Multifunctional lanthanide MOF luminescent sensor built by structural designing and energy level regulation of a ligand

Abstract

In order to reduce use cost and simplify detection process, it is necessary to develop multifunctional and multi-emitter Ln-MOFs luminescence sensors. The structure and property of Ln-MOFs are mainly controlled...

A novel 2D metal–organic framework probe: a highly sensitive and visual fluorescent sensor for Al3+, Cr3+ and Fe3+ ions

“…[17][18][19][20] In recent years, small molecules, ions, solvents, gases, biomolecules, pH, temperature and other types of analytes have been efficiently detected by MOF-based fluorescent sensors. [21][22][23][24][25][26][27][28] The detection mechanism based on MOFs is also attributed to the electron/ energy transfer, which is closely related to the weak interactions (p-p stacking or hydrogen bonds) between the MOFs and the analytes. [29][30][31] Of the reported MOF-based fluorescent sensors, some sensors predominately show quenched emission, defined as ''turn-off'' sensors.…”

Two Stable Cd-MOFs as Dual-Functional Materials with Luminescent Sensing of Antibiotics and Proton Conduction

“…Coordinated and free H 2 biim molecules reside in the space between the layers. The adjacent 2D layers are further connected by π···π stacking interactions (3.622(3) and 3.519(6) Å) between coordinated H 2 biim molecules and free H 2 biim molecules to result in the formation of a 3D supramolecular network (Figure e). , Importantly, the coordinated and free H 2 biim molecules similar to imidazole molecules can be used as proton carriers, which results in the formation of abundant hydrogen-bonding networks and provides potential proton conductive pathways (Figure f and Table S4).…”

Multifunctionality of luminescent molecular nanomagnets based on lanthanide complexes

“…[103][104][105][106][107][108][109] Both luminescent materials built from Ln(III) complexes and 4f-metal-based SMMs have been independently explored as the source of multifunctionality. The Ln(III) complexes were found to combine luminescent effects with second harmonic generation (SHG), [110][111][112] proton or electronic conductivity, 113,114 and catalytic activity, 115,116 as well as sensitivity to solvent molecules, [117][118][119] various chemicals, [120][121][122] and light. [123][124][125] Non-emissive Ln(III) molecular nanomagnets have also been successfully functionalized, in particular, towards chemical and photo-switching abilities, [126][127][128][129] ferroelectricity, 130 and chirality.…”