CsEuBr3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. Cs(1) is bonded in a 8-coordinate geometry to two equivalent Br(2) and six equivalent Br(1) atoms. Eu(1) is bonded to two equivalent Br(2) and four equivalent Br(1) atoms to form corner-sharing EuBr6 octahedra. The corner-sharing octahedral tilt angles range from 20-26°. There are two inequivalent Br sites. In the first Br site, Br(1) is bonded in a 5-coordinate geometry to three equivalent Cs(1) and two equivalent Eu(1) atoms. In the second Br site, Br(2) is bonded in a distorted see-saw-like geometry to two equivalent Cs(1) and two equivalent Eu(1) atoms.
CsEuBr3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. Cs(1) is bonded in a 8-coordinate geometry to two equivalent Br(2) and six equivalent Br(1) atoms. There is one shorter (3.69 Å) and one longer (3.74 Å) Cs(1)-Br(2) bond length. There are a spread of Cs(1)-Br(1) bond distances ranging from 3.68-4.02 Å. Eu(1) is bonded to two equivalent Br(2) and four equivalent Br(1) atoms to form corner-sharing EuBr6 octahedra. The corner-sharing octahedral tilt angles range from 20-26°. Both Eu(1)-Br(2) bond lengths are 2.99 Å. All Eu(1)-Br(1) bond lengths are 3.01 Å. There are two inequivalent Br sites. In the first Br site, Br(1) is bonded in a 5-coordinate geometry to three equivalent Cs(1) and two equivalent Eu(1) atoms. In the second Br site, Br(2) is bonded in a distorted see-saw-like geometry to two equivalent Cs(1) and two equivalent Eu(1) atoms.