Hydro-Ionothermal Synthesis of Lanthanide-Organic Frameworks with 1,4-Phenylenebis(methylene)diphosphonate

abstract

A synthetic approach combining hydrothermal and ionothermal (eutectic mixture of choline chloride and malonic acid) procedures is proposed that allowed the isolation of the first lanthanide-organic frameworks with residues of 1,4-phenylenebis(methylene)diphosphonic acid (H(4)pmd), [Ln(Hpmd)(H2O)] (where Ln(3+) = Ce3+ and Pr3+), exhibiting an unprecedented trinodal topology with 3- and 8-connected nodes. The structural details were unveiled front singale-crystal X-ray diffraction and the materials were characterized using standard techniques.

keywords

CRYSTAL-STRUCTURE DETERMINATION; POWDER DIFFRACTION DATA; DEEP-EUTECTIC SOLVENTS; COORDINATION POLYMERS; IONIC LIQUIDS; HYDROTHERMAL SYNTHESIS; IMIDAZOLIUM BROMIDE; MOLECULAR-SIEVES; HYBRID MATERIALS; DIPHOSPHONATES

subject category

Chemistry; Crystallography; Materials Science

authors

Shi, FN; Trindade, T; Rocha, J; Paz, FAA

our authors

acknowledgements

We thank FEDER, POCI (Portugal), and Fundacao para a Ciencia e a Tecnologia (FCT, Portugal) for their financial support (POCI-PPCDT/QUI/58377/2004), for funding toward the purchase of the single-crystal diffractometer, and for postdoctoral research Grant SFRH/BPD/9309/2002 (to F.-N.S.).

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