Pyrazine functionalization to boost the antenna effect in rare-earth metal–organic frameworks for tetracycline detection

Abstract

Here we report a generalizable strategy for the synthesis of rare-earth metal-organic frameworks (RE-MOFs) with 12-connected RE9 clusters and shp-topology. A total of 26 isostructural RE-MOFs (JNU-205-RE and JNU-206-RE) were...

Multifunctional AIEgen-based luminescent metal–organic frameworks with coordination-induced emission for chemical sensing

“…41 N-heterocycle pyrazine changes the p-bond structure; thus, TCPP sensitizes Eu 3+ ions for their antenna effect emission. Although there are some reports about TCPP, [43][44][45][46][47] the research is not comprehensive. The properties and applications of TCPP are still required to be explored.…”

An Adenine‐Based Biological Metal‐Organic Framework as an Efficient Luminescent Sensor for Tetracycline Detection

“…The band gap energy (Eg) and the LUMO energy of JNU‐104 were estimated to be 2.96 eV and −3.56 eV, respectively. Moreover, the frontier orbital levels of TCAs were calculated by density functional theory (DFT) at the B3LYP/def2‐tzvp level [11a,19] . According to Figure 4b, the fluorescence response via photoinduced electron transfer (PET) is highly unlikely because the conduction band of JNU‐104 lies at a much lower energy level than the LUMOs of TCAs [20] .…”

Thiadiazole-functionalized metal–organic frameworks for photocatalytic C–N and C–C coupling reactions: tuning the ROS generation efficiencyviacobalt introduction

“…9,[13][14][15][16][17][18][19][20] Metal-organic frameworks (MOFs), a class of crystalline porous materials comprising metal ions/clusters and organic ligands, have aroused great interest in gas separation/storage, hostÀguest recognition, drug delivery, heterogeneous catalysis, wastewater treatment, and energy conversion on account of their exceptionally high porosity and tunable surface chemistry. [21][22][23][24][25][26][27][28][29][30][31] However, the poor chemical stability of most MOFs limits their involvement in practical applications. To this end, high-strength coordination bonds between metal ions and organic bridging ligands are desired.…”