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

using model chemistry: TPSSh/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 TPSSh/3-21G
 hartrees
Energy at 0K-467.460111
Energy at 298.15K-467.463884
HF Energy-467.460111
Nuclear repulsion energy160.237955
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 TPSSh/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' 3696 3581 0.00      
2 A' 755 732 0.00      
3 A' 533 517 0.00      
4 A" 262 254 372.15      
5 A" 234 227 239.55      
6 E' 3699 3584 45.76      
6 E' 3699 3584 45.73      
7 E' 1010 978 72.02      
7 E' 1010 978 72.00      
8 E' 552 535 297.64      
8 E' 552 535 297.64      
9 E' 259 251 34.29      
9 E' 259 251 34.30      
10 E" 264 256 0.00      
10 E" 264 256 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 8523.0 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 8257.1 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 TPSSh/3-21G
ABC
0.21417 0.21417 0.10709

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/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 1.705 0.000
O3 -1.476 -0.852 0.000
O4 1.476 -0.852 0.000
H5 -0.766 2.317 0.000
H6 -1.624 -1.822 0.000
H7 2.390 -0.495 0.000

Atom - Atom Distances (Å)
  Al1 O2 O3 O4 H5 H6 H7
Al11.70451.70451.70452.44042.44042.4404
O21.70452.95232.95230.98083.88233.2479
O31.70452.95232.95233.24790.98083.8823
O41.70452.95232.95233.88233.24790.9808
H52.44040.98083.24793.88234.22704.2270
H62.44043.88230.98083.24794.22704.2270
H72.44043.24793.88230.98084.22704.2270

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 128.648 Al1 O3 H6 128.648
Al1 O4 H7 128.648 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 TPSSh/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 1.140      
2 O -0.761      
3 O -0.761      
4 O -0.761      
5 H 0.381      
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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.516 -0.000 0.000
y -0.000 4.516 0.000
z 0.000 0.000 2.461


<r2> (average value of r2) Å2
<r2> 104.139
(<r2>)1/2 10.205