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Inicio » Actividades I+D > Publicaciones 2007 > Three isomorphous Ln complexes: {[Ln2(bt...
artículo con referato
"Three isomorphous Ln complexes: {[Ln2(bt)6(bno)(H2O)4]·bno}n (bt is but-2-enoate and bno is 4,4′-bipyridyl N,N′-dioxide), with Ln = Nd, Er and Y"
A.M. Atria, M.A. Mora, M.T. Garland and R. Baggio
Acta Cryst. C 63(11) (2007) m490-m493
The polymeric title compounds, namely catena-poly[[[di-μ-but-2-enoato-κ3O:O,O′;κ3O,O′:O′-bis[diaquadibut-2-enoato-κO;κ2O,O′-neodymium(III)]]-μ-4,4′-bipyridyl N,N′-dioxide-κ2O:O′] 4,4′-bipyridyl N,N′-dioxide solvate] and the erbium(III) and yttrium(III) analogues, {[Ln2(C4H5O2)6(C10H8N2O2)(H2O)4]·C10H8N2O2}n (Ln = Nd, Er and Y), form from [Ln2(bt)6(H2O)4] dimers (bt is but-2-enoate) bridged by 4,4′-bipyridyl dioxide (bno) spacers into sets of parallel chains; these linear arrays are interconnected by aqua-mediated hydrogen bonds into broad two-dimensional structures, which in turn interact with each other though the hydrogen-bonded bridged bno solvent units. Both independent bno units in the structures are bisected by symmetry centres.
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