Materials Data on CuTe2Br by Materials Project
CuTe2Br crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Cu3+ is bonded to two Te1- and two equivalent Br1- atoms to form corner-sharing CuTe2Br2 tetrahedra. There are one shorter (2.55 Å) and one longer (2.56 Å) Cu–Te bond lengths. There are one shorter (2.48 Å) and one longer (2.50 Å) Cu–Br bond lengths. There are two inequivalent Te1- sites. In the first Te1- site, Te1- is bonded in a 5-coordinate geometry to one Cu3+, two equivalent Te1-, and two equivalent Br1- atoms. There are one shorter (2.75 Å) and one longer (2.89 Å) Te–Te bond lengths. There are one shorter (3.58 Å) and one longer (3.62 Å) Te–Br bond lengths. In the second Te1- site, Te1- is bonded in a 1-coordinate geometry to one Cu3+ and two equivalent Te1- atoms. Br1- is bonded in a distorted water-like geometry to two equivalent Cu3+ and two equivalent Te1- atoms.