{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T10:24:30Z","timestamp":1767867870665,"version":"3.49.0"},"reference-count":49,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2021,1,20]],"date-time":"2021-01-20T00:00:00Z","timestamp":1611100800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100015694","name":"Fondazione Cassa di Risparmio di Firenze","doi-asserted-by":"publisher","award":["bandi Ricerca e Innovazione 2019 e 2020"],"award-info":[{"award-number":["bandi Ricerca e Innovazione 2019 e 2020"]}],"id":[{"id":"10.13039\/501100015694","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003407","name":"Ministero dell\u2019Istruzione, dell\u2019Universit\u00e0 e della Ricerca","doi-asserted-by":"publisher","award":["PRIN 2017 - 2017EKCS3"],"award-info":[{"award-number":["PRIN 2017 - 2017EKCS3"]}],"id":[{"id":"10.13039\/501100003407","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>The synthesis of a new RuII complex, in which the metal is coordinated by two 1,10-phenanthroline ligands and a 2,2\u2032-bipyridyl unit linked, via methylene bridges in its 4 and 4\u2032 positions, to two 1,4,7,10-tetraazacyclododecane (cyclen) macrocycles ([Ru(phen)2L]2+) is reported. Protonation and ZnII binding by [Ru(phen)2L]2+ have been analyzed by potentiometric titration, evidencing the formation of mixed hetero-binuclear and hetero-trinuclear ZnII\/RuII complexes. These complexes were tested as bis-phenol A (BPA) binders. Only the dizinc complex with [Ru(phen)2L]2+ is able to bind BPA in aqueous solution, affording a remarkably stable {Zn2[Ru(phen)2L]BPA(H\u22122)}4+ adduct at neutral pH, in which BPA is bound in its doubly deprotonated form to the two ZnII ions. BPA binding was found to quench the luminescence emission of the RuII(phen)2bipy core. Although the quenching effect is modest, this study demonstrates that appropriately designed dizinc complexes can be used for binding and optical sensing of BPA in water.<\/jats:p>","DOI":"10.3390\/molecules26030527","type":"journal-article","created":{"date-parts":[[2021,1,20]],"date-time":"2021-01-20T12:16:18Z","timestamp":1611144978000},"page":"527","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Exploring the Ability of Luminescent Metal Assemblies to Bind and Sense Anionic or Ionizable Analytes A Ru(phen)2bipy-Based Dizinc Complex for Bisphenol A (BPA) Recognition"],"prefix":"10.3390","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0402-1293","authenticated-orcid":false,"given":"Luca","family":"Conti","sequence":"first","affiliation":[{"name":"Department of Chemistry \u201cUgo Schiff\u201d, Universit\u00e0 degli Studi di Firenze, via della Lastruccia 3, 50019 Sesto Fiorentino, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liviana","family":"Mummolo","sequence":"additional","affiliation":[{"name":"Department of Chemistry \u201cGiacomo Ciamician\u201d, Universit\u00e0 degli Studi di Bologna, via Selmi 2, 40126 Bologna, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5933-7527","authenticated-orcid":false,"given":"Giammarco Maria","family":"Romano","sequence":"additional","affiliation":[{"name":"Department of Chemistry \u201cUgo Schiff\u201d, Universit\u00e0 degli Studi di Firenze, via della Lastruccia 3, 50019 Sesto Fiorentino, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1240-2405","authenticated-orcid":false,"given":"Claudia","family":"Giorgi","sequence":"additional","affiliation":[{"name":"Department of Chemistry \u201cUgo Schiff\u201d, Universit\u00e0 degli Studi di Firenze, via della Lastruccia 3, 50019 Sesto Fiorentino, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gina Elena","family":"Giacomazzo","sequence":"additional","affiliation":[{"name":"Department of Chemistry \u201cUgo Schiff\u201d, Universit\u00e0 degli Studi di Firenze, via della Lastruccia 3, 50019 Sesto Fiorentino, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luca","family":"Prodi","sequence":"additional","affiliation":[{"name":"Department of Chemistry \u201cGiacomo Ciamician\u201d, Universit\u00e0 degli Studi di Bologna, via Selmi 2, 40126 Bologna, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3957-8451","authenticated-orcid":false,"given":"Andrea","family":"Bencini","sequence":"additional","affiliation":[{"name":"Department of Chemistry \u201cUgo Schiff\u201d, Universit\u00e0 degli Studi di Firenze, via della Lastruccia 3, 50019 Sesto Fiorentino, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,1,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"738","DOI":"10.1016\/j.etap.2014.02.003","article-title":"Sources, toxicity and biotransformation","volume":"37","author":"Bisphenol","year":"2014","journal-title":"Environ. 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