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

using model chemistry: LSDA/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 LSDA/aug-cc-pVTZ
 hartrees
Energy at 0K-2699.618692
Energy at 298.15K-2699.620903
HF Energy-2699.618692
Nuclear repulsion energy454.052816
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 LSDA/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 3639 3604 27.66      
2 A 1039 1029 92.59      
3 A 966 957 44.44      
4 A 682 676 71.91      
5 A 342 339 49.94      
6 A 315 312 11.85      
7 A 248 246 6.16      
8 A 145 144 68.84      
9 B 3635 3601 245.26      
10 B 1096 1086 137.31      
11 B 1019 1009 83.31      
12 B 695 688 149.77      
13 B 345 342 48.02      
14 B 316 313 43.40      
15 B 272 269 41.06      

Unscaled Zero Point Vibrational Energy (zpe) 7375.8 cm-1
Scaled (by 0.9906) Zero Point Vibrational Energy (zpe) 7306.4 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 LSDA/aug-cc-pVTZ
ABC
0.14170 0.13407 0.13013

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.128
O2 0.000 1.421 0.847
O3 0.000 -1.421 0.847
O4 1.343 0.003 -0.989
O5 -1.343 -0.003 -0.989
H6 1.650 -0.928 -1.038
H7 -1.650 0.928 -1.038

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.59291.59291.74631.74632.22352.2235
O21.59292.84292.68042.68313.43442.5531
O31.59292.84292.68312.68042.55313.4344
O41.74632.68042.68312.68560.98143.1335
O51.74632.68312.68042.68563.13350.9814
H62.22353.43442.55310.98143.13353.7870
H72.22352.55313.43443.13350.98143.7870

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 105.767 Se1 O5 H7 105.767
O2 Se1 O3 126.349 O2 Se1 O4 106.690
O2 Se1 O5 106.846 O3 Se1 O4 106.846
O3 Se1 O5 106.690 O4 Se1 O5 100.519
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 2.131      
2 O -0.764      
3 O -0.764      
4 O -0.471      
5 O -0.471      
6 H 0.170      
7 H 0.170      


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 -2.368 2.368
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.629 -5.924 0.000
y -5.924 -43.218 0.000
z 0.000 0.000 -42.201
Traceless
 xyz
x 6.080 -5.924 0.000
y -5.924 -3.803 0.000
z 0.000 0.000 -2.277
Polar
3z2-r2-4.554
x2-y26.589
xy-5.924
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.713 -0.316 0.000
y -0.316 7.265 0.000
z 0.000 0.000 6.581


<r2> (average value of r2) Å2
<r2> 123.572
(<r2>)1/2 11.116