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

using model chemistry: B3LYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/3-21G*
 hartrees
Energy at 0K-2690.760751
Energy at 298.15K-2690.762933
HF Energy-2690.760751
Nuclear repulsion energy444.005455
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 B3LYP/3-21G*
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 3433 3302 15.33      
2 A 1062 1022 78.84      
3 A 958 922 44.87      
4 A 696 670 53.86      
5 A 332 320 102.43      
6 A 307 296 1.00      
7 A 239 230 11.85      
8 A 166 160 72.83      
9 B 3431 3300 90.93      
10 B 1116 1074 100.96      
11 B 1028 989 52.72      
12 B 724 696 136.73      
13 B 339 326 82.55      
14 B 311 299 53.71      
15 B 262 252 42.23      

Unscaled Zero Point Vibrational Energy (zpe) 7202.5 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 6928.8 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 B3LYP/3-21G*
ABC
0.13747 0.12749 0.12371

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.134
O2 0.000 1.467 0.853
O3 0.000 -1.467 0.853
O4 1.367 -0.018 -1.008
O5 -1.367 0.018 -1.008
H6 1.698 -0.964 -1.036
H7 -1.698 0.964 -1.036

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.63331.63331.78141.78142.27622.2762
O21.63332.93312.74502.72613.51542.5891
O31.63332.93312.72612.74502.58913.5154
O41.78142.74502.72612.73401.00303.2184
O51.78142.72612.74502.73403.21841.0030
H62.27623.51542.58911.00303.21843.9053
H72.27622.58913.51543.21841.00303.9053

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 106.282 Se1 O5 H7 106.282
O2 Se1 O3 127.772 O2 Se1 O4 106.923
O2 Se1 O5 105.864 O3 Se1 O4 105.864
O3 Se1 O5 106.923 O4 Se1 O5 100.238
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 1.148      
2 O -0.434      
3 O -0.434      
4 O -0.521      
5 O -0.521      
6 H 0.381      
7 H 0.381      


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 -1.912 1.912
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.144 -6.738 0.000
y -6.738 -41.571 0.000
z 0.000 0.000 -41.057
Traceless
 xyz
x 6.171 -6.738 0.000
y -6.738 -3.470 0.000
z 0.000 0.000 -2.700
Polar
3z2-r2-5.401
x2-y26.427
xy-6.738
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.467 -0.654 0.000
y -0.654 5.325 0.000
z 0.000 0.000 4.057


<r2> (average value of r2) Å2
<r2> 127.116
(<r2>)1/2 11.275