Encapsulation of Isolated Luminophores within Supramolecular Cages

• DOI: 10.1002/anie.201707097
• Publication Date: 2017-09-18T14:57:58Z
• Authors: Marcel Handke; Takuji Adachi; Chunhua Hu; Michael D. Ward
• Keywords: Rhodamine; Rhodamine B; Limiting

Abstract The sequestration of luminophores within supramolecular polyhedral compartments a crystalline zeolite‐like hydrogen‐bonded framework illustrates unique approach to limiting the self‐quenching ordinarily exhibited at high concentrations achievable in this framework. A range differently sized luminescent guests, namely coumarin 1, 4, fluorescein, [Ru(bpy) 3 ]Cl 2 , and rhodamine B, can be encapsulated amounts up one molecule per cage, equivalent concentration 0.175 m which is significantly higher than aggregation‐induced quenching occurs other media. luminescence spectra guests are consistent with presence isolated monomers absence self‐quenching. emission color single crystals tuned readily from blue red through choice guest molecules. These observations promise an organic solid‐state lasing compounds if sufficient size quality prepared.