Materials Data on BiI by Materials Project

BiI crystallizes in the monoclinic C2/m space group. The structure is one-dimensional and consists of four BiI ribbons oriented in the (0, 1, 0) direction. there are two inequivalent Bi1+ sites. In the first Bi1+ site, Bi1+ is bonded in a distorted single-bond geometry to one I1- atom. The Bi–I bond length is 3.87 Å. In the second Bi1+ site, Bi1+ is bonded in a rectangular see-saw-like geometry to four I1- atoms. There are two shorter (3.13 Å) and two longer (3.15 Å) Bi–I bond lengths. There are two inequivalent I1- sites. In the first I1- site, I1- is bonded in an L-shaped geometry to three Bi1+ atoms. In the second I1- site, I1- is bonded in an L-shaped geometry to two equivalent Bi1+ atoms.

碘化铋(I)（BiI）结晶于单斜晶系C2/m空间群。该结构为一维结构，包含四条沿(0,1,0)晶向排布的BiI带状结构。体系中存在两个不等价的一价铋离子（Bi1+）晶位。在第一个Bi1+晶位中，Bi1+以畸变单键配位几何与一个一价碘离子（I1-）成键，Bi–I键长为3.87 Å。在第二个Bi1+晶位中，Bi1+以矩形跷跷板型配位几何与四个I1-成键，存在两组Bi–I键长，分别为两条较短的3.13 Å键与两条较长的3.15 Å键。体系中另有两个不等价的I1-晶位。在第一个I1-晶位中，I1-以L型配位几何与三个Bi1+成键。在第二个I1-晶位中，I1-以L型配位几何与两个等价的Bi1+成键。