RbSnBr3 is Pb (Zr_0.50 Ti_0.48) O_3 structured and crystallizes in the triclinic P1 space group. Rb(1) is bonded in a 5-coordinate geometry to one Br(1), two equivalent Br(2), and two equivalent Br(3) atoms. Sn(1) is bonded to two equivalent Br(1), two equivalent Br(2), and two equivalent Br(3) atoms to form corner-sharing SnBr6 octahedra. The corner-sharing octahedral tilt angles are 5°. There are three inequivalent Br sites. In the first Br site, Br(1) is bonded in a 3-coordinate geometry to one Rb(1) and two equivalent Sn(1) atoms. In the second Br site, Br(2) is bonded in a see-saw-like geometry to two equivalent Rb(1) and two equivalent Sn(1) atoms. In the third Br site, Br(3) is bonded in a see-saw-like geometry to two equivalent Rb(1) and two equivalent Sn(1) atoms.
RbSnBr3 is Pb (Zr_0.50 Ti_0.48) O_3 structured and crystallizes in the triclinic P1 space group. Rb(1) is bonded in a 5-coordinate geometry to one Br(1), two equivalent Br(2), and two equivalent Br(3) atoms. The Rb(1)-Br(1) bond length is 3.88 Å. There is one shorter (3.64 Å) and one longer (3.72 Å) Rb(1)-Br(2) bond length. There is one shorter (3.62 Å) and one longer (3.72 Å) Rb(1)-Br(3) bond length. Sn(1) is bonded to two equivalent Br(1), two equivalent Br(2), and two equivalent Br(3) atoms to form corner-sharing SnBr6 octahedra. The corner-sharing octahedral tilt angles are 5°. There is one shorter (2.76 Å) and one longer (3.21 Å) Sn(1)-Br(1) bond length. There is one shorter (2.80 Å) and one longer (3.08 Å) Sn(1)-Br(2) bond length. There is one shorter (2.79 Å) and one longer (3.10 Å) Sn(1)-Br(3) bond length. There are three inequivalent Br sites. In the first Br site, Br(1) is bonded in a 3-coordinate geometry to one Rb(1) and two equivalent Sn(1) atoms. In the second Br site, Br(2) is bonded in a see-saw-like geometry to two equivalent Rb(1) and two equivalent Sn(1) atoms. In the third Br site, Br(3) is bonded in a see-saw-like geometry to two equivalent Rb(1) and two equivalent Sn(1) atoms.