Jump to main content
Jump to site search


Highly chemical and thermally stable lanthanide coordination polymers for luminescent probe and white light emitting diodes

Abstract

A series of isomorphic lanthanide coordination polymers with 2,6-dimethylpyridine-3,5-dicarboxylic acid (H2mpda), formulated as [Ln(Hmpda)3(H2mpda)] [Ln = Tb (1), Eu (2), Gd (3) and Ln = mixed lanthanide (4)] have been synthesized and structurally characterized. Single-crystal X-ray diffraction reveals that they are isomorphic and each displays a 1D chain-based structure, which can be expanded into a 3D-supramolecular architecture by the hydrogen bond interactions. In addition, they are thermally stable up to 350°C and unusually chemical stability in a wide pH range of 2-13, which were confirmed by the variable temperature XRD and pH dependent XRD. Meanwhile, the luminescent properties of compounds 1-4 are investigated, of these compound 1 acts as the luminescent probe for the sensing of temperature and pH, and compound 4 shows the white light emission. Moreover, compounds 1, 2 and 4 were encapsulated into the LED devices, compound 4 exhibited the warm white light emission with excellent color rendering index (CRI) and correlated color temperature (CCT).

Back to tab navigation

Supplementary files

Article information


Submitted
14 Feb 2020
Accepted
06 Mar 2020
First published
06 Mar 2020

CrystEngComm, 2020, Accepted Manuscript
Article type
Paper

Highly chemical and thermally stable lanthanide coordination polymers for luminescent probe and white light emitting diodes

Q. Li, J. Qian, J. Zhou, L. Du and Q. Zhao, CrystEngComm, 2020, Accepted Manuscript , DOI: 10.1039/D0CE00228C

Social activity

Search articles by author

Spotlight

Advertisements