The halogen bond is emerging as an important driving force for supramolecular self-assembly, and has attracted great interest in the past decade. Among the ample halogen-bonding donors, we note the ability of 1,3,5-trifluoro-2,4,6-triiodobenzene (1,3,5-TFTIB) to co-crystallize with various halogen-bonding acceptors, ranging from neutral Lewis bases (nitrogen-containing heterocycles, N-oxides, and triphenylphosphine selenide (Ph₃PSe)) to anions (halide ions and thiocyanate ion), leading to a wide diversity of supramolecular architectures. Some of them are promising optoelectronic functional materials. In this review, we concentrate on the structures of multicomponent supramolecular complexes, highlight typical examples, and point out the main possible directions that remain to be developed in this field. From the perspectives of supramolecular chemistry and crystal engineering, the complexes reviewed here should provide useful information for further design and investigation on this fascinating class of halogen-bonding supramolecular architectures.

中文翻译：

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1,3,5-三氟-2,4,6-三碘代苯（1,3,5-TFTIB）与各种Lewis碱通过卤素键相互作用共结晶

卤素键正在成为超分子自组装的重要驱动力，并且在过去的十年中引起了极大的兴趣。在充足的卤素键供体中，我们注意到1,3,5-三氟-2,4,6-三碘苯（1,3,5-TFTIB）与各种卤素键受体共结晶的能力，范围从中性路易斯碱（含氮杂环，N-氧化物和三苯基膦硒化物（Ph ₃PSe））生成阴离子（卤离子和硫氰酸根离子），导致超分子结构的多样性。其中一些是有前途的光电功能材料。在这篇综述中，我们将重点介绍多组分超分子复合物的结构，重点介绍典型实例，并指出该领域仍有待发展的主要方向。从超分子化学和晶体工程的角度来看，本文所述的配合物应为此类迷人的卤素键合超分子体系结构的进一步设计和研究提供有用的信息。