RbInBr3 is (Cubic) Perovskite structured and crystallizes in the monoclinic Cm space group. Rb(1) is bonded to four equivalent Br(2) and eight equivalent Br(1) atoms to form RbBr12 cuboctahedra that share corners with twelve equivalent Rb(1)Br12 cuboctahedra, faces with six equivalent Rb(1)Br12 cuboctahedra, and faces with eight equivalent In(1)Br6 octahedra. In(1) is bonded to two equivalent Br(2) and four equivalent Br(1) atoms to form InBr6 octahedra that share corners with six equivalent In(1)Br6 octahedra and faces with eight equivalent Rb(1)Br12 cuboctahedra. The corner-sharing octahedral tilt angles range from 1-3°. There are two inequivalent Br sites. In the first Br site, Br(1) is bonded in a distorted linear geometry to four equivalent Rb(1) and two equivalent In(1) atoms. In the second Br site, Br(2) is bonded in a distorted linear geometry to four equivalent Rb(1) and two equivalent In(1) atoms.
RbInBr3 is (Cubic) Perovskite structured and crystallizes in the monoclinic Cm space group. Rb(1) is bonded to four equivalent Br(2) and eight equivalent Br(1) atoms to form RbBr12 cuboctahedra that share corners with twelve equivalent Rb(1)Br12 cuboctahedra, faces with six equivalent Rb(1)Br12 cuboctahedra, and faces with eight equivalent In(1)Br6 octahedra. There are a spread of Rb(1)-Br(2) bond distances ranging from 4.00-4.11 Å. There are a spread of Rb(1)-Br(1) bond distances ranging from 3.98-4.12 Å. In(1) is bonded to two equivalent Br(2) and four equivalent Br(1) atoms to form InBr6 octahedra that share corners with six equivalent In(1)Br6 octahedra and faces with eight equivalent Rb(1)Br12 cuboctahedra. The corner-sharing octahedral tilt angles range from 1-3°. There is one shorter (2.86 Å) and one longer (2.88 Å) In(1)-Br(2) bond length. There are two shorter (2.85 Å) and two longer (2.89 Å) In(1)-Br(1) bond lengths. There are two inequivalent Br sites. In the first Br site, Br(1) is bonded in a distorted linear geometry to four equivalent Rb(1) and two equivalent In(1) atoms. In the second Br site, Br(2) is bonded in a distorted linear geometry to four equivalent Rb(1) and two equivalent In(1) atoms.