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

using model chemistry: PBEPBE/STO-3G

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/STO-3G
 hartrees
Energy at 0K-2671.787785
Energy at 298.15K-2671.788487
HF Energy-2671.787785
Nuclear repulsion energy410.914106
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/STO-3G
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 3497 3195 2.24      
2 A 1149 1050 17.42      
3 A 753 688 16.40      
4 A 512 467 18.73      
5 A 299 273 39.30      
6 A 158 144 4.74      
7 A 132 121 10.38      
8 A 107 98 0.63      
9 B 3498 3196 58.28      
10 B 1172 1070 33.20      
11 B 833 761 11.76      
12 B 527 481 54.22      
13 B 290 265 34.97      
14 B 203 185 3.63      
15 B 183 167 12.09      

Unscaled Zero Point Vibrational Energy (zpe) 6655.4 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 6080.3 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/STO-3G
ABC
0.12088 0.11023 0.10136

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.189
O2 0.000 1.618 0.807
O3 0.000 -1.618 0.807
O4 1.525 -0.048 -1.080
O5 -1.525 0.048 -1.080
H6 1.682 -1.085 -1.031
H7 -1.682 1.085 -1.031

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.73201.73201.98501.98502.34382.3438
O21.73203.23602.94342.89023.67582.5476
O31.73203.23602.89022.94342.54763.6758
O41.98502.94342.89023.05221.04973.4016
O51.98502.89022.94343.05223.40161.0497
H62.34383.67582.54761.04973.40164.0024
H72.34382.54763.67583.40161.04974.0024

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 96.219 Se1 O5 H7 96.219
O2 Se1 O3 138.194 O2 Se1 O4 104.521
O2 Se1 O5 101.862 O3 Se1 O4 101.862
O3 Se1 O5 104.521 O4 Se1 O5 100.497
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 0.756      
2 O -0.277      
3 O -0.277      
4 O -0.244      
5 O -0.244      
6 H 0.143      
7 H 0.143      


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 -0.309 0.309
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.950 -3.706 0.000
y -3.706 -38.174 0.000
z 0.000 0.000 -37.743
Traceless
 xyz
x 2.009 -3.706 0.000
y -3.706 -1.327 0.000
z 0.000 0.000 -0.681
Polar
3z2-r2-1.363
x2-y22.224
xy-3.706
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.144 -0.871 0.000
y -0.871 5.111 0.000
z 0.000 0.000 3.228


<r2> (average value of r2) Å2
<r2> 142.881
(<r2>)1/2 11.953