Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

Full text
Author(s):
Arroyos, Guilherme [1] ; Frem, Regina C. G. [1]
Total Authors: 2
Affiliation:
[1] Sao Paulo State Univ, Inst Chem, UNESP, BR-14800060 Araraquara, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: CrystEngComm; v. 22, n. 14, p. 2439-2446, APR 14 2020.
Web of Science Citations: 0
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, H-1 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. (AU)

FAPESP's process: 18/09898-3 - Infinite coordination polymers based on rare-earth ions and pyrazole-3,5-dicarboxylate: structural, morphological and luminescent properties
Grantee:Guilherme Arroyos
Support Opportunities: Scholarships in Brazil - Doctorate