“Push–pull” 1,8-naphthalic anhydride with multiple triphenylamine groups as electron donor
作者： Limin Wang , Yan Shi , Yingyuan Zhao , Heyuan Liu , Xiyou Li
DOI: 10.1016/J.MOLSTRUC.2013.10.004
关键词:
摘要: Abstract In this paper, the “push–pull” molecules consisting of different number triphenylamino groups and 1,8-naphthalic anhydride ring were designed synthesized. The UV–vis absorption emission spectra these compounds recorded. Along with increase on electron donating groups, both bands show significant red shift. More importantly, fluorescence quantum yields drop sharply along groups. molecular structure, frontier orbital energies energy gaps between highest occupied (HOMO) lowest un-occupied (LUMO) calculated DFT method. results indicate that connection more in molecule caused a change for first excited state from an intramolecular charge transfer (ICT) to (ET). This has led quenching.
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