Four Zinc(II) coordination polymers with dicarboxylate and Tri(4-pyridylphenyl)amine ligand: Syntheses, crystal structures and physical properties

Yu, Min; Xuan, Fang; Li, Jian; Liu, Guangxiang

doi:10.1016/j.molstruc.2019.127005

Cited by 4 publications

(1 citation statement)

References 77 publications

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“…The metal center Zn1 is connected to three oxygen atoms from bcob 3– ligands and one oxygen atom from the coordinated hydroxide ion, forming a pentagonal bipyramid coordination sphere (Figure S1a, Supporting Information). The bond lengths of Zn–O range from 1.938(3) to 2.143(4) Å, which are all in accordance with the reported values. − The other metal center Zn2 is connected with three oxygen atoms from cbob 3– ligands, one oxygen atom from the coordinated hydroxide ion and one oxygen atom from the coordinated water molecule, forming a pentagonal bipyramid coordination sphere (Figure S1b, Supporting Information). The bond lengths of Zn–O range from 1.971(0) to 2.411(0) Å, matching the reported values .…”

Section: Resultssupporting

confidence: 84%

Highly Stable Zinc-Based Metal–Organic Frameworks and Corresponding Flexible Composites for Removal and Detection of Antibiotics in Water

Gai

Zhang

Fan

et al. 2020

ACS Appl. Mater. Interfaces

126

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Antibiotic contamination of water bodies is a major environmental concern. Exposure to superfluous antibiotics is an ecological stressor correlated to the development of antibiotic resistance. Thus, it is imperative that effective methods are developed to simultaneously detect and remove such antibiotics so as to avoid inadvertent release. Herein, two flexible three-dimensional (3D) zinc-based metal–organic frameworks (MOFs) {[Zn2(bcob)(OH)(H2O)]·DMA} n (ROD-Zn1) and {[Zn(Hbcob)]·(solvent)} n (ROD-Zn2) (H3bcob = 1,3-bis((4′-carboxylbenzyl)oxy)benzoic acid) with rod second building units (SBUs) are successfully prepared. Their exceptional water and chemical stabilities (toward both acid and base), fast sorption kinetics, and unique framework endow the MOFs with excellent uptake capacity toward various antibiotics in the aqueous environment. The adsorption performance was further optimized by one-pot preparation of MOF-melamine foam (MF) hybrid composites, resulting in a hierarchical microporous–macroporous MOF@MF system (ROD-Zn1@MF and ROD-Zn2@MF), which are readily recyclable after adsorptive capture. The mechanisms of adsorption have been deeply investigated by static and competitive adsorption experiments. In addition, the MOFs exhibit excellent fluorescent properties and quenched by trace amounts of antibiotics in water solution. Therefore, ROD-Zn1 and ROD-Zn2 present a dual-functional performance, being promising candidates for detection and removal of antibiotics.

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