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TitleHeterocyclic imidazo-anthraquinone as an optical sensor: synthesis, characterization and evaluation of the chemosensory ability
Author(s)Ferreira, Rosa Cristina Moutinho
Costa, Susana P. G.
Raposo, M. Manuela M.
KeywordsOptical chemosensor
Ion sensing
Colorimetric sensor
“naked - eye” detection
Aqueous media
Issue dateNov-2017
CitationProceedings of the 21st Int. Electron. Conf. Synth. Org. Chem., 1–30 November 2017; Sciforum Electronic Conference Series, Vol. 21, 2017; doi:10.3390/ecsoc-21-04796.
Abstract(s)A novel imidazo-anthraquinone derivative 3 was synthesized in moderate yield. The photophysical properties of the new compound were studied by UV-vis and fluorescence spectroscopy in ACN. The evaluation of the new compound as a colorimetric chemosensor was carried out by performing spectrophotometric titrations in ACN and ACN/H2O in the presence of relevant organic and inorganic anions and transition metal cations. Imidazo-anthraquinone 3 exhibited great selectivity for the cyanide anion over other anions in ACN/H2O (95:5) solution showing a distinct color change from yellow to pink.
TypeConference paper
Publisher version
AccessEmbargoed access (2 Years)
Appears in Collections:CDQuim - Comunicações e Proceedings

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