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

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3H 1A'
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-467.484439
Energy at 298.15K-467.488497
HF Energy-467.484439
Nuclear repulsion energy161.862460
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 mPW1PW91/3-21G*
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' 3739 3551 0.00      
2 A' 755 717 0.00      
3 A' 573 545 0.00      
4 A" 322 305 498.85      
5 A" 259 246 83.15      
6 E' 3740 3551 57.05      
6 E' 3740 3551 57.05      
7 E' 1026 974 106.88      
7 E' 1026 974 106.88      
8 E' 584 555 303.98      
8 E' 584 555 303.98      
9 E' 249 236 34.32      
9 E' 249 236 34.32      
10 E" 322 306 0.00      
10 E" 322 306 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 8744.9 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 8304.2 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 mPW1PW91/3-21G*
ABC
0.21880 0.21880 0.10940

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is C3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.000
O2 0.000 1.688 0.000
O3 -1.462 -0.844 0.000
O4 1.462 -0.844 0.000
H5 -0.789 2.264 0.000
H6 -1.567 -1.815 0.000
H7 2.355 -0.449 0.000

Atom - Atom Distances (Å)
  Al1 O2 O3 O4 H5 H6 H7
Al11.68791.68791.68792.39782.39782.3978
O21.68792.92352.92350.97693.83743.1804
O31.68792.92352.92353.18040.97693.8374
O41.68792.92352.92353.83743.18040.9769
H52.39780.97693.18043.83744.15314.1531
H62.39783.83740.97693.18044.15314.1531
H72.39783.18043.83740.97694.15314.1531

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 126.166 Al1 O3 H6 126.166
Al1 O4 H7 126.166 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 mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 0.863      
2 O -0.670      
3 O -0.670      
4 O -0.670      
5 H 0.382      
6 H 0.382      
7 H 0.382      


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 -25.343 0.000 0.000
y 0.000 -25.343 0.000
z 0.000 0.000 -26.583
Traceless
 xyz
x 0.620 0.000 0.000
y 0.000 0.620 0.000
z 0.000 0.000 -1.240
Polar
3z2-r2-2.481
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 4.071 0.000 0.000
y 0.000 4.071 0.000
z 0.000 0.000 2.473


<r2> (average value of r2) Å2
<r2> 101.711
(<r2>)1/2 10.085