RbMgIn(MoO4)2 crystallizes in the trigonal P3m1 space group. Rb(1) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(2) atoms. Mg(1) is bonded in a single-bond geometry to one O(4) atom. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(4) and three equivalent O(1) atoms to form MoO4 tetrahedra that share corners with three equivalent In(1)O6 octahedra. The corner-sharing octahedral tilt angles are 19°. In the second Mo site, Mo(2) is bonded to one O(3) and three equivalent O(2) atoms to form MoO4 tetrahedra that share corners with three equivalent In(1)O6 octahedra. The corner-sharing octahedral tilt angles are 26°. In(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form InO6 octahedra that share corners with three equivalent Mo(1)O4 tetrahedra and corners with three equivalent Mo(2)O4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Rb(1), one Mo(1), and one In(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Rb(1), one Mo(2), and one In(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Mo(2) atom. In the fourth O site, O(4) is bonded in a linear geometry to one Mg(1) and one Mo(1) atom.
RbMgIn(MoO4)2 crystallizes in the trigonal P3m1 space group. Rb(1) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(2) atoms. All Rb(1)-O(1) bond lengths are 2.88 Å. All Rb(1)-O(2) bond lengths are 2.92 Å. Mg(1) is bonded in a single-bond geometry to one O(4) atom. The Mg(1)-O(4) bond length is 1.90 Å. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(4) and three equivalent O(1) atoms to form MoO4 tetrahedra that share corners with three equivalent In(1)O6 octahedra. The corner-sharing octahedral tilt angles are 19°. The Mo(1)-O(4) bond length is 1.87 Å. All Mo(1)-O(1) bond lengths are 1.78 Å. In the second Mo site, Mo(2) is bonded to one O(3) and three equivalent O(2) atoms to form MoO4 tetrahedra that share corners with three equivalent In(1)O6 octahedra. The corner-sharing octahedral tilt angles are 26°. The Mo(2)-O(3) bond length is 1.76 Å. All Mo(2)-O(2) bond lengths are 1.82 Å. In(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form InO6 octahedra that share corners with three equivalent Mo(1)O4 tetrahedra and corners with three equivalent Mo(2)O4 tetrahedra. All In(1)-O(1) bond lengths are 2.46 Å. All In(1)-O(2) bond lengths are 2.55 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Rb(1), one Mo(1), and one In(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Rb(1), one Mo(2), and one In(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Mo(2) atom. In the fourth O site, O(4) is bonded in a linear geometry to one Mg(1) and one Mo(1) atom.