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RESEARCH PRODUCT
Inorganic Mercury Sequestration by a Poly(ethylene imine) Dendrimer in Aqueous Solution
Matteo SavastanoAntonio BianchiElena Salvador Serranosubject
mercuryImineInorganic chemistryPotentiometric titrationPharmaceutical Sciencechemistry.chemical_elementProtonationmercury dendrimers sequestration water contamination environmentArticleAnalytical Chemistrydendrimerspoly(ethylene imine)Metallcsh:QD241-441chemistry.chemical_compoundAmmoniacontaminationlcsh:Organic chemistryDendrimerDrug DiscoveryremediationPhysical and Theoretical ChemistryAqueous solutionMolecular StructureOrganic ChemistryMercury (element)chemistryChemistry (miscellaneous)visual_artPotentiometryvisual_art.visual_art_mediumMolecular MedicineEnvironmental PollutantsIminesPolyethylenesdescription
The interaction of the G-2 poly(ethylene imine) dendrimer L, derived from ammonia as initiating core, with Hg(II) and HgCl4 2− was studied in aqueous solution by means of potentiometric (pH-metric) measurements. Speciation of these complex systems showed that L is able to form a wide variety of complexes including 1:1, 2:1, 3:1 and 3:2 metal-to-ligand species, of different protonation states, as well as the anion complexes ((H7L)HgCl4) 5+ and ((H8L)HgCl4) 6+ . The stability of the metal complexes is very high, making L an excellent sequestering agent for Hg(II), over a large pH range, and a promising ligand for the preparation of functionalized activated carbons to be employed in the remediation and the prevention of environmental problems.
year | journal | country | edition | language |
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2015-02-26 | Molecules |