β-IminoBODIPY oligomers: facilely accessible π-conjugated luminescent BODIPY arrays†
Abstract
Imine-linked BODIPY oligomers show fluorescence quantum yields of up to 0.93. The azine linker may mediate π-conjugation that extends over six BODIPY units with redshifts up to 125 nm. BODIPYs are immobilized on silica gel through heterogeneous imine-bond formation, being fluorescent and robust.