安徽大学朱满洲课题组近日取得一项新成果，他们研究了配体对原子精密铜纳米团簇几何结构和催化活性的影响。该项研究成果发表在2024年8月19日出版的《结构化学》上。

课题组报道了一种化学式为Cu₂₈H₁₀(SPh^pOMe)₁₈(DPPOE)₃的含氢Cu₂₈纳米团簇的可控制备和结构测定。将Cu₂₈H₁₀(SPh^pOMe)₁₈(DPPOE)₃与先前报道的Cu₂₈H₁₀(SPh^pOMe)₁₈(TPP)₃结合，团队构建了具有相似结构和性能的结构相关的团簇对。

据此，课题组分析了配体对铜纳米团簇几何结构和物理化学性质的影响(包括光学吸收和对特定产氢反应的催化活性)。总的来说，这项工作提出了一个结构相关的Cu₂₈对，可以在原子水平上理解配体对金属纳米材料结构和性质的影响。

据悉，配体效应在Au和Ag纳米团簇上已经得到了广泛的研究，而在Cu纳米团簇上的研究相对较少。这种稀缺性主要归因于Cu纳米团簇相对于Au/Ag类似物的固有不稳定特性。

附：英文原文

Title: Ligand effects on geometric structures and catalytic activities of atomically precise copper nanoclusters

Author: anonymous

Issue&Volume: 2024-08-19

Abstract: The ligand effects have been extensively investigated in Au and Ag nanoclusters, while corresponding research efforts focusing on Cu nanoclusters remain relatively insufficient. Such a scarcity could primarily be attributed to the inherent instability of Cu nanoclusters relative to their Au/Ag analogues. In this work, we reported the controllable preparation and structural determination of a hydride-containing Cu28 nanocluster with a chemical formula of Cu28H10(SPhpOMe)18(DPPOE)3. The combination of Cu28H10(SPhpOMe)18(DPPOE)3 and previously reported Cu28H10(SPhoMe)18(TPP)3 constructed a structure-correlated cluster pair with comparable structures and properties. Accordingly, the ligand effects in directing the geometric structures and physicochemical properties (including optical absorptions and catalytic activities towards the selected hydrogenation) of copper nanoclusters were analyzed. Overall, this work presented a structure-correlated Cu28 pair that enables the atomic-level understanding of ligand effects on structures and properties of metal nanoclusters.

DOI: 10.1016/j.cjsc.2024.100411

Source: http://cjsc.ac.cn/cms/issues/688