Institute of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, P. R. China.
School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, P. R. China.
Nano Lett. 2023 Jan 11;23(1):235-242. doi: 10.1021/acs.nanolett.2c04163. Epub 2022 Dec 27.
The emerging metal nanocluster provides a platform for the investigation of structural features, unique properties, and structure-property correlation of nanomaterials at the atomic level. Construction of open sites on the surface of the metal nanocluster is a long-pursued but challenging goal. Herein, we realized the construction of "open organic sites" in a metal nanocluster for the first time. Specifically, we introduce the PNP (2,6-bis(diphenylphosphinomethyl)pyridine) pincer ligand in the synthesis of the gold nanocluster, enabling the construction of a structurally precise Au(PNP) nanocluster. The rigidity and the unique bonding mode of PNP lead to open nitrogen sites on the surface of the Au(PNP) nanocluster, which have been utilized as multifunctional sites in this work for efficient kinetic resolution and catalysis. The gold pincer nanocluster and the open nitrogen site-induced performance will be enlightening for the construction of multifunctional metal nanoclusters.
新兴的金属纳米团簇为在原子水平上研究纳米材料的结构特征、独特性质和结构-性质关系提供了一个平台。在金属纳米团簇表面构建开放位是一个长期追求但具有挑战性的目标。在此，我们首次实现了在金属纳米团簇中构建“开放有机位”。具体而言，我们在金纳米团簇的合成中引入了 PNP（2,6-双（二苯基膦基）吡啶）钳形配体，从而能够构建结构精确的 Au(PNP)纳米团簇。PNP 的刚性和独特的键合模式导致 Au(PNP)纳米团簇表面存在开放的氮位，这些氮位在这项工作中被用作多功能位，用于高效动力学拆分和催化。金钳形纳米团簇和开放氮位诱导的性能将为构建多功能金属纳米团簇提供启示。
