Amino-decorated lanthanide(iii) organic extended frameworks for multi-color luminescence and fluorescence sensing

Abstract

Four luminescent lanthanide–organic frameworks (Ln = Eu3+, Tb3+, Sm3+ and Dy3+), isostructural to MOF-LIC-1(Gd), are assembled. Multiple colors are obtained for the system and white-light emission is realized by the single component Sm(iii) framework. Most interestingly, Eu-MOF performs highly selective and sensitive luminescence sensing of Al3+.

Versatile bimetallic lanthanide metal-organic frameworks for tunable emission and efficient fluorescence sensing

“…Therefore, sensing metal ions/VOCs can be realized by tuning the energy transfer efficiency from "antennae" to Ln 3+ ions through host-guest interactions. A few luminescent Ln-MOFs with optical properties that are responsive to the guest molecules have been developed [42][43][44] . However, their luminescent signals only respond to specific molecules.…”

A Ce(III)‐Based Coordination Polymer as Sorbent for the Removal of Pb2+ and Cd2+ Ions from Water

“…The lower wavenumber of ν(C=O) compared to the free carboxylate group, whose absorption band of ν(C=O) appears at about 1700 cm −1 , is owing to the coordination of these groups to the Ce(III) centres. The band at 1383 cm −1 is related to stretching vibration of C−N …”

3D Microporous Lanthanide–Organic Frameworks Constructed from Left‐ and Right‐Handed Helical Chains: Synthesis, Crystal Structure, and Tunable Photo­luminescence

“…The free ligands show emissions at 400 nm for 2,6-NDS and 460 nm for IP ( Figure S3 in the Supporting Information), respectively. [41] It is worth noting that the relative intensity of the ligand blue emission and the Sm III emission depend on the excitation wavelengths, which makes it possible to generate white-light emission by adjusting the excitation wavelengths. Among them, the most intense emission at 597 nm belongs to the hypersensitive 4 G 5/2 Ǟ 6 H 7/2 transition.…”