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<p>The exploitation of the ligand effect in directing the geometric/electronic structures of metal nanoclusters is of great significance in investigating their structure-property correlations at the atomic level. We herein successfully synthesized and structurally determined two structure-correlated silver nanoclusters, Ag<sub>6</sub>(SPh<sup><i>p</i></sup>F)<sub>5</sub>(DPPF)<sub>3</sub> and Ag<sub>7</sub>(SPhCl<sub>2</sub>)<sub>7</sub>(DPPF)<sub>2</sub> (DPPF = 1,1’-bis(diphenylphosphino)ferrocene). Because of the mercaptan ligand effect, the geometric structure of Ag<sub>7</sub>(SPhCl<sub>2</sub>)<sub>7</sub>(DPPF)<sub>2</sub> was similar to Ag<sub>6</sub>(SPh<sup><i>p</i></sup>F)<sub>5</sub>(DPPF)<sub>3</sub> except that one Ag<sub>1</sub>(SR)<sub>2</sub> motif in the former cluster was replaced by a bidentate DPPF ligand. The two silver nanoclusters displayed comparable optical absorptions, suggesting that the ligand effect influenced their electronic structures. Collectively, the research findings in this work introduce the mercaptan ligand effect in directing the structures of silver nanoclusters with low nuclearity.</p>

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Mercaptan Ligand Effect in Determining the Geometric Structures of Silver Nanoclusters

  • 期刊论文

  • 发表日期：

    2025年2月9日

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  • Ahmad Waqas,
  • Luyao Lu,
  • Chen Zhu,
  • Xi Kang,
  • Manzhou Zhu

摘要

The exploitation of the ligand effect in directing the geometric/electronic structures of metal nanoclusters is of great significance in investigating their structure-property correlations at the atomic level. We herein successfully synthesized and structurally determined two structure-correlated silver nanoclusters, Ag6(SPhpF)5(DPPF)3 and Ag7(SPhCl2)7(DPPF)2 (DPPF = 1,1’-bis(diphenylphosphino)ferrocene). Because of the mercaptan ligand effect, the geometric structure of Ag7(SPhCl2)7(DPPF)2 was similar to Ag6(SPhpF)5(DPPF)3 except that one Ag1(SR)2 motif in the former cluster was replaced by a bidentate DPPF ligand. The two silver nanoclusters displayed comparable optical absorptions, suggesting that the ligand effect influenced their electronic structures. Collectively, the research findings in this work introduce the mercaptan ligand effect in directing the structures of silver nanoclusters with low nuclearity.