Aggregation induced emission properties of naphthalimide–coumarin conjugates with various intermolecular linkages
作者:T. Sheshashena Reddy、Jiyoung Hwang、Myung–Seok Choi
DOI:10.1016/j.dyepig.2018.05.076
日期:2018.11
various linkages such as ether, thioether, secondary amine, acetylene and C–C single bond between naphthalimide and coumarin moieties, have been synthesized. NCs 1–5 were fully characterized by 1H NMR, 13C NMR and mass spectroscopy. The effects of linkages in NCs 1–5 on the absorption, fluorescence and aggregation induced emission (AIE) were explored. The electronic absorption spectra of the NCs 1–5 show
萘二甲酰亚胺-香豆素缀合物(NCS 1 - 5),具有各种键例如醚,硫醚,仲胺,乙炔和萘二甲酰亚胺之间和香豆素结构部分C-C单键,已经合成。NC 1 – 5通过1 H NMR,13 C NMR和质谱进行了充分表征。探索了NCs 1-5中的键对吸收,荧光和聚集诱导发射(AIE)的影响。该网络控制系统的电子吸收光谱1 - 5示出红移吸收和荧光相比,4- bromonaphthalimide。仲胺连接的萘二甲酰亚胺-香豆素(NC)3共轭物在吸收和荧光方面显示出明显的红移,而其他NC则显示出中等的红移。在NCs共轭物中,只有硫醚连接的NC 2明显显示出显着的AIE效应,而其他NCs共轭物中则显示出聚集引起的发射猝灭。