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

using model chemistry: HF/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-2698.099528
Energy at 298.15K-2698.102321
HF Energy-2698.099528
Nuclear repulsion energy462.440146
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/6-31+G**
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 4095 3703 50.80      
2 A 1180 1067 102.91      
3 A 1039 939 79.15      
4 A 811 733 76.02      
5 A 409 369 126.06      
6 A 361 327 7.79      
7 A 300 272 3.95      
8 A 209 189 104.95      
9 B 4091 3699 382.63      
10 B 1216 1099 181.59      
11 B 1116 1009 98.18      
12 B 819 740 174.17      
13 B 411 372 125.48      
14 B 370 334 44.45      
15 B 303 274 61.12      

Unscaled Zero Point Vibrational Energy (zpe) 8364.0 cm-1
Scaled (by 0.9042) Zero Point Vibrational Energy (zpe) 7562.8 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 HF/6-31+G**
ABC
0.14727 0.13835 0.13557

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.122
O2 0.000 1.398 0.842
O3 0.000 -1.398 0.842
O4 1.309 -0.005 -0.965
O5 -1.309 0.005 -0.965
H6 1.629 -0.891 -1.099
H7 -1.629 0.891 -1.099

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.57261.57261.70181.70182.22252.2225
O21.57262.79672.63562.63073.41502.5845
O31.57262.79672.63072.63562.58453.4150
O41.70182.63562.63072.61890.95163.0747
O51.70182.63072.63562.61893.07470.9516
H62.22253.41502.58450.95163.07473.7131
H72.22252.58453.41503.07470.95163.7131

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 110.571 Se1 O5 H7 110.571
O2 Se1 O3 125.546 O2 Se1 O4 107.136
O2 Se1 O5 106.847 O3 Se1 O4 106.847
O3 Se1 O5 107.136 O4 Se1 O5 100.606
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 1.917      
2 O -0.697      
3 O -0.697      
4 O -0.674      
5 O -0.674      
6 H 0.413      
7 H 0.413      


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 -3.141 3.141
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.387 -6.610 0.000
y -6.610 -45.090 0.000
z 0.000 0.000 -42.275
Traceless
 xyz
x 7.296 -6.610 0.000
y -6.610 -5.759 0.000
z 0.000 0.000 -1.537
Polar
3z2-r2-3.074
x2-y28.703
xy-6.610
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.810 -0.238 0.000
y -0.238 5.545 0.000
z 0.000 0.000 4.796


<r2> (average value of r2) Å2
<r2> 120.533
(<r2>)1/2 10.979