Materials Data on KInBr3 by Materials Project
KInBr3 crystallizes in the trigonal P-3 space group. The structure is two-dimensional and consists of one KInBr3 sheet oriented in the (0, 0, 1) direction. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a distorted q6 geometry to nine Br1- atoms. There are a spread of K–Br bond distances ranging from 3.55–3.63 Å. In the second K1+ site, K1+ is bonded in a distorted octahedral geometry to six Br1- atoms. All K–Br bond lengths are 3.39 Å. There are two inequivalent In2+ sites. In the first In2+ site, In2+ is bonded in a distorted T-shaped geometry to three equivalent Br1- atoms. All In–Br bond lengths are 2.64 Å. In the second In2+ site, In2+ is bonded in a distorted T-shaped geometry to three equivalent Br1- atoms. All In–Br bond lengths are 2.63 Å. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 4-coordinate geometry to three K1+ and one In2+ atom. In the second Br1- site, Br1- is bonded in a 3-coordinate geometry to two K1+ and one In2+ atom.