What is a halogen bond in supramolecular chemistry?
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A halogen bond in supramolecular chemistry is a highly directional interaction between the electrophilic region of a halogen atom and the nucleophilic region of another molecular entity. It is a non-covalent interaction that can be used as a tool in the design of functional materials through self-assembly . Halogen bonding can stabilize crystal structures and is sensitive to external stimuli, allowing for colorimetric multi-stimuli response behavior . Although currently underrepresented in polymer science, halogen bonding has the potential to be used in the design of polymeric materials for self-assembly, photo-responsive materials, and self-healing materials . Halogen bonding can also be used to manipulate supramolecular chirality in self-assemblies, leading to the formation and evolution of supramolecular helical structures . Additionally, halogen bonding can form unusual heterohexamers with multiple contacts, such as five-center tetrafurcated μ4-Br···(C, Br, C, Br) and μ4-Br···(N, Br, N, Br) halogen bonds .
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| Halogen bond (HaB) is a noncovalent interaction between a halogen atom and an electron donor, commonly observed in supramolecular chemistry. | |
16 Citations | Halogen bond is the attractive interaction between the electrophilic region of a halogen atom and the nucleophilic region of another molecular entity. |
| Halogen bonding is a supramolecular interaction between a halogen atom (XB-donor) and a polarized group (XB-acceptor) in which the halogen atom exhibits partial positive polarization on the far side of the polarized group. | |
| Halogen bonding is a weak intermolecular interaction in supramolecular chemistry that stabilizes crystal structures. It is used in the paper to achieve multi-stimuli-responsive persistent phosphorescence. | |
| Halogen bonding is a highly directional interaction used in supramolecular chemistry for molecular recognition. It is described as a potential tool in functional material design through self-assembly. |
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