Materials Data on Pd(Se3Br)2 by Materials Project
PdSe6(Br)2 crystallizes in the triclinic P-1 space group. The structure is one-dimensional and consists of two hydrobromic acid molecules and one PdSe6 ribbon oriented in the (0, -1, 1) direction. In the PdSe6 ribbon, Pd2+ is bonded in a linear geometry to two equivalent Se2- atoms. Both Pd–Se bond lengths are 2.44 Å. There are three inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a distorted water-like geometry to two Se2- atoms. There are one shorter (2.35 Å) and one longer (2.43 Å) Se–Se bond lengths. In the second Se2- site, Se2- is bonded in a 1-coordinate geometry to one Pd2+ and two Se2- atoms. The Se–Se bond length is 2.43 Å. In the third Se2- site, Se2- is bonded in a distorted L-shaped geometry to two Se2- atoms.