Materials Data on PmBr3 by Materials Project
PmBr3 crystallizes in the hexagonal P6_3/mmc space group. The structure is one-dimensional and consists of two PmBr3 ribbons oriented in the (0, 0, 1) direction. Pm3+ is bonded to six equivalent Br1- atoms to form distorted face-sharing PmBr6 pentagonal pyramids. All Pm–Br bond lengths are 2.90 Å. Br1- is bonded in an L-shaped geometry to two equivalent Pm3+ atoms.
36 MATERIALS SCIENCE↗