Atomically precise semiconductor clusters of rare-earth tellurides

Ding，You Song1,2; Jiang，Xue Lian1,2; Li，Lei1,2; Xu，Cong Qiao1,2; Li，Jun1,2,3; Zheng，Zhiping1,2

2024-05-01

10.1038/s44160-024-00511-x

Nature Synthesis   影响因子和分区

2731-0582

Atomically precise clusters are important for understanding structure–property relationships of bulk materials. Here we report clusters of the general formula [K(2,2,2-cryptand)][(μ-Cp*RE)(μ-κ:κ:κ-Te)(μ-κ:κ-Te)(μ-η:κ:κ-Te)(μ-Te)] (Cp*, pentamethylcyclopentadienyl; RE = Y, Gd, Tb, Ho, Er). They are potential precursors to rare-earth tellurides, a class of topical quantum materials with interesting thermoelectric, magnetic, semiconducting and charge density wave properties. Crystallographic analyses reveal a common trigonal antiprismatic core of RETe with six RE atoms supported by three different types of tellurido ligands, namely Te, Te dianions, and a previously unknown tri-tellurido ligand Te, upon which the six RE atoms are hinged into a pseudo-D arrangement. Density functional theory studies reveal that the linear hypervalent Te ion has the electronic structure characteristics of a three-centre, four-electron bond. Studies by ultraviolet–visible–near infrared spectroscopy and theoretical analyses suggest that these clusters are semiconductors with comparable band gaps to those of monocrystalline silicon and gallium arsenide. (Figure presented.).

ESCI

英语

第一 ; 通讯

2-s2.0-85188964707

Scopus

1.Department of Chemistry,Southern University of Science and Technology,Shenzhen,China
2.Key Laboratory of Rare-Earth Chemistry of Guangdong Higher Education Institutes,Southern University of Science and Technology,Shenzhen,China
3.Department of Chemistry and Engineering Research Center of Advanced Rare-Earth Materials of Ministry of Education,Tsinghua University,Beijing,China

Ding，You Song,Jiang，Xue Lian,Li，Lei,et al. Atomically precise semiconductor clusters of rare-earth tellurides[J]. Nature Synthesis,2024,3(5):655-661.

Ding，You Song,Jiang，Xue Lian,Li，Lei,Xu，Cong Qiao,Li，Jun,&Zheng，Zhiping.(2024).Atomically precise semiconductor clusters of rare-earth tellurides.Nature Synthesis,3(5),655-661.

Ding，You Song,et al."Atomically precise semiconductor clusters of rare-earth tellurides".Nature Synthesis 3.5(2024):655-661.