Materials Data on AlGa2Bi(BO3)4 by Materials Project
BiAlGa2(BO3)4 is Calcite-derived structured and crystallizes in the monoclinic C2 space group. The structure is three-dimensional. Ga3+ is bonded to six O2- atoms to form GaO6 octahedra that share an edgeedge with one GaO6 octahedra and an edgeedge with one AlO6 octahedra. There are a spread of Ga–O bond distances ranging from 1.94–2.04 Å. Al3+ is bonded to six O2- atoms to form AlO6 octahedra that share edges with two equivalent GaO6 octahedra. There are a spread of Al–O bond distances ranging from 1.90–1.97 Å. There are three inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.38 Å) and one longer (1.39 Å) B–O bond length. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.37 Å) and one longer (1.39 Å) B–O bond length. In the third B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.39 Å) and two longer (1.40 Å) B–O bond length. Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.39–2.44 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to one Ga3+, one Al3+, and one B3+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Ga3+ and one B3+ atom. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to one Ga3+, one Al3+, and one B3+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Ga3+ and one B3+ atom. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to one Al3+, one B3+, and one Bi3+ atom. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to one Ga3+, one B3+, and one Bi3+ atom. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to one Ga3+, one B3+, and one Bi3+ atom.