Solvatochromic and Viscosity‐Dependent Aggregation‐Induced Emission in a Fluorene‐Based Schiff Base
A fluorene‐based Schiff base chromophore 8 incorporating an azomethine (─C═N─) linkage was synthesized, and its photophysical properties were systematically investigated. The chromophore exhibits pronounced positive solvatochromism, with the fluorescence emission maximum shifting from 390 nm in toluene to 428 nm...