2 documents found, page 1 of 1
From yellow to pink using a fluorimetric and colorimetric pyrene derivative and...
Pinheiro, Daniela; Castro, Catherine S. de; Melo, J. Sérgio Seixas de; Oliveira, Elisabete; Nuñez, Cristina; Fernández-Lodeiro, Adrián1st International Caparica Conference on Chromogenic and Emissive Materials; 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...
Synthesis and evaluation of new thienyl and bithienyl-bis-indolylmethanes as co...
Batista, Rosa Maria Ferreira; Oliveira, M. Elisabete; Nuñez, Cristina; Costa, Susana P. G.; Lodeiro, Carlos; Raposo, M. Manuela M.The synthesis and full characterization of new bis-indolylmethanes containing thienyl and bithienyl moieties are reported. The sensor ability of the compounds in the presence of halide ions (F-, Cl-, Br- and I-), NO3-, ClO4-, SO42-, CN- and OH- ions was investigated in acetonitrile. The experimental results indicate that they could act as selective chromogenic-sensing molecules for the most basic anions F-, CN-...