AI Article Synopsis
- Graphene-based materials possess exceptional physical properties, making them suitable for various applications, but they are less amenable to functionalization compared to their oxides.
- The study describes a Diels-Alder reaction involving graphite and 3,6-di(2-pyridyl)-1,2,4,5-tetrazine, leading to functionalized graphene materials that can be grafted with a europium complex.
- These modified materials emit strong red light under UV radiation and can be visualized using confocal microscopy, suggesting potential for novel properties due to their rich coordination chemistry with metal complexes.
Article Abstract
Graphene-based materials exhibit outstanding physical properties and so are potentially applicable in a great variety of fields. Unlike their corresponding oxides, graphite and graphene are not prone to functionalization. Diels-Alder reactions are among the scarce reactions that they can occur without disrupting their conjugated sp systems. Herein, the reaction between graphite and 3,6-di(2-pyridyl)-1,2,4,5-tetrazine under different conditions affords several graphene-based materials consisting of dipyridylpyridazine-functionalized few-layer graphene, multilayer graphene and graphite, the sheets of which act as ligands for the grafting of a europium complex. These three materials show strong red emission under 365 nm UV radiation. Their emitting particles can be visualized by confocal microscopy. The rich coordination chemistry of dipyridylpyridazine ligands has potential novel properties for similarly functionalized graphene-based materials grafted with other metal complexes.
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