Materials Data on Lu2S3 by Materials Project

Lu2S3 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Lu3+ is bonded to five S2- atoms to form a mixture of edge and corner-sharing LuS5 trigonal bipyramids. There are a spread of Lu–S bond distances ranging from 2.57–2.73 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted T-shaped geometry to three equivalent Lu3+ atoms. In the second S2- site, S2- is bonded in a see-saw-like geometry to four equivalent Lu3+ atoms.

三硫化二镥（Lu₂S₃）结晶于单斜晶系C2/c空间群。该晶体结构为三维骨架结构。Lu³+与五个S²-配位，形成兼具共棱与共顶点连接方式的LuS₅三角双锥结构单元。Lu-S键的键长分布范围为2.57~2.73 Å。体系中存在两种不等价的S²-配位位点：在第一种S²-位点中，S²-与三个等价的Lu³+配位，配位几何为畸变T型；在第二种S²-位点中，S²-与四个等价的Lu³+配位，配位几何为跷跷板型。