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Inicio » Actividades I+D > Publicaciones 2003 > Three yttrium crotonate complexes with d...
artículo con referato
"Three yttrium crotonate complexes with diimines"
A.M. Atria, J.C. Muñoz, A. Soto, M.T. Garland and R.F. Baggio
Acta Cryst. C 59(10) (2003) m416-m420
The synthesis and crystal structures of three new yttrium crotonate (crot) compounds, associated with three different nitrogenous bases, namely 1,10-phenanthroline (phen), 4-methyl-1,10-phenanthroline (mphen) and 2,2′-bipyridylamine (bpa), are presented. All three compounds organize as centrosymmetric dimers, to give tetra-μ-crotonato-bis[crotonato(1,10-phenanthroline)yttrium(III)] dihydrate, [Y2(C4H5O2)6(C12H8N2)2]·2H2O or [Y(crot)3(phen)]2·2H2O, (I), tetra-μ-crotonato-bis[crotonato(4-methyl-1,10-phenanthroline)yttrium(III)] dihydrate, [Y2(C4H5O2)6(C13H10N2)2]·2H2O or [Y(crot)3(mphen)]2·2H2O, (II), and tetra-μ-crotonato-bis[diaqua(crotonato)yttrium(III)] 2,2′-bipyridylamine tetrasolvate, [Y2(C4H5O2)6(H2O)4]·4C10H9N3 or [Y(crot)3(aq)2]2·4(bpa), (III). Complexes (I) and (II) are isomorphous, with the bases acting as chelating ligands. In complex (III), the coordination sphere is built up of carboxylate and aqua ligands, with the non-coordinated diimine acting as included solvent.
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