abstract
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. (C) 2017 Elsevier B.V. All rights reserved.
keywords
CRYSTAL-STRUCTURE; ARBUZOV REACTION; PHOSPHONIC-ACIDS; STABILITY; WATER; MOFS; CHEMISTRY; DESIGN; ESTERS; DIPHOSPHONATES
subject category
Chemistry
authors
Firmino, ADG; Figueira, F; Tome, JPC; Paz, FAA; Rocha, J
our authors
acknowledgements
We wish to thank Fundacao para a Ciencia e a Tecnologia (FCT, Portugal), the European Union, QREN, FEDER through Programa Operacional Factores de Competitividade (COMPETE), CICECO - Aveiro Institute of Materials POCI-01-0145-FEDER-007679 (FCT Ref. UID/CTM/50011/2013), QOPNA (FCT UID/QUI/00062/2013) and CQE (FCT UID/QUI/0100/2013), financed by National Funds through the FCT/MEC and when appropriate co-financed by FEDER under the PT2020 Partnership Agreement.