{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,18]],"date-time":"2025-10-18T10:15:28Z","timestamp":1760782528319},"reference-count":47,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2003,9,22]],"date-time":"2003-09-22T00:00:00Z","timestamp":1064188800000},"content-version":"vor","delay-in-days":21,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Helvetica Chimica Acta"],"published-print":{"date-parts":[[2003,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The interaction in aqueous solution of adenosine 5\u2032\u2010triphosphate (ATP) with a series of open\u2010chain polyamines linked at one or both ends to anthrylmethyl or naphthylmethyl fragments was followed by potentiometric titration, <jats:sup>1<\/jats:sup>H\u2010, <jats:sup>13<\/jats:sup>C\u2010, and <jats:sup>31<\/jats:sup>P\u2010NMR spectroscopy, and by steady\u2010state fluorescence measurements. The results revealed greater stabilities for the compounds containing one anthracene moiety than for those with one naphthalene moiety, the stabilities of the compounds with both ends <jats:italic>N<\/jats:italic>\u2010substituted with naphthylmethyl groups being close to those containing just one anthrylmethyl unit. The <jats:sup>1<\/jats:sup>H\u2010NMR spectra showed that in all systems, there is involvement of <jats:italic>\u03c0<\/jats:italic>\u2010<jats:italic>\u03c0<\/jats:italic> stacking interactions in the stabilization of the adduct species. The competitive effect of the anions afforded by the supporting electrolyte was checked in some of the studied systems working at two different ionic strenghts (0.15<jats:sc>M<\/jats:sc> and 1.0<jats:sc>M<\/jats:sc> NaCl). The joint analysis of the spectrofluorimetric titrations and pH\u2010metric species\u2010distribution curves showed that for all the ATP\uf8ffreceptor systems, a quenching of the fluorescence occurred upon protonation of the adenine N(1)atom. Steady\u2010state fluorescence and time\u2010correlated single\u2010photon\u2010counting analysis of a system made up of ATP and a bis\u2010chromophoric polyamine receptor containing anthracene and naphthalene fluorophores established that the energy\u2010transfer process between the naphthalene and anthracene moieties is still operative despite the presence of ATP.<\/jats:p>","DOI":"10.1002\/hlca.200390253","type":"journal-article","created":{"date-parts":[[2003,9,23]],"date-time":"2003-09-23T22:10:34Z","timestamp":1064355034000},"page":"3118-3135","source":"Crossref","is-referenced-by-count":51,"title":["Potentiometric, NMR, and Fluorescence\u2010Emission Studies on the Binding of Adenosine 5\u2032\u2010Triphosphate (ATP) by Open\u2010Chain Polyamine Receptors Containing Naphthylmethyl and\/or Anthrylmethyl Groups"],"prefix":"10.1002","volume":"86","author":[{"given":"M.\u2005Teresa","family":"Albelda","sequence":"first","affiliation":[]},{"given":"Juan","family":"Aguilar","sequence":"additional","affiliation":[]},{"given":"Sergio","family":"Alves","sequence":"additional","affiliation":[]},{"given":"Ricardo","family":"Aucejo","sequence":"additional","affiliation":[]},{"given":"Pilar","family":"D\u00edaz","sequence":"additional","affiliation":[]},{"given":"Carlos","family":"Lodeiro","sequence":"additional","affiliation":[]},{"given":"Joao\u2005C.","family":"Lima","sequence":"additional","affiliation":[]},{"given":"Enrique","family":"Garc\u00eda\u2010Espa\u00f1a","sequence":"additional","affiliation":[]},{"given":"Fernando","family":"Pina","sequence":"additional","affiliation":[]},{"given":"Conxa","family":"Soriano","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2003,9,22]]},"reference":[{"key":"e_1_2_1_1_2","doi-asserted-by":"publisher","DOI":"10.1002\/anie.198800891"},{"key":"e_1_2_1_1_3","unstructured":"J.\u2010M. 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