Rb2TiCr2(MoO4)6 crystallizes in the triclinic P-1 space group. Rb(1) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(11), one O(12), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. Ti(1) is bonded to two equivalent O(12), two equivalent O(5), and two equivalent O(7) atoms to form TiO6 octahedra that share corners with two equivalent Mo(1)O4 tetrahedra, corners with two equivalent Mo(2)O4 tetrahedra, and corners with two equivalent Mo(3)O4 tetrahedra. There are three inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(10), one O(4), and one O(7) atom to form MoO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Cr(1)O6 octahedra, and  a cornercorner with one Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 11-41°. In the second Mo site, Mo(2) is bonded to one O(11), one O(2), one O(5), and one O(8) atom to form MoO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Cr(1)O6 octahedra, and  a cornercorner with one Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 12-40°. In the third Mo site, Mo(3) is bonded to one O(12), one O(3), one O(6), and one O(9) atom to form MoO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Cr(1)O6 octahedra, and  a cornercorner with one Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 13-42°. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to two equivalent O(10), two equivalent O(6), and two equivalent O(8) atoms to form CrO6 octahedra that share corners with two equivalent Mo(1)O4 tetrahedra, corners with two equivalent Mo(2)O4 tetrahedra, and corners with two equivalent Mo(3)O4 tetrahedra. In the second Cr site, Cr(2) is bonded to two equivalent O(11), two equivalent O(4), and two equivalent O(9) atoms to form CrO6 octahedra that share corners with two equivalent Mo(1)O4 tetrahedra, corners with two equivalent Mo(2)O4 tetrahedra, and corners with two equivalent Mo(3)O4 tetrahedra. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Rb(1) and one Mo(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one Rb(1) and one Mo(2) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Rb(1) and one Mo(3) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Mo(1), and one Cr(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Ti(1), and one Mo(2) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Mo(3), and one Cr(1) atom. In the seventh O site, O(7) is bonded in a linear geometry to one Ti(1) and one Mo(1) atom. In the eighth O site, O(8) is bonded in a linear geometry to one Mo(2) and one Cr(1) atom. In the ninth O site, O(9) is bonded in a linear geometry to one Mo(3) and one Cr(2) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Rb(1), one Mo(1), and one Cr(1) atom. In the eleventh O site, O(11) is bonded in a bent 150 degrees geometry to one Rb(1), one Mo(2), and one Cr(2) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Rb(1), one Ti(1), and one Mo(3) atom.
Rb2TiCr2(MoO4)6 crystallizes in the triclinic P-1 space group. Rb(1) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(11), one O(12), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. The Rb(1)-O(1) bond length is 3.33 Å. The Rb(1)-O(10) bond length is 3.44 Å. The Rb(1)-O(11) bond length is 3.42 Å. The Rb(1)-O(12) bond length is 3.44 Å. The Rb(1)-O(2) bond length is 3.29 Å. The Rb(1)-O(3) bond length is 3.33 Å. The Rb(1)-O(4) bond length is 3.32 Å. The Rb(1)-O(5) bond length is 3.38 Å. The Rb(1)-O(6) bond length is 3.32 Å. Ti(1) is bonded to two equivalent O(12), two equivalent O(5), and two equivalent O(7) atoms to form TiO6 octahedra that share corners with two equivalent Mo(1)O4 tetrahedra, corners with two equivalent Mo(2)O4 tetrahedra, and corners with two equivalent Mo(3)O4 tetrahedra. Both Ti(1)-O(12) bond lengths are 1.97 Å. Both Ti(1)-O(5) bond lengths are 1.97 Å. Both Ti(1)-O(7) bond lengths are 1.93 Å. There are three inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(10), one O(4), and one O(7) atom to form MoO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Cr(1)O6 octahedra, and  a cornercorner with one Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 11-41°. The Mo(1)-O(1) bond length is 1.74 Å. The Mo(1)-O(10) bond length is 1.81 Å. The Mo(1)-O(4) bond length is 1.81 Å. The Mo(1)-O(7) bond length is 1.83 Å. In the second Mo site, Mo(2) is bonded to one O(11), one O(2), one O(5), and one O(8) atom to form MoO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Cr(1)O6 octahedra, and  a cornercorner with one Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 12-40°. The Mo(2)-O(11) bond length is 1.81 Å. The Mo(2)-O(2) bond length is 1.74 Å. The Mo(2)-O(5) bond length is 1.84 Å. The Mo(2)-O(8) bond length is 1.80 Å. In the third Mo site, Mo(3) is bonded to one O(12), one O(3), one O(6), and one O(9) atom to form MoO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Cr(1)O6 octahedra, and  a cornercorner with one Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 13-42°. The Mo(3)-O(12) bond length is 1.85 Å. The Mo(3)-O(3) bond length is 1.74 Å. The Mo(3)-O(6) bond length is 1.81 Å. The Mo(3)-O(9) bond length is 1.80 Å. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to two equivalent O(10), two equivalent O(6), and two equivalent O(8) atoms to form CrO6 octahedra that share corners with two equivalent Mo(1)O4 tetrahedra, corners with two equivalent Mo(2)O4 tetrahedra, and corners with two equivalent Mo(3)O4 tetrahedra. Both Cr(1)-O(10) bond lengths are 2.00 Å. Both Cr(1)-O(6) bond lengths are 2.01 Å. Both Cr(1)-O(8) bond lengths are 1.97 Å. In the second Cr site, Cr(2) is bonded to two equivalent O(11), two equivalent O(4), and two equivalent O(9) atoms to form CrO6 octahedra that share corners with two equivalent Mo(1)O4 tetrahedra, corners with two equivalent Mo(2)O4 tetrahedra, and corners with two equivalent Mo(3)O4 tetrahedra. Both Cr(2)-O(11) bond lengths are 2.00 Å. Both Cr(2)-O(4) bond lengths are 2.01 Å. Both Cr(2)-O(9) bond lengths are 1.97 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Rb(1) and one Mo(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one Rb(1) and one Mo(2) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Rb(1) and one Mo(3) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Mo(1), and one Cr(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Ti(1), and one Mo(2) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Mo(3), and one Cr(1) atom. In the seventh O site, O(7) is bonded in a linear geometry to one Ti(1) and one Mo(1) atom. In the eighth O site, O(8) is bonded in a linear geometry to one Mo(2) and one Cr(1) atom. In the ninth O site, O(9) is bonded in a linear geometry to one Mo(3) and one Cr(2) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Rb(1), one Mo(1), and one Cr(1) atom. In the eleventh O site, O(11) is bonded in a bent 150 degrees geometry to one Rb(1), one Mo(2), and one Cr(2) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Rb(1), one Ti(1), and one Mo(3) atom.