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https://hdl.handle.net/10316/27907
Title: | From yellow to pink using a fluorimetric and colorimetric pyrene derivative and mercury (II) ions | Authors: | Pinheiro, Daniela Castro, Catherine S. de Melo, J. Sérgio Seixas de Oliveira, Elisabete Nuñez, Cristina Fernández-Lodeiro, Adrián Capelo, José Luis Lodeiro, Carlos |
Keywords: | Colorimetric; Fluorescence; Pyrene; Schiff-base; Mercury (II); Molecular probes | Issue Date: | Nov-2014 | Publisher: | Elsevier | Citation: | PINHEIRO, Daniela [et. al] - From yellow to pink using a fluorimetric and colorimetric pyrene derivative and mercury (II) ions. "Dyes and Pigments". ISSN 0143-7208. Vol. 110 (2014) p. 152–158 | Serial title, monograph or event: | Dyes and Pigments | Volume: | 110 | Abstract: | A new simple and multifunctional fluorescent probe based on pyrene linked through an imine bond to a hydroxyphenol unit was synthesised, fully characterized and investigated in solution. Additionally, its behaviour in the presence of several ions (H+, Zn2+, Cd2+, Cu2+, Ni2+, Pb2+, Fe2+, Hg2+ and Al3+) was investigated in CH2Cl2. It was found that the absorption spectra of probe 1 shows no differences for all ions titrations except in the presence of H+ and Hg2+ where a new longer wavelength band becomes visible (inducing a colour change from yellow to orange and pink, respectively). In the emission, a blue-shift and an enhancement of the fluorescence of the probe for all metal ions was observed with the exception of Al3+ where no detectable changes could be observed. The probe was found to be selective for Hg2+ ion at low concentrations (till one equivalent). | Description: | 1st International Caparica Conference on Chromogenic and Emissive Materials | URI: | https://hdl.handle.net/10316/27907 | ISSN: | 0143-7208 | DOI: | 10.1016/j.dyepig.2014.04.012 | Rights: | openAccess |
Appears in Collections: | FCTUC Química - Artigos em Revistas Internacionais |
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From yellow to pink using a fluorimetric and colorimetric pyrene.pdf | 4.85 MB | Adobe PDF | View/Open |
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