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

using model chemistry: TPSSh/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 TPSSh/6-31+G**
 hartrees
Energy at 0K-2701.298892
Energy at 298.15K-2701.301054
HF Energy-2701.298892
Nuclear repulsion energy447.306332
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 TPSSh/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 3711 3572 41.54      
2 A 1067 1027 66.70      
3 A 941 906 61.82      
4 A 645 620 78.03      
5 A 336 324 77.46      
6 A 317 305 3.21      
7 A 243 234 0.01      
8 A 164 158 84.29      
9 B 3707 3568 188.80      
10 B 1109 1068 123.30      
11 B 1009 972 95.06      
12 B 653 629 157.34      
13 B 341 328 52.77      
14 B 315 303 59.04      
15 B 273 263 30.03      

Unscaled Zero Point Vibrational Energy (zpe) 7416.0 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 7137.9 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 TPSSh/6-31+G**
ABC
0.13623 0.13121 0.12607

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.129
O2 0.000 1.442 0.863
O3 0.000 -1.442 0.863
O4 1.354 -0.002 -1.001
O5 -1.354 0.002 -1.001
H6 1.690 -0.912 -1.087
H7 -1.690 0.912 -1.087

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.61761.61761.76361.76362.27312.2731
O21.61762.88342.71872.71643.49262.6337
O31.61762.88342.71642.71872.63373.4926
O41.76362.71872.71642.70800.97423.1798
O51.76362.71642.71872.70803.17980.9742
H62.27313.49262.63370.97423.17983.8416
H72.27312.63373.49263.17980.97423.8416

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 108.807 Se1 O5 H7 108.807
O2 Se1 O3 126.060 O2 Se1 O4 106.959
O2 Se1 O5 106.828 O3 Se1 O4 106.828
O3 Se1 O5 106.959 O4 Se1 O5 100.304
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 1.326      
2 O -0.515      
3 O -0.515      
4 O -0.530      
5 O -0.530      
6 H 0.382      
7 H 0.382      


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 -2.583 2.583
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.111 -0.231 0.000
y -0.231 6.891 0.000
z 0.000 0.000 6.058


<r2> (average value of r2) Å2
<r2> 126.830
(<r2>)1/2 11.262