Of the great classes of nanocluster crystallization, “cocrystallization” has gained significant attention due to its elucidation of both intracluster structures and intercluster packing modes. In addition, the intermolecular interactions and resulting assembled constructs endow the cocrystallized materials with novel physical and chemical properties that differ from those of the individual components. Heterogeneous cocrystallization has recently emerged as a new “growth point” in nanocluster science. In this Perspective, we elaborate on relevant advances in studying the cocrystallization of metal nanoclusters. The packing patterns of the cocrystallized nanoclusters, as well as their geometric structures, are discussed case by case. In addition, the intercluster interactions among heterogeneous nanoclusters that account for the cocrystallization are also disclosed. The goal of this Perspective is to provide researchers attempting to study nanocluster cocrystallization with research fundamentals and to further propose some possible approaches (or new growth points) for the design and fabrication of cocrystallized cluster systems.

中文翻译：

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原子精确的纳米团簇的共结晶

在纳米簇的大类结晶中，“共结晶”由于阐明了簇内结构和簇间堆积模式而备受关注。此外，分子间的相互作用和由此产生的组装结构使共结晶材料具有不同于各个组分的新颖的物理和化学性质。近来，异质共结晶已成为纳米团簇科学中的新“增长点”。在此观点下，我们详细介绍了研究金属纳米团簇共结晶的相关进展。逐个讨论共结晶纳米团簇的堆积图案及其几何结构。此外，还公开了解释共结晶的异质纳米簇之间的簇间相互作用。本“观点”的目的是为研究人员提供具有研究基础的纳米团簇共晶研究，并为共晶团簇系统的设计和制造进一步提出一些可能的方法（或新的生长点）。