Materials Data on TmBr3 by Materials Project
TmBr3 crystallizes in the hexagonal P6_3/mmc space group. The structure is one-dimensional and consists of two TmBr3 ribbons oriented in the (0, 0, 1) direction. Tm3+ is bonded to six equivalent Br1- atoms to form distorted face-sharing TmBr6 pentagonal pyramids. All Tm–Br bond lengths are 2.80 Å. Br1- is bonded in an L-shaped geometry to two equivalent Tm3+ atoms.
36 MATERIALS SCIENCE↗