2,4,6-tris-4-(bromophenoxy)-1,3,5-triazine: a hexagonal host framework assembled with robust Br⋯Br trimer synthons

Add time:09/08/2019    Source:sciencedirect.com

Based on the trigonal symmetry of the title triazine 1 and the Br3 supramolecular synthon, a hexagonal host system has been designed and shown to include hexachlorobenzene, 2,4,6-collidine, 1-methylnaphthalene and mesitylene guests in its porous structure. In the 1.hexachlorobenzene (2:1) inclusion clathrate 2, the guest molecule is ordered and bonded to the host through Cl⋯O interactions. In the channel structures 3, 4 and 5, the solvent molecules are disordered and the host-guest stoichiometry is 1:1. These supramolecular structures highlight the importance of weak hydrogen bonds and heteroatom interactions in the self-assembly of target networks. The generality of the new host system is also demonstrated.

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