return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3H 1A'
Energy calculated at BLYP/6-31+G**
 hartrees
Energy at 0K-470.043778
Energy at 298.15K-470.047830
HF Energy-470.043778
Nuclear repulsion energy159.038560
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 BLYP/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' 3778 3758 0.00      
2 A' 675 671 0.00      
3 A' 622 619 0.00      
4 A" 310 308 424.10      
5 A" 277 275 8.09      
6 E' 3777 3757 92.44      
6 E' 3777 3757 92.40      
7 E' 891 886 178.26      
7 E' 891 886 178.23      
8 E' 648 645 209.29      
8 E' 648 645 209.28      
9 E' 211 210 32.43      
9 E' 211 210 32.43      
10 E" 355 353 0.00      
10 E" 355 353 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 8713.0 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 8666.9 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 BLYP/6-31+G**
ABC
0.21055 0.21055 0.10528

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

Point Group is C3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.000
O2 0.000 1.726 0.000
O3 -1.495 -0.863 0.000
O4 1.495 -0.863 0.000
H5 -0.829 2.234 0.000
H6 -1.520 -1.835 0.000
H7 2.349 -0.399 0.000

Atom - Atom Distances (Å)
  Al1 O2 O3 O4 H5 H6 H7
Al11.72611.72611.72612.38282.38282.3828
O21.72612.98962.98960.97203.87183.1679
O31.72612.98962.98963.16790.97203.8718
O41.72612.98962.98963.87183.16790.9720
H52.38280.97203.16793.87184.12714.1271
H62.38283.87180.97203.16794.12714.1271
H72.38283.16793.87180.97204.12714.1271

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 121.504 Al1 O3 H6 121.504
Al1 O4 H7 121.504 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 BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 0.469      
2 O -0.503      
3 O -0.503      
4 O -0.503      
5 H 0.346      
6 H 0.346      
7 H 0.346      


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 -28.720 0.000 0.000
y 0.000 -28.720 0.000
z 0.000 0.000 -28.687
Traceless
 xyz
x -0.016 0.000 0.000
y 0.000 -0.016 0.000
z 0.000 0.000 0.033
Polar
3z2-r20.066
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 5.611 0.001 0.000
y 0.001 5.611 0.000
z 0.000 0.000 4.391


<r2> (average value of r2) Å2
<r2> 106.468
(<r2>)1/2 10.318