A new class of amphiphilic tetradentate platinum(II) Schiff base complexes has been designed and synthesized. The self-assembly properties by exploiting the potential Pt⋯Pt interactions of amphiphilic platinum(II) Schiff base complexes in the solution state have been systematically investigated. The presence of Pt⋯Pt interactions has further been supported by computational studies and non-covalent interaction (NCI) analysis of the dimer of the complex. The extent of the non-covalent Pt⋯Pt and π–π interactions could be regulated by a variation of the solvent compositions and the hydrophobicity of the complexes, which is accompanied by attractive spectroscopic and luminescence changes and leads to diverse morphological transformations. The present work represents a rare example of demonstration of directed cooperative assembly of amphiphilic platinum(II) Schiff base complexes by intermolecular Pt⋯Pt interactions in solution with an in-depth mechanistic investigation, providing guiding principles for the construction of supramolecular structures with desirable properties using platinum(II) Schiff base building blocks.

中文翻译：

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两亲性铂(II)席夫碱配合物的超分子组装：通过合理的分子设计和溶剂控制实现多样化的光谱变化和纳米结构

设计并合成了一类新型两亲性四齿铂( II )席夫碱配合物。通过利用两亲性铂( II )席夫碱配合物在溶液状态下潜在的Pt⋯Pt相互作用，系统地研究了自组装特性。 Pt⋯Pt 相互作用的存在得到了计算研究和复合物二聚体非共价相互作用 (NCI) 分析的进一步支持。非共价 Pt⋯Pt 和 π-π 相互作用的程度可以通过溶剂组成和络合物疏水性的变化来调节，这伴随着引人注目的光谱和发光变化，并导致不同的形态转变。本工作代表了通过溶液中分子间Pt⋯Pt相互作用定向协同组装两亲性铂( II )席夫碱配合物的罕见例子，并进行了深入的机理研究，为构建具有所需性能的超分子结构提供了指导原则使用铂( II )希夫碱构建块。