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Updated: Mar 29, 2026

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
Published on: December 29, 2016
Copper(i) halide clusters based upon ferrocenylchalcogenoether ligands: donors, halides and semi-rigidity effects on
1School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211800, China. sjing@njtech.edu.cn and School of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China. zhudr@njtech.edu.cn.
Abstract:
Six copper(i) halide clusters based upon ferrocenyltelluroethers or ferrocenylselenoethers, 1-6, have been synthesized and structurally characterized by an X-ray crystallographic study. These structures include a discrete step-cubane Cu4I4 cluster, a 1D chain with rhomboid Cu2X2 clusters, a 1D chain with cubane Cu4I4 clusters and a 2D network with Cu2I2 clusters. 1-3 are the first structurally characterized example of copper(i) clusters with telluroethers. Their different nuclearities and geometries can be attributed to the different donor atoms and chain flexibility in the ligands. The catalytic activities of six clusters were then investigated in the Ullmann C-N cross-coupling reaction and 2 displayed the best performance with a target product N-(4-phenyl)imidazole in 91.3% yield. From the viewpoint of structure, the specific steric acceptance around Cu(i) in 2 may allow imidazole and iodobenzene to stepwise coordinate with the copper center and give the target product effectively.
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