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All results from a given calculation for AlN (Aluminum nitride)

using model chemistry: LSDA/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 3Π
2 1 yes C*V 1Σ

State 1 (3Π)

Jump to S2C1
Energy calculated at LSDA/3-21G
 hartrees
Energy at 0K-294.300634
Energy at 298.15K-294.300596
HF Energy-294.300634
Nuclear repulsion energy26.346990
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/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 Σ 771 758 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 385.3 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 379.0 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/3-21G
B
0.54740

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.640
N2 0.000 0.000 -1.188

Atom - Atom Distances (Å)
  Al1 N2
Al11.8277
N21.8277

picture of Aluminum nitride state 1 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 0.342      
2 N -0.342      


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 1.731 1.731
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.035 0.000 0.000
y 0.000 -19.120 0.000
z 0.000 0.000 -21.010
Traceless
 xyz
x 4.030 0.000 0.000
y 0.000 -0.598 0.000
z 0.000 0.000 -3.433
Polar
3z2-r2-6.865
x2-y23.086
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.495 0.000 0.000
y 0.000 7.410 0.000
z 0.000 0.000 7.567


<r2> (average value of r2) Å2
<r2> 26.893
(<r2>)1/2 5.186

State 2 (1Σ)

Jump to S1C1
Energy calculated at LSDA/3-21G
 hartrees
Energy at 0K-294.339815
Energy at 298.15K-294.339839
Nuclear repulsion energy28.680356
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/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 Σ 1008 991 1.03      

Unscaled Zero Point Vibrational Energy (zpe) 503.9 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 495.7 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/3-21G
B
0.64865

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.588
N2 0.000 0.000 -1.091

Atom - Atom Distances (Å)
  Al1 N2
Al11.6790
N21.6790

picture of Aluminum nitride state 2 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 0.243      
2 N -0.243      


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 3.487 3.487
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.226 0.000 0.000
y 0.000 -18.226 0.000
z 0.000 0.000 -16.157
Traceless
 xyz
x -1.034 0.000 0.000
y 0.000 -1.034 0.000
z 0.000 0.000 2.069
Polar
3z2-r24.137
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 6.239 0.000 0.000
y 0.000 6.239 0.000
z 0.000 0.000 6.754


<r2> (average value of r2) Å2
<r2> 23.780
(<r2>)1/2 4.876