Halogen bonded Borromean networks by design: topology invariance and metric tuning in a library of multi-component systems

Vijith Kumar, Tullio Pilati, Giancarlo Terraneo, Franck Meyer, Pierangelo Metrangolo, Giuseppe Resnati (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)


A library of supramolecular anionic networks showing Borromean interpenetration has been prepared by self-assembly of crypt-222, several metal or ammonium halides, and five bis-homologous α,ω-diiodoperfluoroalkanes. Halogen bonding has driven the formation of these anionic networks. Borromean entanglement has been obtained starting from all the four used cations, all the three used anions, but only two of the five used diiodoperfluoroalkanes. As the change of the diiodoperfluoroalkane, the cation, or the anion has a different relative effect on the metrics and bondings of the self-assembled systems, it can be generalized that bonding, namely energetic, features play here a less influential role than metric features in determining the topology of the prepared tetra-component cocrystals. This conclusion may hold true for other multi-component systems and may function as a general heuristic principle when pursuing the preparation of multi-component systems having the same topology but different composition.

Original languageEnglish
Pages (from-to)1801-1810
Number of pages10
JournalChemical Science
Issue number3
Publication statusPublished - 2017
MoE publication typeA1 Journal article-refereed


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