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
| Autor: | Liviana Mummolo, Andrea Bencini, G. Romano, Luca Conti, Claudia Giorgi, Luca Prodi, Gina Elena Giacomazzo |
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| Přispěvatelé: | Conti L., Mummolo L., Romano G.M., Giorgi C., Giacomazzo G.E., Prodi L., Bencini A. |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
bisphenol A
Potentiometric titration Supramolecular chemistry Pharmaceutical Science chemistry.chemical_element Protonation ruthenium complexe 02 engineering and technology 010402 general chemistry 01 natural sciences supramolecular chemistry Analytical Chemistry Adduct anion binding lcsh:QD241-441 luminescent chemical sensors chemistry.chemical_compound Deprotonation lcsh:Organic chemistry Cyclen Drug Discovery Polymer chemistry ruthenium complexes Physical and Theoretical Chemistry Anion binding Bisphenol A Luminescent chemical sensors Mixed metal complexes Ruthenium complexes Zinc complexes 2 2'-Dipyridyl Anions Benzhydryl Compounds Ligands Luminescence Metals Molecular Structure Phenols Ruthenium Water Organic Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry Chemistry (miscellaneous) mixed metal complexe Molecular Medicine mixed metal complexes luminescent chemical sensor 0210 nano-technology zinc complexes |
| Zdroj: | Molecules Volume 26 Issue 3 Molecules, Vol 26, Iss 527, p 527 (2021) |
| ISSN: | 1420-3049 |
| DOI: | 10.3390/molecules26030527 |
| Popis: | The synthesis of a new RuII complex, in which the metal is coordinated by two 1,10-phenanthroline ligands and a 2,2&prime bipyridyl unit linked, via methylene bridges in its 4 and 4&prime 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&minus 2)}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. |
| Databáze: | OpenAIRE |
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