CoAlN2 is Chalcopyrite structured and crystallizes in the tetragonal I-42d space group. Co(1) is bonded to four equivalent N(1) atoms to form CoN4 tetrahedra that share corners with four equivalent Co(1)N4 tetrahedra and corners with eight equivalent Al(1)N4 tetrahedra. Al(1) is bonded to four equivalent N(1) atoms to form AlN4 tetrahedra that share corners with four equivalent Al(1)N4 tetrahedra and corners with eight equivalent Co(1)N4 tetrahedra. N(1) is bonded to two equivalent Co(1) and two equivalent Al(1) atoms to form corner-sharing NAl2Co2 tetrahedra.
CoAlN2 is Chalcopyrite structured and crystallizes in the tetragonal I-42d space group. Co(1) is bonded to four equivalent N(1) atoms to form CoN4 tetrahedra that share corners with four equivalent Co(1)N4 tetrahedra and corners with eight equivalent Al(1)N4 tetrahedra. All Co(1)-N(1) bond lengths are 1.88 Å. Al(1) is bonded to four equivalent N(1) atoms to form AlN4 tetrahedra that share corners with four equivalent Al(1)N4 tetrahedra and corners with eight equivalent Co(1)N4 tetrahedra. All Al(1)-N(1) bond lengths are 1.89 Å. N(1) is bonded to two equivalent Co(1) and two equivalent Al(1) atoms to form corner-sharing NAl2Co2 tetrahedra.