Gadolinium(III) and europium(III) l-glutamates: Synthesis and characterization
Two lanthanide(III) complexes with l-glutamate ligands [{Ln2(l-Glu)2(H2O)8} · 4(ClO4) · 2.5H2O]n (Ln = Gd (1), Eu (2)) have been prepared and characterized by single-crystal X-ray diffraction. The compounds are isomorphous with infinite cationic 2D layers stacked together by secondary bonds. The bui...
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| Formato: | Capítulo de libro |
| Lenguaje: | Inglés |
| Publicado: |
2006
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
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| Sumario: | Two lanthanide(III) complexes with l-glutamate ligands [{Ln2(l-Glu)2(H2O)8} · 4(ClO4) · 2.5H2O]n (Ln = Gd (1), Eu (2)) have been prepared and characterized by single-crystal X-ray diffraction. The compounds are isomorphous with infinite cationic 2D layers stacked together by secondary bonds. The building blocks are slightly different non-centrosymmetric dinuclear units placed in alternating layers, the resulting structures thus containing four non-equivalent Ln metal sites. The dinuclear units contain a fourfold bridge, two in the η1:η1:μ2 and two in the η2:η1:μ2 modes, from two α- and two γ-carboxylates of four different l-Glu residues, respectively. © 2006 Elsevier B.V. All rights reserved. |
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| ISSN: | 00201693 |
| DOI: | 10.1016/j.ica.2006.04.046 |