Materials Data on CeUTe6 by Materials Project

UCeTe6 crystallizes in the orthorhombic Amm2 space group. The structure is two-dimensional and consists of two UCeTe6 sheets oriented in the (0, 1, 0) direction. U3+ is bonded in a 9-coordinate geometry to nine Te1- atoms. There are a spread of U–Te bond distances ranging from 3.24–3.27 Å. Ce3+ is bonded in a 9-coordinate geometry to nine Te1- atoms. There are a spread of Ce–Te bond distances ranging from 3.26–3.33 Å. There are four inequivalent Te1- sites. In the first Te1- site, Te1- is bonded in a 5-coordinate geometry to one U3+ and four equivalent Ce3+ atoms. In the second Te1- site, Te1- is bonded to four equivalent U3+ and one Ce3+ atom to form a mixture of distorted corner and edge-sharing TeCeU4 trigonal bipyramids. In the third Te1- site, Te1- is bonded in a 6-coordinate geometry to two equivalent U3+ and four equivalent Te1- atoms. All Te–Te bond lengths are 3.11 Å. In the fourth Te1- site, Te1- is bonded in a 2-coordinate geometry to two equivalent Ce3+ and four equivalent Te1- atoms. All Te–Te bond lengths are 3.11 Å.

UCeTe6结晶于正交晶系（orthorhombic）Amm2空间群（space group）。该结构为二维结构，由两个沿(0,1,0)方向排列的UCeTe6层构成。U³⁺以九配位几何结构（9-coordinate geometry）与九个Te¹⁻原子成键，U–Te键长（bond distances）分布在3.24–3.27 Å之间。Ce³⁺以九配位几何结构与九个Te¹⁻原子成键，Ce–Te键长分布在3.26–3.33 Å之间。存在四个不等价的Te¹⁻位点（inequivalent sites）：在第一个Te¹⁻位点中，Te¹⁻以五配位几何结构（5-coordinate geometry）与一个U³⁺和四个等价的Ce³⁺原子成键；在第二个Te¹⁻位点中，Te¹⁻与四个等价的U³⁺和一个Ce³⁺原子成键，形成扭曲的、通过顶点和边共享的TeCeU₄三角双锥（trigonal bipyramids）混合结构；在第三个Te¹⁻位点中，Te¹⁻以六配位几何结构（6-coordinate geometry）与两个等价的U³⁺和四个等价的Te¹⁻原子成键，所有Te–Te键长均为3.11 Å；在第四个Te¹⁻位点中，Te¹⁻以二配位几何结构（2-coordinate geometry）与两个等价的Ce³⁺和四个等价的Te¹⁻原子成键，所有Te–Te键长均为3.11 Å。