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

using model chemistry: PBEPBEultrafine/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-2703.085371
Energy at 298.15K-2703.087471
HF Energy-2703.085371
Nuclear repulsion energy446.720276
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/aug-cc-pVTZ
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 3625 3584 31.51      
2 A 1058 1046 66.37      
3 A 924 914 51.71      
4 A 627 620 70.42      
5 A 331 327 46.71      
6 A 310 307 9.63      
7 A 239 236 1.38      
8 A 152 151 70.42      
9 B 3622 3581 179.76      
10 B 1100 1088 112.59      
11 B 989 978 91.49      
12 B 639 632 142.53      
13 B 334 331 38.48      
14 B 313 310 41.56      
15 B 264 261 32.08      

Unscaled Zero Point Vibrational Energy (zpe) 7263.4 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 7182.1 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 PBEPBEultrafine/aug-cc-pVTZ
ABC
0.13529 0.13086 0.12603

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.133
O2 0.000 1.439 0.861
O3 0.000 -1.439 0.861
O4 1.374 0.027 -1.005
O5 -1.374 -0.027 -1.005
H6 1.635 -0.911 -1.119
H7 -1.635 0.911 -1.119

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.61251.61251.78451.78452.25212.2521
O21.61252.87812.71342.74183.48072.6216
O31.61252.87812.74182.71342.62163.4807
O41.78452.71342.74182.74920.98003.1389
O51.78452.74182.71342.74923.13890.9800
H62.25213.48072.62160.98003.13893.7438
H72.25212.62163.48073.13890.98003.7438

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 105.376 Se1 O5 H7 105.376
O2 Se1 O3 126.367 O2 Se1 O4 105.918
O2 Se1 O5 107.524 O3 Se1 O4 107.524
O3 Se1 O5 105.918 O4 Se1 O5 100.762
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 2.215      
2 O -0.781      
3 O -0.781      
4 O -0.504      
5 O -0.504      
6 H 0.177      
7 H 0.177      


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 -2.420 2.420
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.551 -5.623 0.000
y -5.623 -43.408 0.000
z 0.000 0.000 -41.882
Traceless
 xyz
x 5.094 -5.623 0.000
y -5.623 -3.691 0.000
z 0.000 0.000 -1.403
Polar
3z2-r2-2.806
x2-y25.857
xy-5.623
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.024 -0.280 0.000
y -0.280 7.508 0.000
z 0.000 0.000 6.901


<r2> (average value of r2) Å2
<r2> 127.060
(<r2>)1/2 11.272