Molecular clusters (MCs) are monodispersed, precisely defined ensembles of atom collections featured with shape-persistent architectures that can deliver certain functions independently. Their molecular compositions and surface functionalities can be tailored feasibly in a predefined manner, and they can be applied as basic structural units to be engineered into materials with desirable hierarchical structures and enriched functions. The chemical systems also offer great opportunities for the design and fabrication of soft structural materials without the chain topologies of polymers. The bulks of MC assemblies demonstrate viscoelasticity that is used to be considered as the unique feature of polymers, while the MC systems are distinct from polymers since their elasticities are resilient even at temperatures 100 K above their glass transition temperatures. The understanding of their anomalous viscoelasticity and the extended studies of general structure–property relationships are desired for the development of new chemical systems for emergent functions and the possibilities to resolve the intrinsic trade-offs of traditional materials.

中文翻译：

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分子簇结构弛豫动力学的新兴研究趋势：从构-质关系到新功能预测


分子簇 （MC） 是单分散的、精确定义的原子集合集合，具有形状持久架构，可以独立提供某些功能。它们的分子组成和表面功能可以以预定义的方式进行定制，并且可以作为基本结构单元应用于具有理想分层结构和丰富功能的材料中。化学系统还为设计和制造没有聚合物链拓扑的软结构材料提供了巨大的机会。MC 组件的主体表现出粘弹性，这在过去被认为是聚合物的独特特性，而 MC 系统与聚合物不同，因为它们的弹性即使在高于其玻璃化转变温度 100 K 的温度下也具有弹性。了解它们的异常粘弹性和对一般结构-性能关系的扩展研究对于开发用于紧急功能的新化学系统和解决传统材料内在权衡的可能性是必要的。