Macrocyclic complexes with lanthanoid salts part 38. Synthesis and luminescence study of homo- and hetero-binuclear complexes of lanthanides with a new cyclic compartmental Schiff base (Articolo in rivista)

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  • Macrocyclic complexes with lanthanoid salts part 38. Synthesis and luminescence study of homo- and hetero-binuclear complexes of lanthanides with a new cyclic compartmental Schiff base (Articolo in rivista) (literal)
Anno
  • 1990-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/DT9900000647 (literal)
Alternative label
  • Guerriero P.; Vigato P.A.; Bünzli J.-C.G.; Moret E.b (1990)
    Macrocyclic complexes with lanthanoid salts part 38. Synthesis and luminescence study of homo- and hetero-binuclear complexes of lanthanides with a new cyclic compartmental Schiff base
    in Journal of the Chemical Society. Dalton transactions (Print); Royal Society of Chemistry, London (Italia)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Guerriero P.; Vigato P.A.; Bünzli J.-C.G.; Moret E.b (literal)
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  • 647 (literal)
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  • 655 (literal)
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  • http://pubs.rsc.org/en/Content/ArticleLanding/1990/DT/dt9900000647 (literal)
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  • 2 (literal)
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  • 9 (literal)
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  • Scopu (literal)
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  • 1,2 : Istituto di Chimica e Tecnologia dei Radioelementi C.N.R., Area delta Ricerca, Corso Stati Uniti 4, I-35020 Padova, Italy 3,4 : Institut de Chimie Minérale et Analytique, Place du Château 3, CH-1005 Lausanne, Switzerland (literal)
Titolo
  • Macrocyclic complexes with lanthanoid salts part 38. Synthesis and luminescence study of homo- and hetero-binuclear complexes of lanthanides with a new cyclic compartmental Schiff base (literal)
Abstract
  • Homo- and hetero-binuclear lanthanide(III) complexes with the macrocyclic ligand H2L1 derived from the condensation of 4-chloro-2,6-diformylphenol and the polyamine NH2(CH 2)2O(CH2)2O(CH2) 2NH2 have been synthesized: [Ln2L 1(NO3)4]·nH2O (Ln = La, Pr, Sm, Eu, Gd, Tb, or Dy; n = 1 or 2) and [LnxLn? 2 - xL1(NO3)4]·nH 2O (Ln,Ln? = La,Sm; La,Gd; La,Dy; La,Eu; Dy,Gd; Dy,Eu; Gd,Eu; Gd,Tb; Eu,Tb; or La,Tb; n = 1 or 2). Their possible structure and the interaction between the metal ions are discussed on the basis of spectroscopic, mass spectrometric, and magnetic data together with scanning electron microprobe analyses. Electron microscopy with X-ray fluorescence analysis as well as magnetic susceptibility measurements suggest that the complexes containing two different lanthanide ions may be truly heterobinuclear, with the two metal centres lying at a long distance from each other and not connected by any bridging heteroatoms. Laser-excited luminescence spectra and lifetimes also point to the presence of heterobinuclear species. The yield of the Tb III to EuIII energy transfer was quantified and the intermetallic distance evaluated. (literal)
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