Phosphate binding by a novel Zn(II) complex featuring a trans-1,2-diaminocyclohexane ligand. Effective anion recognition in water. (Articolo in rivista)

Type
Label
  • Phosphate binding by a novel Zn(II) complex featuring a trans-1,2-diaminocyclohexane ligand. Effective anion recognition in water. (Articolo in rivista) (literal)
Anno
  • 2015-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/c4ob02321h (literal)
Alternative label
  • Francesconi, Oscar; Gentili, Matteo; Bartoli, Francesco; Bencini, Andrea; Conti, Luca; Giorgi, Claudia; Roelens, Stefano (2015)
    Phosphate binding by a novel Zn(II) complex featuring a trans-1,2-diaminocyclohexane ligand. Effective anion recognition in water.
    in Organic & biomolecular chemistry
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Francesconi, Oscar; Gentili, Matteo; Bartoli, Francesco; Bencini, Andrea; Conti, Luca; Giorgi, Claudia; Roelens, Stefano (literal)
Pagina inizio
  • 1860 (literal)
Pagina fine
  • 1868 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 13 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 8 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 6 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dipartimento di Chimica \"Ugo Schiff\", Universita di Firenze, Polo Scientifico e Tecnologico, I-50019 Sesto Fiorentino, Firenze, Italy. andrea.bencini@unifi.it. (literal)
Titolo
  • Phosphate binding by a novel Zn(II) complex featuring a trans-1,2-diaminocyclohexane ligand. Effective anion recognition in water. (literal)
Abstract
  • In this work we have investigated the binding properties of a new synthetic receptor for phosphate anions that combines metal ion coordination with electrostatic and H-bonding interactions. The described receptor is obtained by assembling an iminodiacetic (IDA) fragment, as a Zn(ii) binding site, with a polyamine macrocyclic portion containing two trans-1,2-diaminocyclohexane (DAC) units and a pyrrole ring, as a cationic binding site, into an adaptive structure appropriately spanning the length of di- and tridentate phosphates. Potentiometric measurements together with (1)H and (31)P NMR investigation showed that, in a wide pH range including values of physiological interest, the Zn(ii) complex of the receptor binds di- and triphosphates, such as ADP, ATP, pyrophosphate (PP) and triphosphate (TP), far better than monophosphate (MP), and that TP is poorly bound by methyliminodiacetate (MIDA) as a model for the Zn(ii) binding site. Besides the excellent selectivity over other phosphates, the affinity for TP is the largest reported to date for Zn(ii) complexes in water. (literal)
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