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

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G*
 hartrees
Energy at 0K-2700.711667
Energy at 298.15K-2700.714047
HF Energy-2700.711667
Nuclear repulsion energy452.753517
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/6-31G*
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 3753 3566 23.69      
2 A 1156 1098 95.58      
3 A 993 944 58.47      
4 A 712 676 66.43      
5 A 360 343 82.63      
6 A 326 310 7.53      
7 A 260 247 5.28      
8 A 170 161 77.90      
9 B 3750 3563 222.65      
10 B 1196 1137 132.47      
11 B 1065 1013 86.42      
12 B 729 692 148.28      
13 B 362 344 92.30      
14 B 330 314 32.42      
15 B 293 279 42.46      

Unscaled Zero Point Vibrational Energy (zpe) 7727.2 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 7343.1 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/6-31G*
ABC
0.14155 0.13242 0.12966

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.128
O2 0.000 1.429 0.851
O3 0.000 -1.429 0.851
O4 1.341 -0.010 -0.995
O5 -1.341 0.010 -0.995
H6 1.631 -0.939 -1.034
H7 -1.631 0.939 -1.034

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.60111.60111.74951.74952.21202.2120
O21.60112.85782.69752.68643.43812.5399
O31.60112.85782.68642.69752.53993.4381
O41.74952.69752.68642.68290.97383.1203
O51.74952.68642.69752.68293.12030.9738
H62.21203.43812.53990.97383.12033.7637
H72.21202.53993.43813.12030.97383.7637

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 105.037 Se1 O5 H7 105.037
O2 Se1 O3 126.361 O2 Se1 O4 107.154
O2 Se1 O5 106.517 O3 Se1 O4 106.517
O3 Se1 O5 107.154 O4 Se1 O5 100.130
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 1.403      
2 O -0.529      
3 O -0.529      
4 O -0.628      
5 O -0.628      
6 H 0.455      
7 H 0.455      


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 -2.283 2.283
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.031 -6.258 0.000
y -6.258 -42.169 0.000
z 0.000 0.000 -41.504
Traceless
 xyz
x 5.805 -6.258 0.000
y -6.258 -3.401 0.000
z 0.000 0.000 -2.404
Polar
3z2-r2-4.808
x2-y26.138
xy-6.258
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.788 -0.409 0.000
y -0.409 5.558 0.000
z 0.000 0.000 4.629


<r2> (average value of r2) Å2
<r2> 123.573
(<r2>)1/2 11.116