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<p>The development of new types of alloy nanoclusters with strong photoluminescence is essential for enabling downstream applications related to their photophysical properties. In this study, we reported the synthesis and structural characterization of a silver-copper alloy nanocluster, [Ag<sub><i>x</i></sub>Cu<sub>25−<i>x</i></sub>(SPhCl<sub>2</sub>)<sub>16</sub>(DPPE)<sub>4</sub>](BPh<sub>4</sub>), which displayed the phosphorescent behavior. Single-crystal X-ray crystallography revealed that the Ag<sub><i>x</i></sub>Cu<sub>25−<i>x</i></sub> nanocluster consists of an icosahedral Ag<sub>13</sub> kernel, stabilized by a saddle-like surface shell of Ag<sub><i>n</i></sub>Cu<sub>12−<i>n</i></sub>(SPhCl<sub>2</sub>)<sub>16</sub>(DPPE)<sub>4</sub>. The nanocluster was emissive in both solution and crystalline states, and its phosphorescent nature was determined. Overall, this work showcases a phosphorescent Ag-Cu alloy nanocluster, expanding the library of emissive clusters with strong photoluminescence.</p>

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A Phosphorescent Silver-Copper Nanocluster with a Saddle-Like Stabilizing Surface

  • 期刊论文

  • 发表日期：

    2025年6月2日

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  • Fei Li,
  • Chen Zhu,
  • Luyao Lu,
  • Mingshuai Yu,
  • Xi Kang,
  • Manzhou Zhu

摘要

The development of new types of alloy nanoclusters with strong photoluminescence is essential for enabling downstream applications related to their photophysical properties. In this study, we reported the synthesis and structural characterization of a silver-copper alloy nanocluster, [AgxCu25−x(SPhCl2)16(DPPE)4](BPh4), which displayed the phosphorescent behavior. Single-crystal X-ray crystallography revealed that the AgxCu25−x nanocluster consists of an icosahedral Ag13 kernel, stabilized by a saddle-like surface shell of AgnCu12−n(SPhCl2)16(DPPE)4. The nanocluster was emissive in both solution and crystalline states, and its phosphorescent nature was determined. Overall, this work showcases a phosphorescent Ag-Cu alloy nanocluster, expanding the library of emissive clusters with strong photoluminescence.