<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Pedras, B.</style></author><author><style face="normal" font="default" size="100%">Santos, H. M.</style></author><author><style face="normal" font="default" size="100%">Fernandes, L.</style></author><author><style face="normal" font="default" size="100%">Covelo, B.</style></author><author><style face="normal" font="default" size="100%">Tamayo, A.</style></author><author><style face="normal" font="default" size="100%">Bertolo, E.</style></author><author><style face="normal" font="default" size="100%">Capelo, J. L.</style></author><author><style face="normal" font="default" size="100%">Aviles, T.</style></author><author><style face="normal" font="default" size="100%">Lodeiro, C.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Sensing metal ions with two new azomethine-thiophene pincer ligands (NSN): Fluorescence and MALDI-TOF-MS applications</style></title><secondary-title><style face="normal" font="default" size="100%">Inorganic Chemistry Communications</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Inorg Chem Commun</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">complexes</style></keyword><keyword><style  face="normal" font="default" size="100%">fluorescent chemosensors</style></keyword><keyword><style  face="normal" font="default" size="100%">intramolecular excimer formation</style></keyword><keyword><style  face="normal" font="default" size="100%">macrobicycles</style></keyword><keyword><style  face="normal" font="default" size="100%">maldi-tof-ms</style></keyword><keyword><style  face="normal" font="default" size="100%">mass-spectrometry</style></keyword><keyword><style  face="normal" font="default" size="100%">molecular-structure</style></keyword><keyword><style  face="normal" font="default" size="100%">nickel(ii)</style></keyword><keyword><style  face="normal" font="default" size="100%">nucleic-acids</style></keyword><keyword><style  face="normal" font="default" size="100%">palladium(ii)</style></keyword><keyword><style  face="normal" font="default" size="100%">performance</style></keyword><keyword><style  face="normal" font="default" size="100%">receptors</style></keyword><keyword><style  face="normal" font="default" size="100%">schiff-base macrocycles</style></keyword><keyword><style  face="normal" font="default" size="100%">thin-film transistors</style></keyword><keyword><style  face="normal" font="default" size="100%">thiophene</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2007</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Aug</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">&lt;Go to ISI&gt;://000248769700020</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">8</style></number><volume><style face="normal" font="default" size="100%">10</style></volume><pages><style face="normal" font="default" size="100%">925-929</style></pages><isbn><style face="normal" font="default" size="100%">1387-7003</style></isbn><language><style face="normal" font="default" size="100%">English</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The two new pincer azomethine-thiophene ligands (N,NE',N,NE')-N,N'-(thiophene-2,5-diylbis(methan-1-yl-1-ylidene))bis(naphathalen-2-ylmethanamine) (L1) and (E)-(4,6-dihydropyren-1-yl)-N-((5-((E)-(pyren-1-ylmethylimino)ethyl)thiophen-2-yl)methylene)methanamine (L2), their absorption, fluorescence and MALDI-TOF-MS spectroscopic studies are described. The two systems synthesised combine the emissive probes pyrene and naphthyl with the good chelating properties of a tridentate SN2 donor-set from a thiophene Schiff-base ligand. Both ligands gave analytically pure solid complexes with Ni(II) and Pd(II) salts. The bichromophoric pyrene derivative L2 presents two emission bands in solution, one corresponding to the monomer species and a red-shifted band attributable to the intramolecular excimer. Ni(II) and Pd(II) complexation affects the conformation in solution, increasing the monomer emission at the expense of the excimer band; this effect could be explored in metal ion sensing. System L1 behaves as a non emissive probe. In situ complexation reactions followed by MALDI-TOF-MS spectrometry without matrix support have also been performed; these experiments show that L1 could be a potential chemosensor for Ni(II) and Pd(11). (c) 2007 Elsevier B.V. All rights reserved.&lt;/p&gt;
</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000248769700020</style></accession-num><notes><style face="normal" font="default" size="100%">&lt;p&gt;200NITimes Cited:9Cited References Count:42&lt;/p&gt;
</style></notes><auth-address><style face="normal" font="default" size="100%">Lodeiro, CUniv Nova Lisboa, Fac Ciencias &amp; Tecnol, REQUIMTE, Dept Quim, P-2829516 Monte De Caparica, PortugalUniv Nova Lisboa, Fac Ciencias &amp; Tecnol, REQUIMTE, Dept Quim, P-2829516 Monte De Caparica, PortugalUniv Nova Lisboa, Fac Ciencias &amp; Tecnol, REQUIMTE, Dept Quim, P-2829516 Monte De Caparica, PortugalCanterbury Christ Church Univ, Dept Geog &amp; Life Sci, Canterbury CT1 1QU, Kent, England</style></auth-address></record></records></xml>