RbLaTiNbO6F crystallizes in the orthorhombic Pmm2 space group. Rb(1) is bonded in a body-centered cubic geometry to four equivalent O(1) and four equivalent O(2) atoms. La(1) is bonded to two equivalent O(3), two equivalent O(4), two equivalent O(5), four equivalent O(6), and two equivalent F(1) atoms to form a mixture of corner and face-sharing LaO10F2 cuboctahedra. Ti(1) is bonded in a 6-coordinate geometry to one O(1), one O(6), two equivalent O(3), and two equivalent F(1) atoms. Nb(1) is bonded in a 6-coordinate geometry to one O(2), one O(6), two equivalent O(4), and two equivalent O(5) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to four equivalent Rb(1) and one Ti(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to four equivalent Rb(1) and one Nb(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to two equivalent La(1) and two equivalent Ti(1) atoms. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to two equivalent La(1) and two equivalent Nb(1) atoms. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to two equivalent La(1) and two equivalent Nb(1) atoms. In the sixth O site, O(6) is bonded to four equivalent La(1), one Ti(1), and one Nb(1) atom to form a mixture of edge and corner-sharing OLa4TiNb octahedra. The corner-sharing octahedral tilt angles are 1°. F(1) is bonded in a distorted bent 150 degrees geometry to two equivalent La(1) and two equivalent Ti(1) atoms.
RbLaTiNbO6F crystallizes in the orthorhombic Pmm2 space group. Rb(1) is bonded in a body-centered cubic geometry to four equivalent O(1) and four equivalent O(2) atoms. All Rb(1)-O(1) bond lengths are 3.18 Å. All Rb(1)-O(2) bond lengths are 3.16 Å. La(1) is bonded to two equivalent O(3), two equivalent O(4), two equivalent O(5), four equivalent O(6), and two equivalent F(1) atoms to form a mixture of corner and face-sharing LaO10F2 cuboctahedra. Both La(1)-O(3) bond lengths are 2.71 Å. Both La(1)-O(4) bond lengths are 2.70 Å. Both La(1)-O(5) bond lengths are 2.67 Å. All La(1)-O(6) bond lengths are 2.75 Å. Both La(1)-F(1) bond lengths are 2.73 Å. Ti(1) is bonded in a 6-coordinate geometry to one O(1), one O(6), two equivalent O(3), and two equivalent F(1) atoms. The Ti(1)-O(1) bond length is 1.70 Å. The Ti(1)-O(6) bond length is 2.30 Å. Both Ti(1)-O(3) bond lengths are 1.99 Å. Both Ti(1)-F(1) bond lengths are 2.00 Å. Nb(1) is bonded in a 6-coordinate geometry to one O(2), one O(6), two equivalent O(4), and two equivalent O(5) atoms. The Nb(1)-O(2) bond length is 1.81 Å. The Nb(1)-O(6) bond length is 2.34 Å. Both Nb(1)-O(4) bond lengths are 1.99 Å. Both Nb(1)-O(5) bond lengths are 2.01 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to four equivalent Rb(1) and one Ti(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to four equivalent Rb(1) and one Nb(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to two equivalent La(1) and two equivalent Ti(1) atoms. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to two equivalent La(1) and two equivalent Nb(1) atoms. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to two equivalent La(1) and two equivalent Nb(1) atoms. In the sixth O site, O(6) is bonded to four equivalent La(1), one Ti(1), and one Nb(1) atom to form a mixture of edge and corner-sharing OLa4TiNb octahedra. The corner-sharing octahedral tilt angles are 1°. F(1) is bonded in a distorted bent 150 degrees geometry to two equivalent La(1) and two equivalent Ti(1) atoms.