Cover Feature: Copillar[5]arene Appended Pyrene Schiff Base: Photophysics, Aggregation Induced Emission and Picric Acid Recognition (Chem. Asian J. 7/2025)

The cover picture illustrates the synthesis of a new copillar[5]arene-based pyrene Schiff base which shows aggregation-induced emission (AIE) feature. Hydrophobic effect is the driving force in the formation of aggregates. The aggregation behavior is described by several spectroscopic studies. Importantly, the aggregated state in aqueous THF recognizes picric acid selectively by turning of the activated fluorescence. More information can be found in article number e202401586 by Subhasis Ghosh and Kumaresh Ghosh.