Covalent Post-assembly Modification Triggers Multiple Structural Transformations of a Tetrazine-Edged Fe4L6 Tetrahedron
| Autor: | Roberts, Derrick A, Pilgrim, Ben S, Sirvinskaite, Giedre, Ronson, Tanya K, Nitschke, Jonathan R |
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| Přispěvatelé: | Roberts, Derrick [0000-0002-4663-7475], Pilgrim, Ben [0000-0002-3353-3327], Ronson, Tanya [0000-0002-6917-3685], Nitschke, Jonathan [0000-0002-4060-5122], Apollo - University of Cambridge Repository |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| ISSN: | 0002-7863 1520-5126 |
| Popis: | Covalent post-assembly modification (PAM) reactions are useful synthetic tools for functionalizing and stabilizing self-assembled metal-organic complexes. Recently, PAM reactions have also been explored as stimuli for triggering supramolecular structural transformations. Herein we demonstrate the use of inverse electron-demand Diels-Alder (IEDDA) PAM reactions to induce supramolecular structural transformations starting from a tetrazine-edged FeII4L6 tetrahedral precursor. Following PAM, this tetrahedron rearranged to form three different architectures depending on the addition of other stimuli: an electron-rich aniline or a templating anion. By tracing the stimulus-response relationships within the system, we deciphered a network of transformations that mapped different combinations of stimuli onto specific transformation products. Given the many functions being developed for self-assembled three-dimensional architectures, this newly established ability to control the interconversion between structures using combinations of different stimulus types may serve as the basis for switching the functions expressed within a system. |
| Databáze: | OpenAIRE |
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