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

using model chemistry: PBE1PBE/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 PBE1PBE/6-31+G**
 hartrees
Energy at 0K-2700.779093
Energy at 298.15K-2700.781434
HF Energy-2700.779093
Nuclear repulsion energy451.895603
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 PBE1PBE/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 3806 3636 42.98      
2 A 1087 1038 79.34      
3 A 974 931 62.99      
4 A 690 659 78.61      
5 A 354 338 83.02      
6 A 328 313 6.28      
7 A 257 245 0.83      
8 A 176 168 88.63      
9 B 3803 3633 242.88      
10 B 1129 1079 139.73      
11 B 1042 995 95.69      
12 B 698 667 160.26      
13 B 358 342 70.57      
14 B 327 313 50.63      
15 B 286 274 38.70      

Unscaled Zero Point Vibrational Energy (zpe) 7657.7 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 7315.4 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 PBE1PBE/6-31+G**
ABC
0.13986 0.13318 0.12885

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.132
O2 0.000 1.432 0.848
O3 0.000 -1.432 0.848
O4 1.350 0.014 -0.989
O5 -1.350 -0.014 -0.989
H6 1.616 -0.911 -1.121
H7 -1.616 0.911 -1.121

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.60121.60121.75471.75472.23902.2390
O21.60122.86402.68512.69953.46162.6004
O31.60122.86402.69952.68512.60043.4616
O41.75472.68512.69952.69980.97153.1016
O51.75472.69952.68512.69983.10160.9715
H62.23903.46162.60040.97153.10163.7106
H72.23902.60043.46163.10160.97153.7106

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 106.885 Se1 O5 H7 106.885
O2 Se1 O3 126.852 O2 Se1 O4 106.193
O2 Se1 O5 107.021 O3 Se1 O4 107.021
O3 Se1 O5 106.193 O4 Se1 O5 100.585
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 1.398      
2 O -0.542      
3 O -0.542      
4 O -0.546      
5 O -0.546      
6 H 0.388      
7 H 0.388      


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 -2.642 2.642
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.435 -6.313 0.000
y -6.313 -43.788 0.000
z 0.000 0.000 -41.947
Traceless
 xyz
x 5.433 -6.313 0.000
y -6.313 -4.097 0.000
z 0.000 0.000 -1.336
Polar
3z2-r2-2.671
x2-y26.353
xy-6.313
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.788 -0.238 0.000
y -0.238 6.578 0.000
z 0.000 0.000 5.756


<r2> (average value of r2) Å2
<r2> 124.766
(<r2>)1/2 11.170