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<p>FLPClusters, which are structurally precise metal clusters incorporating Frustrated Lewis Pairs (FLPs), represent a promising class of FLP catalysts. Although FLPClusters have emerged only recently, their precise and strategic synthesis remains underdeveloped. Herein, we report the approach for the strategic synthesis of FLPClusters featuring well-defined, tailorable, and accessible FLP active sites. Our approach utilizes bis(2-(diphenylphosphino)phenyl)ether (DPEphos) as a rigid surface ligand. The two phosphine termini of DPEphos bridge adjacent metal atoms, while the central ether oxygen atom (Lewis base) is geometrically constrained, enabling the formation of stable FLPs with copper atoms (Lewis acid) on the cluster surface. By modulating the structure of ancillary thiolate ligands, we successfully synthesized three FLPClusters. These FLPClusters demonstrate high catalytic activity in the hydrolytic oxidation of organosilanes to silanols. Both theoretical and experimental studies confirm that the catalysis is FLP-driven. Crucially, their catalytic performance scales with the number of FLP sites present.</p>

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Strategic synthesis of FLPClusters toward catalysis

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月12日

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  • Zhenhao Geng,
  • Ayisha He,
  • Xuexin You,
  • Qingyuan Wu,
  • Jingjuan Wang,
  • Huifang Guo,
  • Simin Li,
  • Zhenlang Xie,
  • Xuekun Gong,
  • Muyi Yang,
  • Dongjie Zuo,
  • Rong Huo,
  • Fengyu Li,
  • Nanfeng Zheng,
  • Hui Shen

摘要

FLPClusters, which are structurally precise metal clusters incorporating Frustrated Lewis Pairs (FLPs), represent a promising class of FLP catalysts. Although FLPClusters have emerged only recently, their precise and strategic synthesis remains underdeveloped. Herein, we report the approach for the strategic synthesis of FLPClusters featuring well-defined, tailorable, and accessible FLP active sites. Our approach utilizes bis(2-(diphenylphosphino)phenyl)ether (DPEphos) as a rigid surface ligand. The two phosphine termini of DPEphos bridge adjacent metal atoms, while the central ether oxygen atom (Lewis base) is geometrically constrained, enabling the formation of stable FLPs with copper atoms (Lewis acid) on the cluster surface. By modulating the structure of ancillary thiolate ligands, we successfully synthesized three FLPClusters. These FLPClusters demonstrate high catalytic activity in the hydrolytic oxidation of organosilanes to silanols. Both theoretical and experimental studies confirm that the catalysis is FLP-driven. Crucially, their catalytic performance scales with the number of FLP sites present.