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Issue 14, 2020
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Luminescent spherical particles of lanthanide-based infinite coordination polymers with tailorable sizes

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Abstract

Infinite coordination polymers (ICPs) are compounds usually obtained as spherical particles exhibiting amorphous phases in powder X-ray diffraction patterns. In the present work, we report an ICP system based on rare-earth ions with pyrazole-3,5-dicarboxylate as a linker and malonate as a coordination modulator. The compounds exhibit a 2D MOF structure. Three different synthetic routes were used, namely microwave-assisted, solvothermal and gel diffusion. The syntheses yield single-phase spherical particles, which were characterized by PXRD, 1H NMR, CHN, FTIR, TGA, SEM and TEM. Photoluminescence spectroscopy was carried out to study the luminescence properties of the Eu3+ and Tb3+-based samples. With the different-sized particles obtained, we could elucidate the intricate microstructure of the spheres and propose a reason behind the observed amorphous phases in the PXRD patterns.

Graphical abstract: Luminescent spherical particles of lanthanide-based infinite coordination polymers with tailorable sizes

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Supplementary files

Article information


Submitted
31 Jan 2020
Accepted
25 Feb 2020
First published
25 Feb 2020

CrystEngComm, 2020,22, 2439-2446
Article type
Paper

Luminescent spherical particles of lanthanide-based infinite coordination polymers with tailorable sizes

G. Arroyos and R. C. G. Frem, CrystEngComm, 2020, 22, 2439
DOI: 10.1039/D0CE00155D

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