Materials Data on Bi2O3 by Materials Project

Bi2O3 crystallizes in the cubic I23 space group. The structure is three-dimensional. Bi3+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Bi–O bond distances ranging from 2.13–3.06 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a water-like geometry to two equivalent Bi3+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to four equivalent Bi3+ atoms.

三氧化二铋（Bi₂O₃）结晶于立方晶系I23空间群，其结构呈三维特征。Bi³⁺以五配位几何构型与五个O²⁻原子成键，Bi–O键长分布范围为2.13–3.06埃。体系中存在两种不等价的O²⁻位点：第一个O²⁻位点中的O²⁻以类水几何构型与两个等价的Bi³⁺原子成键；第二个O²⁻位点中的O²⁻则以二配位几何构型与四个等价的Bi³⁺原子成键。