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 AlN (Aluminum nitride)

using model chemistry: LSDA/cc-pCVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 3Π
Energy calculated at LSDA/cc-pCVDZ
 hartrees
Energy at 0K-295.942242
Energy at 298.15K-295.942207
HF Energy-295.942242
Nuclear repulsion energy26.890058
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 LSDA/cc-pCVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 768 768 2.60      

Unscaled Zero Point Vibrational Energy (zpe) 384.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 384.1 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 LSDA/cc-pCVDZ
B
0.57020

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/cc-pCVDZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.627
N2 0.000 0.000 -1.164

Atom - Atom Distances (Å)
  Al1 N2
Al11.7908
N21.7908

picture of Aluminum nitride state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pCVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 0.257      
2 N -0.257      


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 2.465 2.465
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.705 0.000 0.000
y 0.000 -15.916 0.000
z 0.000 0.000 -19.764
Traceless
 xyz
x -0.864 0.000 0.000
y 0.000 3.318 0.000
z 0.000 0.000 -2.454
Polar
3z2-r2-4.907
x2-y2-2.788
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.783 0.000 0.000
y 0.000 4.805 0.000
z 0.000 0.000 7.855


<r2> (average value of r2) Å2
<r2> 25.915
(<r2>)1/2 5.091