return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: HSEh1PBE/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-2703.134791
Energy at 298.15K-2703.137239
HF Energy-2703.134791
Nuclear repulsion energy455.941053
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/cc-pVTZ
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 3651 33.84      
2 A 1100 1057 81.00      
3 A 993 955 54.86      
4 A 715 688 74.53      
5 A 366 352 65.56      
6 A 332 319 10.37      
7 A 268 258 3.04      
8 A 177 170 80.39      
9 B 3795 3648 240.09      
10 B 1147 1102 133.75      
11 B 1059 1018 82.44      
12 B 725 697 155.19      
13 B 368 354 64.88      
14 B 341 328 40.66      
15 B 279 268 42.31      

Unscaled Zero Point Vibrational Energy (zpe) 7732.1 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 7431.3 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 HSEh1PBE/cc-pVTZ
ABC
0.14192 0.13534 0.13174

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.127
O2 0.000 1.412 0.851
O3 0.000 -1.412 0.851
O4 1.338 0.011 -0.984
O5 -1.338 -0.011 -0.984
H6 1.626 -0.907 -1.087
H7 -1.626 0.907 -1.087

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.58651.58651.73851.73852.22192.2219
O21.58652.82322.66782.67923.43092.5788
O31.58652.82322.67922.66782.57883.4309
O41.73852.66782.67922.67520.96733.0973
O51.73852.67922.66782.67523.09730.9673
H62.22193.43092.57880.96733.09733.7228
H72.22192.57883.43093.09730.96733.7228

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 106.921 Se1 O5 H7 106.921
O2 Se1 O3 125.693 O2 Se1 O4 106.619
O2 Se1 O5 107.280 O3 Se1 O4 107.280
O3 Se1 O5 106.619 O4 Se1 O5 100.598
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 1.159      
2 O -0.473      
3 O -0.473      
4 O -0.333      
5 O -0.333      
6 H 0.226      
7 H 0.226      


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 -2.666 2.666
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.171 -5.884 0.000
y -5.884 -42.983 0.000
z 0.000 0.000 -41.238
Traceless
 xyz
x 5.940 -5.884 0.000
y -5.884 -4.278 0.000
z 0.000 0.000 -1.662
Polar
3z2-r2-3.323
x2-y26.812
xy-5.884
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.380 -0.315 0.000
y -0.315 6.060 0.000
z 0.000 0.000 5.301


<r2> (average value of r2) Å2
<r2> 122.478
(<r2>)1/2 11.067