Materials Data on Y2Br3 by Materials Project
Y2Br3 crystallizes in the monoclinic C2/m space group. The structure is two-dimensional and consists of one Y2Br3 sheet oriented in the (2, 0, -1) direction. there are two inequivalent Y sites. In the first Y site, Y is bonded in a 4-coordinate geometry to four Br atoms. There are two shorter (2.91 Å) and two longer (2.93 Å) Y–Br bond lengths. In the second Y site, Y is bonded in a pentagonal planar geometry to five Br atoms. There are a spread of Y–Br bond distances ranging from 2.89–3.03 Å. There are three inequivalent Br sites. In the first Br site, Br is bonded in a trigonal non-coplanar geometry to three equivalent Y atoms. In the second Br site, Br is bonded in a distorted T-shaped geometry to three Y atoms. In the third Br site, Br is bonded in a distorted T-shaped geometry to three Y atoms.