Synthesis of 1,4-Bis[2,2-bis(4-alkoxyphenyl)vinyl]benzenes and Side Chain Modulation of Their Solid-State Emission

A series of 1,4-bis[2,2-bis(4-alkoxyphenyl)vinyl]benzene molecules with aggregation-induced emission (AIE) activity were synthesized. The conformations and packing arrangements of these molecules in the solid state can be adjusted by changing the side chains, which subsequently modulates their solid-state emission. The fluorescence quantum yield of 1e with the n-C6H13 side chain in the solid state could reach up to 60.3% in the solid state.

本研究合成了一系列具有聚集诱导发光（aggregation-induced emission, AIE）活性的1,4-双[2,2-双(4-烷氧基苯基)乙烯基]苯类分子。通过改变分子侧链，可调控此类化合物在固态下的构象与堆积方式，进而调节其固态发光行为。其中侧链为正己基（n-C6H13）的1e分子，其固态荧光量子产率最高可达60.3%。