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

using model chemistry: HF/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 HF/6-31G*
 hartrees
Energy at 0K-2698.036725
Energy at 298.15K-2698.039581
HF Energy-2698.036725
Nuclear repulsion energy462.792005
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 HF/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 4034 3625 33.13      
2 A 1250 1123 118.59      
3 A 1055 948 78.71      
4 A 829 745 65.30      
5 A 417 375 136.96      
6 A 364 327 6.19      
7 A 303 272 6.52      
8 A 217 195 91.55      
9 B 4030 3621 374.02      
10 B 1286 1155 175.68      
11 B 1136 1021 94.08      
12 B 844 759 166.90      
13 B 416 374 147.29      
14 B 373 336 35.83      
15 B 321 288 53.68      

Unscaled Zero Point Vibrational Energy (zpe) 8437.7 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 7581.3 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 HF/6-31G*
ABC
0.14828 0.13783 0.13588

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.121
O2 0.000 1.397 0.842
O3 0.000 -1.397 0.842
O4 1.306 -0.018 -0.968
O5 -1.306 0.018 -0.968
H6 1.628 -0.914 -1.049
H7 -1.628 0.914 -1.049

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.57261.57261.70041.70042.20262.2026
O21.57262.79432.64332.62393.40082.5417
O31.57262.79432.62392.64332.54173.4008
O41.70042.64332.62392.61280.95473.0794
O51.70042.62392.64332.61283.07940.9547
H62.20263.40082.54170.95473.07943.7330
H72.20262.54173.40083.07940.95473.7330

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 108.844 Se1 O5 H7 108.844
O2 Se1 O3 125.353 O2 Se1 O4 107.659
O2 Se1 O5 106.515 O3 Se1 O4 106.515
O3 Se1 O5 107.659 O4 Se1 O5 100.402
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 1.898      
2 O -0.682      
3 O -0.682      
4 O -0.766      
5 O -0.766      
6 H 0.499      
7 H 0.499      


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 -2.845 2.845
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.783 -6.583 0.000
y -6.583 -43.926 0.000
z 0.000 0.000 -42.042
Traceless
 xyz
x 7.201 -6.583 0.000
y -6.583 -5.014 0.000
z 0.000 0.000 -2.188
Polar
3z2-r2-4.375
x2-y28.143
xy-6.583
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.134 -0.342 0.000
y -0.342 4.830 0.000
z 0.000 0.000 4.026


<r2> (average value of r2) Å2
<r2> 119.892
(<r2>)1/2 10.950