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

using model chemistry: HF/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/cc-pVDZ
 hartrees
Energy at 0K-2700.275725
Energy at 298.15K-2700.278543
HF Energy-2700.275725
Nuclear repulsion energy460.910481
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 HF/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 4062 3688 45.96      
2 A 1171 1064 90.15      
3 A 1025 930 79.28      
4 A 809 735 69.56      
5 A 413 375 134.96      
6 A 360 327 5.28      
7 A 304 276 2.55      
8 A 213 194 99.87      
9 B 4058 3685 387.15      
10 B 1210 1099 154.22      
11 B 1103 1001 92.31      
12 B 815 740 169.11      
13 B 416 377 130.18      
14 B 375 341 46.06      
15 B 296 269 54.08      

Unscaled Zero Point Vibrational Energy (zpe) 8315.7 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 7550.6 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 HF/cc-pVDZ
ABC
0.14539 0.13773 0.13502

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.126
O2 0.000 1.399 0.844
O3 0.000 -1.399 0.844
O4 1.316 0.005 -0.972
O5 -1.316 -0.005 -0.972
H6 1.617 -0.889 -1.117
H7 -1.617 0.889 -1.117

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.57291.57291.71371.71372.22452.2245
O21.57292.79832.64112.64643.41982.5926
O31.57292.79832.64642.64112.59263.4198
O41.71372.64112.64642.63110.95413.0663
O51.71372.64642.64112.63113.06630.9541
H62.22453.41982.59260.95413.06633.6903
H72.22452.59263.41983.06630.95413.6903

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 109.680 Se1 O5 H7 109.680
O2 Se1 O3 125.629 O2 Se1 O4 106.869
O2 Se1 O5 107.181 O3 Se1 O4 107.181
O3 Se1 O5 106.869 O4 Se1 O5 100.289
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 1.786      
2 O -0.642      
3 O -0.642      
4 O -0.470      
5 O -0.470      
6 H 0.219      
7 H 0.219      


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 -2.984 2.984
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.176 -6.316 0.000
y -6.316 -44.394 0.000
z 0.000 0.000 -41.485
Traceless
 xyz
x 6.763 -6.316 0.000
y -6.316 -5.563 0.000
z 0.000 0.000 -1.201
Polar
3z2-r2-2.401
x2-y28.217
xy-6.316
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.020 -0.318 0.000
y -0.318 4.774 0.000
z 0.000 0.000 3.930


<r2> (average value of r2) Å2
<r2> 120.806
(<r2>)1/2 10.991