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

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-2701.476208
Energy at 298.15K-2701.478541
HF Energy-2701.476208
Nuclear repulsion energy451.743251
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 mPW1PW91/6-31+G**
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 3811 3627 43.68      
2 A 1088 1036 77.73      
3 A 971 924 63.34      
4 A 687 654 78.96      
5 A 353 336 83.10      
6 A 327 312 6.36      
7 A 257 244 0.68      
8 A 176 167 89.52      
9 B 3807 3623 242.13      
10 B 1130 1075 138.03      
11 B 1039 989 95.47      
12 B 695 662 160.55      
13 B 358 340 69.20      
14 B 327 311 50.59      
15 B 285 271 40.08      

Unscaled Zero Point Vibrational Energy (zpe) 7654.7 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 7285.8 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 mPW1PW91/6-31+G**
ABC
0.13965 0.13311 0.12881

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.132
O2 0.000 1.432 0.849
O3 0.000 -1.432 0.849
O4 1.350 0.015 -0.989
O5 -1.350 -0.015 -0.989
H6 1.616 -0.909 -1.127
H7 -1.616 0.909 -1.127

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.60141.60141.75561.75562.24112.2411
O21.60142.86412.68572.70123.46342.6055
O31.60142.86412.70122.68572.60553.4634
O41.75562.68572.70122.70090.97073.1012
O51.75562.70122.68572.70093.10120.9707
H62.24113.46342.60550.97073.10123.7081
H72.24112.60553.46343.10120.97073.7081

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 107.029 Se1 O5 H7 107.029
O2 Se1 O3 126.820 O2 Se1 O4 106.174
O2 Se1 O5 107.065 O3 Se1 O4 107.065
O3 Se1 O5 106.174 O4 Se1 O5 100.568
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 1.395      
2 O -0.540      
3 O -0.540      
4 O -0.547      
5 O -0.547      
6 H 0.390      
7 H 0.390      


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 -2.655 2.655
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.401 -6.314 0.000
y -6.314 -43.766 0.000
z 0.000 0.000 -41.861
Traceless
 xyz
x 5.413 -6.314 0.000
y -6.314 -4.135 0.000
z 0.000 0.000 -1.278
Polar
3z2-r2-2.556
x2-y26.365
xy-6.314
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.774 -0.235 0.000
y -0.235 6.566 0.000
z 0.000 0.000 5.745


<r2> (average value of r2) Å2
<r2> 124.814
(<r2>)1/2 11.172