Light-directed trapping of metastable intermediates in a self-assembly process

Joonsik Seo, Joonyoung F. Joung, Sungnam Park (), Young Ji Son, Jaegeun Noh and Jong-Man Kim ()
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Joonsik Seo: Hanyang University
Joonyoung F. Joung: Korea University
Sungnam Park: Korea University
Young Ji Son: Hanyang University
Jaegeun Noh: Hanyang University
Jong-Man Kim: Hanyang University

Nature Communications, 2020, vol. 11, issue 1, 1-9

Abstract: Abstract Self-assembly is a dynamic process that often takes place through a stepwise pathway involving formation of kinetically favored metastable intermediates prior to generation of a thermodynamically preferred supramolecular framework. Although trapping intermediates in these pathways can provide significant information about both their nature and the overall self-assembly process, it is a challenging venture without altering temperature, concentrations, chemical compositions and morphologies. Herein, we report a highly efficient and potentially general method for “trapping” metastable intermediates in self-assembly processes that is based on a photopolymerization strategy. By employing a chiral perylene-diimide possessing a diacetylene containing an alkyl chain, we demonstrated that the metastable intermediates, including nanoribbons, nanocoils and nanohelices, can be effectively trapped by using UV promoted polymerization before they form thermodynamic tubular structures. The strategy developed in this study should be applicable to naturally and synthetically abundant alkyl chain containing self-assembling systems.

Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-20172-6

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DOI: 10.1038/s41467-020-20172-6

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