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Issue 17, 2018
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Conformation-induced light emission switching of N-acylhydrazone systems

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Abstract

N-Acylhydrazones have been described as responsive compounds to a wide variety of triggers that are able to induce reversible structural changes. These reversible constitutional, conformational or configurational changes caused by physical or chemical stimuli are useful tools in designing molecular switches. We report herein bis-N-acylhydrazones as new switchable-light emissive molecules triggered by light and/or solvents. The emissive properties could be explained by phototautomerisation (Excited State Intramolecular Proton Transfer) and by formation of aggregates (Aggregation-Induced Emission). We investigated the influence of structural particularities brought in by electron-donor or electron-withdrawing substituents as well as the requirement of several hydrazone bonds in the molecular structure for the generation of light.

Graphical abstract: Conformation-induced light emission switching of N-acylhydrazone systems

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Supplementary files

Publication details

The article was received on 18 Apr 2018, accepted on 04 Jun 2018 and first published on 05 Jun 2018


Article type: Paper
DOI: 10.1039/C8NJ01880D
Citation: New J. Chem., 2018,42, 14111-14119
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    Conformation-induced light emission switching of N-acylhydrazone systems

    A. G. Coman, A. Paun, C. C. Popescu, N. D. Hădade, C. C. Anghel, A. M. Mădălan, P. Ioniţă and M. Matache, New J. Chem., 2018, 42, 14111
    DOI: 10.1039/C8NJ01880D

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