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

using model chemistry: QCISD/6-31G

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 QCISD/6-31G
 hartrees
Energy at 0K-296.351260
Energy at 298.15K-296.351167
HF Energy-296.232385
Nuclear repulsion energy25.354940
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 QCISD/6-31G
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 648 625 11.70      

Unscaled Zero Point Vibrational Energy (zpe) 324.2 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 312.4 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 QCISD/6-31G
B
0.50695

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.665
N2 0.000 0.000 -1.235

Atom - Atom Distances (Å)
  Al1 N2
Al11.8992
N21.8992

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

Electronic state

Charges, Dipole, Quadrupole and Polarizability

State 2 (1Σ)

Jump to S1C1
Energy calculated at QCISD/6-31G
 hartrees
Energy at 0K-296.346735
Energy at 298.15K-296.346722
Nuclear repulsion energy27.086978
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 QCISD/6-31G
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 846 816 92.73      

Unscaled Zero Point Vibrational Energy (zpe) 423.1 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 407.7 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 QCISD/6-31G
B
0.57858

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.622
N2 0.000 0.000 -1.156

Atom - Atom Distances (Å)
  Al1 N2
Al11.7778
N21.7778

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

Electronic state

Charges, Dipole, Quadrupole and Polarizability