Regulating the Topologies of Zirconium–Organic Frameworks for a Crystal Sponge Applicable to Inorganic Matter

Stepwise Observation of Iodine Diffusion in a Flexible Coordination Network Having Dual Interactive Sites

We created dual interactive sites in a porous coordination network using a CuI cluster and a rotation-restricted ligand, tetra(3-pyridyl)phenylmethane (3-TPPM). The dual interactive sites of iodide and Cu ions can adsorb I₂ via four-step processes including two chemisorption processes. Initially, one I₂ molecule was physisorbed in a pore and successively chemisorbed on iodide sites of the pore surface, and then the next I₂ molecule was physisorbed and chemisorbed on Cu ions to form a cross-linked network. We revealed the four-step I₂ diffusion process by single-crystal X-ray structure determination and spectroscopic kinetic analysis.

Fluorescence-Based Sensing of Pesticides Using Supramolecular Chemistry

The detection of pesticides in real-world environments is a high priority for a broad range of applications, including in areas of public health, environmental remediation, and agricultural sustainability. While many methods for pesticide detection currently exist, the use of supramolecular fluorescence-based methods has significant practical advantages. Herein, we will review the use of fluorescence-based pesticide detection methods, with a particular focus on supramolecular chemistry-based methods. Illustrative examples that show how such methods have achieved success in real-world environments are also included, as are areas highlighted for future research and development.

Effective nitenpyram detection in a dual-walled nitrogen-rich In(iii)/Tb(iii)–organic framework

A heterometallic MOF probe with the advantages of strong fluorescence, simple synthesis, high density of Lewis acidic and basic sites, and repeatable use, has been designed and synthesized, which exhibits a rapid and sensitive reaction to nitenpyram.