[Pt1Ag37(SAdm)21(Dppp)3Cl6]2+: intercluster transformation and photochemical properties,Inorganic Chemistry Frontiers

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[Pt1Ag37(SAdm)21(Dppp)3Cl6]2+: intercluster transformation and photochemical properties
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2022-06-20 , DOI: 10.1039/d2qi01082h
Yaru Zhen _{1,

2} , Shan Jin ₃ , Xi Kang _{1,

2} , Chang Xu ₁ , Cao Fang _{1,

2} , Daqiao Hu _{1,

2} , Manzhou Zhu _{1,

2}

Affiliation

Ligand-exchange-induced structure transformation has been exploited as an effective approach to dictate the size and structure of nanoparticles with atomic precision. However, phosphine ligand induced intercluster transformation remains rarely explored. Herein, we report the controllable preparation and the structural elucidation of a [Pt₁Ag₃₇(SAdm)₂₁(Dppp)₃Cl₆]²⁺ nanocluster (Pt₁Ag₃₇; where Dppp is 1,3-bis(diphenyphosphino)propane and HSAdm is 1-adamantanethiol). Notably, the reaction of Pt₁Ag₃₇ with PPh₃ triggers an intercluster transformation, giving rise to a stable and smaller-sized nanocluster, [Pt₁Ag₂₈(SAdm)₁₈(PPh₃)₄]²⁺ (Pt₁Ag₂₈). Such an intercluster transformation is systematically monitored with ESI-MS and UV-vis. The photochemical properties of Pt₁Ag₃₇ and Pt₁Ag₂₈ nanoclusters are further investigated. Of note, in the presence of chiral Bdpp diphosphines (Bdpp = 2,4-bis-(diphenylphosphino) pentane), the enantiomeric Pt₁Ag₃₇(SAdm)₂₁(R/S-Bdpp)₃Cl₆ (R/S-Pt₁Ag₃₇) are obtained, and such chiral nanoclusters displayed obvious optical activity. The results in this work hopefully shed light on the future preparation of metal nanoclusters for customized applications.

中文翻译：

[Pt1Ag37(SAdm)21(Dppp)3Cl6]2+：簇间转化和光化学性质

配体交换诱导的结构转变已被用作以原子精度决定纳米颗粒大小和结构的有效方法。然而，膦配体诱导的簇间转化仍然很少被探索。在此，我们报告了 [Pt ₁ Ag ₃₇ (SAdm) ₂₁ (Dppp) ₃ Cl ₆ ] ²⁺纳米团簇 (Pt ₁ Ag ₃₇ ; 其中 Dppp 是 1,3-双(二苯膦基)丙烷)的可控制备和结构解析HSAdm 是 1-金刚硫醇）。值得注意的是，Pt ₁ Ag ₃₇与 PPh _3的反应触发簇间转变，产生稳定且尺寸更小的纳米簇[Pt ₁ Ag ₂₈ (SAdm) ₁₈ (PPh ₃ ) ₄ ] ²⁺ (Pt ₁ Ag ₂₈ )。使用 ESI-MS 和 UV-vis 系统地监测这种簇间转换。_{进一步研究了Pt 1} Ag ₃₇和Pt ₁ Ag ₂₈纳米团簇的光化学性质。值得注意的是，在手性 Bdpp 二膦（Bdpp = 2,4-双-（二苯基膦基）戊烷）存在下，对映体 Pt ₁ Ag ₃₇ (SAdm) ₂₁ (得到了R / S -Bdpp) ₃ Cl ₆ ( R / S -Pt ₁ Ag ₃₇ )，这种手性纳米团簇表现出明显的光学活性。这项工作的结果有望为未来制备用于定制应用的金属纳米团簇提供启示。

更新日期：2022-06-24

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