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

using model chemistry: B3PW91/3-21G*

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 B3PW91/3-21G*
 hartrees
Energy at 0K-295.397384
Energy at 298.15K-295.397346
HF Energy-295.397384
Nuclear repulsion energy26.599889
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 B3PW91/3-21G*
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 771 740 2.19      

Unscaled Zero Point Vibrational Energy (zpe) 385.5 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 369.9 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 B3PW91/3-21G*
B
0.55796

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.634
N2 0.000 0.000 -1.177

Atom - Atom Distances (Å)
  Al1 N2
Al11.8104
N21.8104

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 B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 0.297      
2 N -0.297      


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 1.606 1.606
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.896 0.000 0.000
y 0.000 -18.668 0.000
z 0.000 0.000 -20.733
Traceless
 xyz
x 3.805 0.000 0.000
y 0.000 -0.354 0.000
z 0.000 0.000 -3.451
Polar
3z2-r2-6.902
x2-y22.772
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.926 0.000 0.000
y 0.000 19.164 0.000
z 0.000 0.000 8.264


<r2> (average value of r2) Å2
<r2> 26.425
(<r2>)1/2 5.141

State 2 (1Σ)

Jump to S1C1
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-295.353674
Energy at 298.15K-295.353692
Nuclear repulsion energy28.487468
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 B3PW91/3-21G*
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 974 935 0.81      

Unscaled Zero Point Vibrational Energy (zpe) 487.1 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 467.3 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 B3PW91/3-21G*
B
0.63996

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.592
N2 0.000 0.000 -1.099

Atom - Atom Distances (Å)
  Al1 N2
Al11.6904
N21.6904

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 B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 0.312      
2 N -0.312      


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 3.535 3.535
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.008 0.000 0.000
y 0.000 -18.008 0.000
z 0.000 0.000 -16.427
Traceless
 xyz
x -0.790 0.000 0.000
y 0.000 -0.790 0.000
z 0.000 0.000 1.580
Polar
3z2-r23.161
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 9.030 0.000 0.000
y 0.000 9.030 0.000
z 0.000 0.000 7.360


<r2> (average value of r2) Å2
<r2> 23.920
(<r2>)1/2 4.891