Synthesis and solid-state fluorescence properties of pentacyclic 7-substituted-indeno[1',2':4,5] pyrido [2,1-a] isoindol-5-ones - Université de Lorraine Access content directly
Journal Articles RSC Advances Year : 2015

Synthesis and solid-state fluorescence properties of pentacyclic 7-substituted-indeno[1',2':4,5] pyrido [2,1-a] isoindol-5-ones

Abstract

With the aim to design fluorescent solids, a series of indeno[10,20: 4,5] pyrido[2,1-a] isoindol-5-ones with various substituents was prepared. In these pi-extended pentacyclic derivatives, the presence of a methyl group in the 7-position was found to have a critical influence on the fluorescence properties in the solid state. Crystal packing of the non-substituted derivatives shows strong p-p interactions causing quenching of the fluorescence. In contrast, by introducing a methyl substituent in the 7-position we obtained compounds with fluorescence quantum yield up to 32% in the solid state.
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hal-01495964 , version 1 (27-03-2017)

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Zein El Abidine Chamas, E. Marchi, B. Presson, Emmanuel Aubert, Yves Fort, et al.. Synthesis and solid-state fluorescence properties of pentacyclic 7-substituted-indeno[1',2':4,5] pyrido [2,1-a] isoindol-5-ones. RSC Advances, 2015, 5 (4), pp.2715-2723. ⟨10.1039/c4ra12155d⟩. ⟨hal-01495964⟩
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