Ei
ght 2D and 3D metal-or
ganic framework (MOF) rare earth naphthalenedisulfonates have been obtained. Thedifferent
geometry of the naphthalenedisulfonic acids used as connectors [(1,5-NDS) and (2,6-NDS)]
gives rise tothe three new structure types. In Ln(OH)(1,5-NDS)H
2O, LnPF-1 (lanthanide polymeric framework; Ln = La, Nd, Pr,Sm and Eu), the lanthanide ion is octacoordinated. Its 3D structure is formed by (Ln
2O
14)-S-(Ln
2O
14) infinitechains, connected throu
gh complete NDS connectors. LnPF-2 (Ln = Nd), with the same empirical formula as theformer, and the lanthanide in octa- and nonacoordination, owns an arran
gement of sulfonate brid
ges and neodymiumpolyhedra that
gives rise to a 2D structure. [Ln
5(2,6-NDS)
3(OH)
9(H
2O)
4](H
2O)
2, LnPF-3 (Ln = Nd, Eu), demonstratesthat it is possible to obtain a 3D structure with (2,6-NDS), when a
greater Ln/connector ratio is employed. It isworth pointin
g out the existence, in this latter family of compounds, of a
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ges/entities/m
gr.
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5-OH
group, whose hydro
gen atom isvery close to one-sixth Ln atom (distance Ln···H = 2.09 &Arin
g;). The materials, with hi
gh thermal stability, act as activeand selective bifunctional hetero
geneous catalysts in oxidation of linalool yieldin
g cyclic hydroxy ethers. The absenceof any 3D Nd-Nd ma
gnetic interaction is explained due to the inner nature of 4f orbitals of Nd
3+, which do notfavor the ma
gnetic exchan
ge. The influence of the polymeric frame matrix results in a better photoluminescenceefficiency for NdPF-1.