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All results from a given calculation for H3AlO3 (Aluminum hydroxide)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3H 1A'
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-467.333594
Energy at 298.15K-467.337412
HF Energy-467.333594
Nuclear repulsion energy160.949354
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 B3PW91/3-21G
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' 3767 3621 0.00      
2 A' 760 730 0.00      
3 A' 512 492 0.00      
4 A" 289 278 531.35      
5 A" 247 237 142.31      
6 E' 3769 3623 64.09      
6 E' 3769 3623 64.09      
7 E' 1018 979 81.56      
7 E' 1018 979 81.57      
8 E' 525 505 314.42      
8 E' 525 505 314.39      
9 E' 264 254 41.05      
9 E' 264 254 41.05      
10 E" 275 264 0.00      
10 E" 275 264 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 8638.1 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 8302.9 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 B3PW91/3-21G
ABC
0.21595 0.21595 0.10797

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.000
O2 0.000 1.696 0.000
O3 -1.469 -0.848 0.000
O4 1.469 -0.848 0.000
H5 -0.737 2.334 0.000
H6 -1.653 -1.805 0.000
H7 2.389 -0.529 0.000

Atom - Atom Distances (Å)
  Al1 O2 O3 O4 H5 H6 H7
Al11.69601.69601.69602.44732.44732.4473
O21.69602.93752.93750.97453.87143.2648
O31.69602.93752.93753.26480.97453.8714
O41.69602.93752.93753.87143.26480.9745
H52.44730.97453.26483.87144.23884.2388
H62.44733.87140.97453.26484.23884.2388
H72.44733.26483.87140.97454.23884.2388

picture of Aluminum hydroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Al1 O2 H5 130.877 Al1 O3 H6 130.877
Al1 O4 H7 130.877 O2 Al1 O3 120.000
O2 Al1 O4 120.000 O3 Al1 O4 120.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 1.185      
2 O -0.784      
3 O -0.784      
4 O -0.784      
5 H 0.389      
6 H 0.389      
7 H 0.389      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.797 0.000 0.000
y 0.000 -25.797 0.000
z 0.000 0.000 -26.782
Traceless
 xyz
x 0.493 0.000 0.000
y 0.000 0.493 0.000
z 0.000 0.000 -0.986
Polar
3z2-r2-1.972
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.277 0.000 0.000
y 0.000 4.277 0.000
z 0.000 0.000 2.289


<r2> (average value of r2) Å2
<r2> 103.316
(<r2>)1/2 10.164