Issue 21, 2024

Giant oligomeric porous cage-based molecules

Abstract

Most reported porous materials are either extended networks or monomeric discrete cavities; indeed, porous structures of intermediate size have scarcely been explored. Herein, we present the stepwise linkage of discrete porous metal–organic cages or polyhedra (MOPs) into oligomeric structures with a finite number of MOP units. The synthesis of these new oligomeric porous molecules entails the preparation of 1-connected (1-c) MOPs with only one available azide reactive site on their surface. The azide-terminated 1-c MOP is linked through copper(I)-catalysed azide–alkyne cycloaddition click chemistry with additional alkyne-terminated 1-c MOPs, 4-c clusters, or 24-c MOPs to yield three classes of giant oligomeric molecules: dimeric, tetrameric, or satellite-like, respectively. Importantly, all the giant molecules that we synthesised are soluble in water and permanently porous in the solid state.

Graphical abstract: Giant oligomeric porous cage-based molecules

Supplementary files

Article information

Article type
Edge Article
Submitted
25 Mar 2024
Accepted
29 Apr 2024
First published
30 Apr 2024
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2024,15, 7992-7998

Giant oligomeric porous cage-based molecules

A. Cortés-Martínez, C. von Baeckmann, L. Hernández-López, A. Carné-Sánchez and D. Maspoch, Chem. Sci., 2024, 15, 7992 DOI: 10.1039/D4SC01974A

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