Materials Data on AlGaSb2 by Materials Project
GaAlSb2 is Lavarevi\'{c}ite-like structured and crystallizes in the trigonal R3m space group. The structure is three-dimensional. Ga3+ is bonded to four Sb3- atoms to form GaSb4 tetrahedra that share corners with six equivalent GaSb4 tetrahedra and corners with six equivalent AlSb4 tetrahedra. All Ga–Sb bond lengths are 2.70 Å. Al3+ is bonded to four Sb3- atoms to form AlSb4 tetrahedra that share corners with six equivalent GaSb4 tetrahedra and corners with six equivalent AlSb4 tetrahedra. All Al–Sb bond lengths are 2.70 Å. There are two inequivalent Sb3- sites. In the first Sb3- site, Sb3- is bonded to three equivalent Ga3+ and one Al3+ atom to form corner-sharing SbAlGa3 tetrahedra. In the second Sb3- site, Sb3- is bonded to one Ga3+ and three equivalent Al3+ atoms to form corner-sharing SbAl3Ga tetrahedra.