Abstract The excited state properties of Pt(II) complexes are strongly influenced by their microenvironment and by intermolecular interactions. In this work, we investigated the photoluminescence of six Pt(II) complexes adsorbed onto a layered nanoclay, namely Laponite® (LAP). The excellent water dispersibility and gel-forming nature of the LAP was exploited to achieve a class of versatile materials. In particular, we report on the comparative photophysics of the dry powders and the hydrogels. Steady-state and time-resolved photoluminescence spectroscopy were used to assess the role of structural features at molecular level on the interaction between the nanodiscs, which in turn affects the intermolecular coupling of the coordination compounds in the excited state.

中文翻译：

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Pt(II) 复合纳米粘土杂化材料作为干粉和水凝胶的比较光物理研究

摘要 Pt(II)配合物的激发态性质受其微环境和分子间相互作用的强烈影响。在这项工作中，我们研究了吸附在层状纳米粘土上的六种 Pt(II) 配合物的光致发光，即 Laponite® (LAP)。LAP 优异的水分散性和凝胶形成特性被用来实现一类多功能材料。特别是，我们报告了干粉和水凝胶的比较光物理学。稳态和时间分辨光致发光光谱用于评估分子水平的结构特征对纳米圆盘之间相互作用的作用，这反过来又影响激发态配位化合物的分子间耦合。