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AlN is Wurtzite structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Al3+ is bonded to five equivalent N3- atoms to form a mixture of corner and edge-sharing AlN5 trigonal bipyramids. There are three shorter (1.91 Å) and two longer (2.09 Å) Al–N bond lengths. N3- is bonded to five equivalent Al3+ atoms to form a mixture of corner and edge-sharing NAl5 trigonal bipyramids.
AlN is Halite, Rock Salt structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Al3+ is bonded to six equivalent N3- atoms to form a mixture of corner and edge-sharing AlN6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Al–N bond lengths are 2.03 Å. N3- is bonded to six equivalent Al3+ atoms to form a mixture of corner and edge-sharing NAl6 octahedra. The corner-sharing octahedral tilt angles are 0°.
AlN is Zincblende, Sphalerite structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. Al3+ is bonded to four equivalent N3- atoms to form corner-sharing AlN4 tetrahedra. All Al–N bond lengths are 1.91 Å. N3- is bonded to four equivalent Al3+ atoms to form corner-sharing NAl4 tetrahedra.
AlN is Wurtzite structured and crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Al3+ is bonded to four equivalent N3- atoms to form corner-sharing AlN4 tetrahedra. There is three shorter (1.90 Å) and one longer (1.91 Å) Al–N bond length. N3- is bonded to four equivalent Al3+ atoms to form corner-sharing NAl4 tetrahedra.