Small Ag_n⁺ clusters were prepared using a customized magnetron sputtering (MagS) cluster source, and their reactions with aromatic amine molecules were observed using a reflection time-of-flight mass spectrometer (TOF-MS). Interestingly, it was found that o-phenylenediamine (OPD) and m-phenylenediamine (MPD) readily reacted with the small Ag_n⁺ (n = 1–3) clusters, resulting in the formation of [Ag(OPD)_1–2]⁺ and [Ag(MPD)_1–3]⁺ complexes. In contrast, p-phenylenediamine (PPD) was relatively inert with reaction products rarely being observed. Employing DFT calculations, we illustrated the altered electrostatic interaction distribution and orbital overlap correlation, which account for the diversity in forming N–Ag⁺–N complexes or simply hosting a metal ion around the aromatic ring. Further, utilizing the soft-landing deposition technique, we prepared mass-selected cluster deposits and conducted a Raman spectroscopic study.

中文翻译：

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气相合成Ag为中心的苯二胺团簇

使用定制的磁控溅射（MagS）簇源制备小型Ag _n ⁺簇，并使用反射飞行时间质谱仪（TOF-MS）观察它们与芳族胺分子的反应。有趣的是，我们发现Ö苯二胺（OPD）和米苯二胺（MPD）容易地与小的Ag反应_Ñ ⁺（Ñ = 1-3）团簇，从而导致形成将[Ag（OPD）_1-2 ] ⁺和[Ag（MPD）_1-3 ] ⁺复合物。相反，p-苯二胺（PPD）相对惰性，很少观察到反应产物。使用DFT计算，我们说明了静电相互作用分布和轨道重叠相关性的变化，这说明了形成N–Ag ⁺ –N络合物或仅在芳香环周围包含金属离子的多样性。此外，利用软着陆沉积技术，我们准备了质量选择的团簇沉积物，并进行了拉曼光谱研究。