees
Energy at 0K-2700.729293
Energy at 298.15K-2700.731659
HF Energy-2700.729293
Nuclear repulsion energy452.481884
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/6-31G**
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 3816 3641 23.18      
2 A 1094 1044 98.66      
3 A 987 942 54.24      
4 A 709 676 65.90      
5 A 359 343 79.80      
6 A 324 309 8.50      
7 A 260 248 4.95      
8 A 174 166 75.99      
9 B 3812 3638 224.83      
10 B 1144 1092 134.42      
11 B 1051 1003 81.66      
12 B 725 692 147.66      
13 B 360 343 89.31      
14 B 327 312 35.46      
15 B 287 274 39.41      

Unscaled Zero Point Vibrational Energy (zpe) 7714.4 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 7361.8 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/6-31G**
ABC
0.14125 0.13219 0.12964

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.129
O2 0.000 1.430 0.852
O3 0.000 -1.430 0.852
O4 1.341 -0.010 -0.997
O5 -1.341 0.010 -0.997
H6 1.630 -0.935 -1.037
H7 -1.630 0.935 -1.037

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.60251.60251.75061.75062.21112.2111
O21.60252.85952.69982.68953.43762.5436
O31.60252.85952.68952.69982.54363.4376
O41.75062.69982.68952.68190.97023.1177
O51.75062.68952.69982.68193.11770.9702
H62.21113.43762.54360.97023.11773.7582
H72.21112.54363.43763.11770.97023.7582

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 105.070 Se1 O5 H7 105.070
O2 Se1 O3 126.304 O2 Se1 O4 107.173
O2 Se1 O5 106.582 O3 Se1 O4 106.582
O3 Se1 O5 107.173 O4 Se1 O5 99.992
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 1.406      
2 O -0.529      
3 O -0.529      
4 O -0.537      
5 O -0.537      
6 H 0.363      
7 H 0.363      


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 -2.300 2.300
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.964 -6.157 0.000
y -6.157 -42.216 0.000
z 0.000 0.000 -41.437
Traceless
 xyz
x 5.863 -6.157 0.000
y -6.157 -3.515 0.000
z 0.000 0.000 -2.347
Polar
3z2-r2-4.694
x2-y26.252
xy-6.157
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.818 -0.418 0.000
y -0.418 5.590 0.000
z 0.000 0.000 4.663


<r2> (average value of r2) Å2
<r2> 123.673
(<r2>)1/2 11.121