ISIS and icFRC, Université de Strasbourg and CNRS, 8 rue Gaspard Monge, Strasbourg 67000, France.
University of Strasbourg Institute for Advanced Study (USIAS), 5 allée du Général Rouvillois, Strasbourg 67083, France.
Nat Chem. 2016 Jan;8(1):10-5. doi: 10.1038/nchem.2383. Epub 2015 Nov 16.
The self-assembly of chemical entities represents a very attractive way to create a large variety of ordered functional structures and complex matter. Although much effort has been devoted to the preparation of supramolecular nanostructures based on different chemical building blocks, an understanding of the mechanisms at play and the ability to monitor assembly processes and, in turn, control them are often elusive, which precludes a deep and comprehensive control of the final structures. Here the complex supramolecular landscape of a platinum(II) compound is characterized fully and controlled successfully through a combination of supramolecular and photochemical approaches. The supramolecular assemblies comprise two kinetic assemblies and their thermodynamic counterpart. The monitoring of the different emission properties of the aggregates, used as a fingerprint for each species, allows the real-time visualization of the evolving self-assemblies. The control of multiple supramolecular pathways will help the design of complex systems in and out of their thermodynamic equilibrium.
化学实体的自组装代表了一种非常有吸引力的方式，可以创建各种有序的功能结构和复杂物质。尽管人们已经投入了大量的精力来制备基于不同化学构建块的超分子纳米结构，但对作用机制的理解以及监测组装过程并能够控制它们的能力往往难以捉摸，这妨碍了对最终结构的深入和全面控制。在这里，通过结合超分子和光化学方法，对一个铂（II）化合物的复杂超分子景观进行了全面的表征和成功的控制。这些超分子组装体包括两个动力学组装体及其热力学对应物。通过监测聚集体不同的发射特性（用作每种物质的特征指纹），可以实时可视化不断演变的自组装过程。对多种超分子途径的控制将有助于设计处于热力学平衡内外的复杂系统。
