Facile Synthesis of a Long Afterglow Calcium–Organic Framework in Water

Abstract

Presented here is a water-stable Ca-MOF that has been facilely synthesized from the metastable 3D framework in water and exhibits room-temperature phosphorescence with second scale long afterglow.

Effect of Orbital-Symmetry Matching in a Metal–Organic Framework for Highly Efficient C2H2/C2H4 and C2H2/CO2 Separations

“…As a new class of porous materials, metal–organic frameworks (MOFs), which are known for their ability to be designed at the molecular level, and their pore surfaces can be functionalized by open metal sites and a variety of functional organic groups (e.g., −NH 2 , −F, and −OH) to achieve specific molecular capture. − Although several MOFs have been tried for very challenging gas separations (e.g., olefins/paraffin and C 2 H 2 /CO 2 ), − deep insights into the separation mechanisms, stability, material selection, and upscaling remain obscure for the development of diverse porous materials for industrial gas separation. Moreover, a benchmark material with a high separation performance of one specific component mixture is generally accompanied by low separation performances of other component mixtures. − For example, MOFs showing high selectivity toward C 2 H 2 over both C 2 H 4 and CO 2 are rare.…”

Switching Adsorbent Layered Material that Enables Stepwise Capture of C8 Aromatics via Single-Crystal-to-Single-Crystal Transformations

“…Metal–organic materials (MOMs), − which include porous coordination polymers (PCPs) and metal–organic frameworks (MOFs), offer potential utility in storage, separation, sensing, and catalysis. − An advantage of MOMs is that they can offer structural tunability in terms of pore size, shape, and chemistry to enable systematic crystal engineering studies of their structure/property relationships. ,,,,, Of these, “0D materials”, such as Werner complexes and L-shaped Ag­(I) molecular complexes, can exhibit OX or PX adsorption preference, but they lack the combination of high selectivity (>5) and high working capacity. , Farha et al demonstrated two examples of MOFs, NU-2000 and NU-2001 , that exhibit strong separation performance of xylene isomers in 2022 . In the same year, a flexible stacked coordination polymer, [Mn­(dhbq)­(H 2 O) 2 ] (H 2 dhbq = 2,5-dihydroxy-1,4-benzoquinone), was reported by Li and co-workers that exhibits recognition and sieving of xylene isomers .…”