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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-2700.678772
Energy at 298.15K-2700.680825
HF Energy-2700.678772
Nuclear repulsion energy443.776971
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 PBEPBEultrafine/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 3575 3516 18.79      
2 A 1109 1091 81.93      
3 A 937 921 49.80      
4 A 624 614 62.29      
5 A 330 324 64.76      
6 A 306 301 5.28      
7 A 234 230 4.56      
8 A 147 144 67.97      
9 B 3572 3513 146.36      
10 B 1149 1130 111.41      
11 B 1005 989 80.85      
12 B 642 632 136.04      
13 B 331 326 69.78      
14 B 308 303 32.05      
15 B 276 271 31.69      

Unscaled Zero Point Vibrational Energy (zpe) 7271.5 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 7151.6 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 PBEPBEultrafine/6-31G*
ABC
0.13530 0.12769 0.12431

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.134
O2 0.000 1.454 0.863
O3 0.000 -1.454 0.863
O4 1.377 -0.004 -1.018
O5 -1.377 0.004 -1.018
H6 1.651 -0.952 -1.036
H7 -1.651 0.952 -1.036

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.62611.62611.79601.79602.23622.2362
O21.62612.90782.74962.74553.48092.5658
O31.62612.90782.74552.74962.56583.4809
O41.79602.74962.74552.75440.98663.1751
O51.79602.74552.74962.75443.17510.9866
H62.23623.48092.56580.98663.17513.8106
H72.23622.56583.48093.17510.98663.8106

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 103.076 Se1 O5 H7 103.076
O2 Se1 O3 126.780 O2 Se1 O4 106.821
O2 Se1 O5 106.595 O3 Se1 O4 106.595
O3 Se1 O5 106.821 O4 Se1 O5 100.141
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 1.224      
2 O -0.468      
3 O -0.468      
4 O -0.571      
5 O -0.571      
6 H 0.426      
7 H 0.426      


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 -1.985 1.985
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.405 -6.059 0.000
y -6.059 -41.634 0.000
z 0.000 0.000 -41.494
Traceless
 xyz
x 5.159 -6.059 0.000
y -6.059 -2.684 0.000
z 0.000 0.000 -2.474
Polar
3z2-r2-4.949
x2-y25.228
xy-6.059
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.264 -0.473 0.000
y -0.473 6.000 0.000
z 0.000 0.000 5.021


<r2> (average value of r2) Å2
<r2> 127.578
(<r2>)1/2 11.295