cg5002336_si_003.pdf (639.88 kB)
Ln-MOF Pseudo-Merohedral Twinned Crystalline Family as Solvent-Free Heterogeneous Catalysts
journal contribution
posted on 2014-05-07, 00:00 authored by Richard
F. D’Vries, Natalia Snejko, Marta Iglesias, Enrique Gutiérrez-Puebla, M. Angeles MongeHydrothermally promoted assembly
of the multifunctional 3,5-disulfobenzoic
acid (3,5-DSB) ligand with the lanthanide series and the 1,10-phenanthroline
as a secondary ligand gives rise to the formation of 2D coordination
polymers. The isostructural RPF-20-Ln series, with formula [Ln(3,5-DSB)(Phen)(H2O)]·H2O (Ln = Sm, Eu, Gd, Tb, Dy, Ho, Er, and Yb), present pseudomerohedral twinned crystals. The polymeric
network consists of uninodal 2D net (43·63) layers perpendicular to the [010] direction. π–π
Stacking interactions between them gives rise to the tridimensional
supramolecular framework. The new compounds were tested as catalysts
in acid Lewis reactions. A comparative study with other lanthanide
MOFs inside the systems Ln/DSB and Ln/DSB/Phen reveals some structural
facts that could improve the catalytic behavior of this kind of material.