Accelerating Crystallization of Open Organic Materials by Poly(ionic liquid)s.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION(2020)
Abstract
The capability to significantly shorten the synthetic period of a broad spectrum of open organic materials presents an enticing prospect for materials processing and applications. Herein we discovered 1,2,4-triazolium poly(ionic liquid)s (PILs) could serve as a universal additive to accelerate by at least one order of magnitude the growth rate of representative imine-linked crystalline open organics, including organic cages, covalent organic frameworks (COFs), and macrocycles. This phenomenon results from the active C5-protons in poly(1,2,4-triazolium)s that catalyze the formation of imine bonds, and the simultaneous salting-out effect (induced precipitation by decreasing solubility) that PILs exert on these crystallizing species.
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Key words
crystallization, open organic materials, organic cages, poly(ionic liquid)s
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