Di-Schiff bases with alkyl spacer (ethyl, butyl and hexyl) showed enhanced light emitting properties in solid state, while quenching was observed for di-Schiff bases with hydrazine spacer. Packing of the molecules via non covalent interactions along with the flexible spacer played the role in dictating the emission properties.
带有烷基间隔(乙基、丁基和己基)的Di-Schiff碱在固态中显示出增强的发光性能,而带有肼间隔的Di-Schiff碱观察到猝灭现象。分子的堆积通过非共价相互作用以及柔性间隔在决定发射性能方面发挥作用。