TY - JOUR
T1 - Metal ion interaction with a novel anthracene pendant-armed fluorescent molecular probe. Synthesis, characterization, and fluorescence studies
AU - Oliveira, Elisabete
AU - Vicente, Manuel
AU - Valencia, Laura
AU - Macías, Alejandro
AU - Bértolo, Emilia
AU - Bastida, Rufina
AU - Lodeiro, Carlos
N1 - We are indebted to Fundação para a Ciência e a Tecnologia/FEDER (Portugal/EU) (Project POCI/QUI/55519/2004 FCT-FEDER), Xunta de Galicia (Spain) (Project PGIDT04PXIB2091PR), and Canterbury Christ Church University Research Fund for financial support. E.B. and C.L. also thank bilateral program “Acçoes integradas Luso-Británicas 2006” for the bilateral agreement number B-16/06.
PY - 2007/5/30
Y1 - 2007/5/30
N2 - A new scorpionate system (L) containing an emissive anthracene pendant arm, derived of O1,O7-bis(2-formylphenyl)-1,4,7-trioxaheptane and tren, has been synthesized and characterized. The sensing capability of L towards a range of metal ions has been studied. Protonation and complexation studies, using UV-Vis and fluorescent emission measurements, have been performed with alkaline and alkaline earth metal ions (M = Na(I), K(I), Li(I), Ca(II), Mg(II)), as well as transition and post-transition metal ions (M = Cr(III), Cu(II) and Zn(II), Cd(II), Hg(II) and Al(III)). An increase in the fluorescence emission (CHEF effect) was observed in methanol and in methanol/water mixtures in the presence of Cd(II) (5.0-fold), Zn(II) (4.5-fold), Cr(III) (2.0-fold) and Al(III) (1.8-fold); these results suggest a notable sensing ability of this new N3O4 ligand for these metals; these experiments were also performed in the presence of large amounts of alkaline and alkaline earth metal ions.
AB - A new scorpionate system (L) containing an emissive anthracene pendant arm, derived of O1,O7-bis(2-formylphenyl)-1,4,7-trioxaheptane and tren, has been synthesized and characterized. The sensing capability of L towards a range of metal ions has been studied. Protonation and complexation studies, using UV-Vis and fluorescent emission measurements, have been performed with alkaline and alkaline earth metal ions (M = Na(I), K(I), Li(I), Ca(II), Mg(II)), as well as transition and post-transition metal ions (M = Cr(III), Cu(II) and Zn(II), Cd(II), Hg(II) and Al(III)). An increase in the fluorescence emission (CHEF effect) was observed in methanol and in methanol/water mixtures in the presence of Cd(II) (5.0-fold), Zn(II) (4.5-fold), Cr(III) (2.0-fold) and Al(III) (1.8-fold); these results suggest a notable sensing ability of this new N3O4 ligand for these metals; these experiments were also performed in the presence of large amounts of alkaline and alkaline earth metal ions.
KW - Anthracene
KW - Fluorescence probes
KW - Macrocycles
KW - Metal complexes
UR - http://www.scopus.com/inward/record.url?scp=34247542441&partnerID=8YFLogxK
U2 - 10.1016/j.ica.2007.01.024
DO - 10.1016/j.ica.2007.01.024
M3 - Article
AN - SCOPUS:34247542441
SN - 0020-1693
VL - 360
SP - 2734
EP - 2743
JO - Inorganica Chimica Acta
JF - Inorganica Chimica Acta
IS - 8
ER -