MnAl2Sb2(PO4)6 crystallizes in the trigonal R-3 space group. Mn(1) is bonded in a distorted hexagonal planar geometry to six equivalent O(1) atoms. Al(1) is bonded to three equivalent O(1) and three equivalent O(3) atoms to form AlO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. Sb(1) is bonded to three equivalent O(2) and three equivalent O(4) atoms to form SbO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with two equivalent Al(1)O6 octahedra and corners with two equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-44°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mn(1), one Al(1), and one P(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Sb(1) and one P(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Al(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Sb(1) and one P(1) atom.
MnAl2Sb2(PO4)6 crystallizes in the trigonal R-3 space group. Mn(1) is bonded in a distorted hexagonal planar geometry to six equivalent O(1) atoms. All Mn(1)-O(1) bond lengths are 2.26 Å. Al(1) is bonded to three equivalent O(1) and three equivalent O(3) atoms to form AlO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. All Al(1)-O(1) bond lengths are 1.95 Å. All Al(1)-O(3) bond lengths are 1.85 Å. Sb(1) is bonded to three equivalent O(2) and three equivalent O(4) atoms to form SbO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. All Sb(1)-O(2) bond lengths are 1.97 Å. All Sb(1)-O(4) bond lengths are 1.98 Å. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with two equivalent Al(1)O6 octahedra and corners with two equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-44°. The P(1)-O(1) bond length is 1.54 Å. The P(1)-O(2) bond length is 1.56 Å. The P(1)-O(3) bond length is 1.50 Å. The P(1)-O(4) bond length is 1.57 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mn(1), one Al(1), and one P(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Sb(1) and one P(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Al(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Sb(1) and one P(1) atom.