Directional Functionalization of MOF‐74 Analogs via Ligand Pre‐installation

Abstract

A MOF-74 analog derived from non-DOBDC linkers, Cu(II)-MOF-74-L 1 , was synthesized and characterized. Based on this, directionanl functionalizations of the hexagonal pore were introduced through well-designed pre-installation of ligands. By this strategy, two MOF-74 analogs with hydrophobic and hydrophilic surfaces of pore had been achieved by equiping with Cl or OH groups respectively and proved with excellent catalysis and luminescent sensing properties. Herein, the synthetic strategy and functional regulation were reported toward the development of functional MOF-74 materials. Figure 3 (a) Picture of 4,4'-bipyridyl bridged units of ZnL 3 ; (b) 2D packing structure of the helical chains in left-and right-hands; (c) viewing of the 3D packing structure of ZnL 3 from c-axis; (d) the first application of MOF-74-ZnL 3 in fluorencent sensor. [18] Directional Functionalization of MOF-74 Analogs via Ligand Pre-installation Chin.

Structural conversion of three copper(ii) complexes with snapshot observations based on the different crystal colours and morphology

“…Some coordination complexes of this kind of ligands are three-dimension coordination polymer with crystal structure similar with MOF-74 structure. 32,33 In this work, as an extension of our study, a new ligand, L ¼ (E)-2-((2-hydroxy-4-methoxybenzylidene)amino) acetic acid has been design and synthesized. Its three novel…”

Construction of MOF-74 analogues through pre-installation of functional ligands: efficient directional functionalization and properties

“…The benzene ring is the only functional group that faces into the channel in the previous reported work, which was based on the copper complex made from salicylaldehyde-modified glycine. 37 This makes the channel amphiphilic. The constructed hollow measures 10.5 Å, and the windows at either end measures 7.0 Å.…”

“…During the testing of water stability, it was discovered that CuL 2 (ref. 37) and CuL 3 (2) have a unique hydrophobicity because they are very water-repellent and may form bubbles wrapped in a hydrophobic layer in water. We tested the two materials' hydrophobicity using the water contact angle in order to further confirm their hydrophobicity and stability in water.…”

Improving in vivo Uranyl Removal Efficacy of a Nano‐Metal Organic Framework by Interior Functionalization with 3‐Hydroxy‐2‐pyridinone

“…11.5 Å for two ligands), the pores in MIL‐101 still provide sufficient room to accommodate UO 2 2+ which is 6.04—6.84 Å in length. [ 37‐39 ] Taking the aforementioned advantages of MIL‐101 and HOPO ligands into consideration, we propose using HOPO functionalized MIL‐101 for the decorporation of uranium in vivo .…”