Ln-MOF Pseudo-Merohedral Twinned Crystalline Family as Solvent-Free Heterogeneous Catalysts

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• 作者：Richard F. D鈥橵ries ; Natalia Snejko ; Marta Iglesias ; Enrique Guti茅rrez-Puebla ; M. Angeles Monge
• 刊名：Crystal Growth & Design
• 出版年：2014
• 出版时间：May 7, 2014
• 年：2014
• 卷：14
• 期：5
• 页码：2516-2521
• 全文大小：359K
• 年卷期：v.14,no.5(May 7, 2014)
• ISSN：1528-7505

文摘

Hydrothermally 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)]路H₂O (Ln = Sm, Eu, Gd, Tb, Dy, Ho, Er, and Yb), present pseudomerohedral twinned crystals. The polymeric network consists of uninodal 2D net (4³路6³) layers perpendicular to the [010] direction. 蟺鈥撓€ 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.