Highly photostable and fluorescent microporous solids prepared via solid-state 
entrapment of boron dipyrromethene dyes in a nascent metal–organic framework

Glembockyte, Viktorija; Frenette, Mathieu; Mottillo, Cristina; Durantini, Andrés M.; Gostick, Jeff; Štrukil, Vjekoslav; Friščić, Tomislav; Cosa, Gonzalo

doi:10.1021/jacs.8b09608

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Highly photostable and fluorescent microporous solids prepared via solid-state entrapment of boron dipyrromethene dyes in a nascent metal–organic framework

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Glembockyte, Viktorija
Chemical Biology, Max Planck Institute for Medical Research, Max Planck Society;

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Glembockyte, V., Frenette, M., Mottillo, C., Durantini, A. M., Gostick, J., Štrukil, V., et al. (2018). Highly photostable and fluorescent microporous solids prepared via solid-state entrapment of boron dipyrromethene dyes in a nascent metal–organic framework. Journal of the American Chemical Society, 140(49), 16882-16887. doi:10.1021/jacs.8b09608.

Cite as: https://hdl.handle.net/21.11116/0000-000F-F7EF-E

Abstract

We report a strategy to synthesize highly emissive, photostable, microporous materials by solid-state entrapment of boron dipyrromethene (BODIPY) fluorophores in a metal–organic framework. Solvent-free mechanochemistry or accelerated aging enabled quantitative capture and dispersal of the PM605 dye within the ZIF-8 framework starting from inexpensive, commercial materials. While the design of emissive BODIPY solids is normally challenged by quenching in a densely packed environment, herein reported PM605@ZIF-8 materials show excellent emissive properties and to the best of our knowledge an unprecedented ∼10-fold enhancement of BODIPY photostability. Time-resolved and steady-state fluorescence studies of PM605@ZIF-8 show that interchromophore interactions are minimal at low dye loadings, but at higher ones lead to through-pore energy transfer between chromophores and to aggregate species.