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Metal–Organic Frameworks assembled from tetraphosphonic ligands and lanthanides

2017; Elsevier BV; Volume: 355; Linguagem: Inglês

10.1016/j.ccr.2017.08.001

1873-3840

Ana D. G. Firmino, Flávio Figueira, João P. C. Tomé, Filipe A. Almeida Paz, João Rocha,

Radioactive element chemistry and processing

The number of Metal–Organic Frameworks based on lanthanide (poly)phosphonates reported has been increasing exponentially, mainly because of the many different uses of diphosphonic acid molecules, which are, in general, readily available from commercial sources. Besides their remarkable structural diversity, lanthanide (poly)phosphonate linkers offer advantages over the more widely used carboxylate (or nitrogen-based) molecules for developing new materials, prompted by their remarkable chemical, mechanical and thermal robustness. This work reviews the synthesis routes and the structural types of tetraphosphonic-based Metal–Organic Frameworks bearing lanthanide cations, describing also the plethora of properties and functionalities exhibited by these networks (e.g., photoluminescence, proton conductivity, ion-exchange properties and heterogeneous catalysis). Thermal stability of the reported networks is also addressed in a comparative fashion, assessing the role of additional (ancillary) linkers and the level of hydration.