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

using model chemistry: CCD/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 CCD/3-21G
 hartrees
Energy at 0K-294.756314
Energy at 298.15K-294.756279
HF Energy-294.653174
Nuclear repulsion energy25.675960
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 CCD/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 776 755 178.70      

Unscaled Zero Point Vibrational Energy (zpe) 388.2 cm-1
Scaled (by 0.9723) Zero Point Vibrational Energy (zpe) 377.5 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 CCD/3-21G
B
0.51987

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.656
N2 0.000 0.000 -1.219

Atom - Atom Distances (Å)
  Al1 N2
Al11.8755
N21.8755

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 CCD/3-21G
 hartrees
Energy at 0K-294.701966
Energy at 298.15K-294.701954
Nuclear repulsion energy27.767111
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 CCD/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 849 825 43.71      

Unscaled Zero Point Vibrational Energy (zpe) 424.3 cm-1
Scaled (by 0.9723) Zero Point Vibrational Energy (zpe) 412.6 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 CCD/3-21G
B
0.60800

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.607
N2 0.000 0.000 -1.127

Atom - Atom Distances (Å)
  Al1 N2
Al11.7343
N21.7343

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

Electronic state

Charges, Dipole, Quadrupole and Polarizability