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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
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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