Materials Data on LiMgAl3(SO4)6 by Materials Project
LiMgAl3(SO4)6 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Li1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Li–O bond distances ranging from 1.94–2.40 Å. Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with six SO4 tetrahedra. There are a spread of Mg–O bond distances ranging from 2.00–2.09 Å. There are three inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded to six O2- atoms to form AlO6 octahedra that share corners with six SO4 tetrahedra. There are a spread of Al–O bond distances ranging from 1.86–1.99 Å. In the second Al3+ site, Al3+ is bonded to six O2- atoms to form AlO6 octahedra that share corners with six SO4 tetrahedra. There are a spread of Al–O bond distances ranging from 1.89–1.93 Å. In the third Al3+ site, Al3+ is bonded to six O2- atoms to form AlO6 octahedra that share corners with six SO4 tetrahedra. There are a spread of Al–O bond distances ranging from 1.84–1.96 Å. There are six inequivalent S6+ sites. In the first S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with four AlO6 octahedra. The corner-sharing octahedra tilt angles range from 24–35°. There is three shorter (1.48 Å) and one longer (1.49 Å) S–O bond length. In the second S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share a cornercorner with one MgO6 octahedra and corners with three AlO6 octahedra. The corner-sharing octahedra tilt angles range from 28–38°. There are a spread of S–O bond distances ranging from 1.45–1.51 Å. In the third S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share a cornercorner with one MgO6 octahedra and corners with three AlO6 octahedra. The corner-sharing octahedra tilt angles range from 26–39°. There are a spread of S–O bond distances ranging from 1.45–1.49 Å. In the fourth S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with two equivalent MgO6 octahedra and corners with two AlO6 octahedra. The corner-sharing octahedra tilt angles range from 30–42°. There are a spread of S–O bond distances ranging from 1.45–1.52 Å. In the fifth S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share a cornercorner with one MgO6 octahedra and corners with three AlO6 octahedra. The corner-sharing octahedra tilt angles range from 27–42°. All S–O bond lengths are 1.48 Å. In the sixth S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share a cornercorner with one MgO6 octahedra and corners with three AlO6 octahedra. The corner-sharing octahedra tilt angles range from 18–39°. There are a spread of S–O bond distances ranging from 1.45–1.52 Å. There are twenty-four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted linear geometry to one Al3+ and one S6+ atom. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to one Al3+ and one S6+ atom. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to one Al3+ and one S6+ atom. In the fourth O2- site, O2- is bonded in a bent 150 degrees geometry to one Al3+ and one S6+ atom. In the fifth O2- site, O2- is bonded in a bent 150 degrees geometry to one Al3+ and one S6+ atom. In the sixth O2- site, O2- is bonded in a bent 150 degrees geometry to one Al3+ and one S6+ atom. In the seventh O2- site, O2- is bonded in a bent 150 degrees geometry to one Mg2+ and one S6+ atom. In the eighth O2- site, O2- is bonded in a bent 150 degrees geometry to one Al3+ and one S6+ atom. In the ninth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Al3+, and one S6+ atom. In the tenth O2- site, O2- is bonded in a bent 150 degrees geometry to one Mg2+ and one S6+ atom. In the eleventh O2- site, O2- is bonded in a bent 150 degrees geometry to one Al3+ and one S6+ atom. In the twelfth O2- site, O2- is bonded in a bent 150 degrees geometry to one Al3+ and one S6+ atom. In the thirteenth O2- site, O2- is bonded in a bent 150 degrees geometry to one Al3+ and one S6+ atom. In the fourteenth O2- site, O2- is bonded in a bent 150 degrees geometry to one Mg2+ and one S6+ atom. In the fifteenth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Al3+, and one S6+ atom. In the sixteenth O2- site, O2- is bonded in a distorted T-shaped geometry to one Li1+, one Mg2+, and one S6+ atom. In the seventeenth O2- site, O2- is bonded in a bent 150 degrees geometry to one Al3+ and one S6+ atom. In the eighteenth O2- site, O2- is bonded in a bent 150 degrees geometry to one Al3+ and one S6+ atom. In the nineteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Mg2+, and one S6+ atom. In the twentieth O2- site, O2- is bonded in a bent 150 degrees geometry to one Mg2+ and one S6+ atom. In the twenty-first O2- site, O2- is bonded in a bent 150 degrees geometry to one Al3+ and one S6+ atom. In the twenty-second O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Li1+, one Al3+, and one S6+ atom. In the twenty-third O2- site, O2- is bonded in a bent 150 degrees geometry to one Al3+ and one S6+ atom. In the twenty-fourth O2- site, O2- is bonded in a bent 150 degrees geometry to one Al3+ and one S6+ atom.