AIE-active β-diketones containing pyridiniums: fluorogenic binding to cellulose and water-vapour-recoverable mechanochromic luminescence†
Abstract
A series of pyridinium ring substituted β-diketones were found to exhibit aggregation-induced emission (AIE) and water-vapour recoverable mechanochromic luminescence in the solid state. Certain water-soluble β-diketones could selectively bind to cellulose-based materials, where strong fluorescence similar to AIE was turned on.