Abstract
| - Blue light-emitting boron 8-hydroxyquinolinate and 8-hydroxyquinaldinate complexes havebeen formed inside boron zeolites Beta, MCM-22, and ferrierite, and on layered ITQ-2 andITQ-6 zeolites starting from the corresponding ligands and boron dislodged from frameworkpositions. The luminescence properties, i.e., emission intensity, maximum wavelength, andlifetime of the ship-in-a-bottle quinolinate complexes are strongly modulated by the zeolitehost. Besides the species responsible for the photoluminescence, other longer-lived transientspecies, presumably related to electron transport, are also photochemically generated andhave been detected by laser flash photolysis.
- Ship-in-a-bottle synthesis of photoluminescent boron 8-hydroxyquinolinate and 8-hydroxyquinaldinate complexes has been accomplished inside the cavities of different boron-containing zeolites and mesoporous materials. The entrapped complexes exhibit differences in emission spectra depending on the dimensions of the zeolite.
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