Saha Binoy K, Veluthaparambath Ragima V P, Krishna G Vibha
Department of Chemistry, Pondicherry University, Puducherry, 605014, India.
Chem Asian J. 2023 Apr 17;18(8):e202300067. doi: 10.1002/asia.202300067. Epub 2023 Mar 13.
Halogen⋯halogen interaction is a highly debated and important topic in crystal engineering and supramolecular chemistry. There are controversies about the nature and geometry of these interactions. F, Cl, Br and I are the four halogens involved in these interactions. Very often the lighter and the heavier halogens behave differently. The nature of the interactions also depends upon the nature of the atom which is covalently bonded to the halogens. In this review different homo-halogen⋯halogen, hetero-halogen⋯halogen, halogen⋯halide interactions, their natures, and preferred geometries have been discussed. Different motifs of halogen⋯halogen interactions, interchangeability of the halogen⋯halogen interactions with other supramolecular synthons and interchangeability between different halogens and other functional groups also have been discussed. Some of the important applications, in which halogen⋯halogen interactions have been successfully employed, are mentioned.
卤素⋯卤素相互作用是晶体工程和超分子化学中一个备受争议且重要的话题。关于这些相互作用的本质和几何结构存在争议。氟、氯、溴和碘是参与这些相互作用的四种卤素。通常，较轻和较重的卤素表现不同。相互作用的本质还取决于与卤素共价键合的原子的性质。在这篇综述中，讨论了不同的同卤原子⋯卤素、异卤原子⋯卤素、卤素⋯卤化物相互作用、它们的本质以及优选的几何结构。还讨论了卤素⋯卤素相互作用的不同模式、卤素⋯卤素相互作用与其他超分子合成子的互换性以及不同卤素与其他官能团之间的互换性。文中提到了一些成功应用卤素⋯卤素相互作用的重要实例。
