A new 3D four-fold interpenetrated dia-like luminescent Zn(ii)-based metal–organic framework: the sensitive detection of Fe³⁺, Cr₂O₇²⁻, and CrO₄²⁻ in water, and nitrobenzene in ethanol

Abstract

A four-fold interpenetrating Zn-MOF as a multi-responsive fluorescent sensor for Fe3+, Cr2O72−, and CrO42− ions in water, and NB in ethanol is reported.

Zinc(II) Carboxylate Coordination Polymers with Versatile Applications

“…The 3D MOF, [Zn 2 (4,4′-nba) 2 (1,4-bimb) 2 ] n ( 49 ), obtained from 3-nitro-4,4′-biphenyldicarboxylic acid (4,4′-H 2 nba) and 1,4-bis(imidazole-1-ylmethyl)benzene (1,4-bimb), proved to be a highly sensitive multi-responsive luminescent sensor for Fe(III), Cr 2 O 7 2− , and CrO 4 2− in H 2 O and for NB in ethanol. Moreover, the compound can be recycled at least five times for sensing Fe(III) and Cr(VI) and can act as a fluorescent probe for Fe(III) under physiological pH conditions [ 72 ].…”

Luminescent Zn (II)-Based Nanoprobes: A Highly Symmetric Supramolecular Platform for Sensing of Biological Targets and Living Cell Imaging

“…Some Zn MOFs are multiresponsive probes for sensing biologically sensible targets. Zhong-Feng Shi and coworkers in 2020 produced (Xu et al, 2020) the LMOF [Zn 2 (4,4'-nba) 2 (1,4-bib) 2 ]n (1) where 4,4'-H 2 nba 3-nitro-4,4'-biphenyl dicarboxylic acid and 1,4-bib 1,4-bis(imidazole-1-ylmethyl)-benzene, which can be used as a sensitive multi-responsive luminescent sensor for detecting of Fe 3+ , Cr 2 O 7 2and CrO 4 2anions in water and for sensing of nitrobenzene in ethanol. LOD values reach 1.76, 3.25, 3.8 and 0.19 mM, respectively.…”

A 12-Connected [Y4((μ3-OH)4]8+ Cluster-Based Luminescent Metal-Organic Framework for Selective Turn-on Detection of F− in H2O

“…H 2 bda ligand has been widely used to synthesize high dimensional lanthanide frameworks, various supramolecular structures with fascinating properties displayed. On the other side, as the most relevant derivatives of H 2 bda, such as 3-nitro-4,4′-biphenyldicarboxylic [ 64 ], 3-amino-4,4′-biphenyldicarboxylic [ 65 ], 3,3′-dinitro-4,4′-biphenyldicarboxylic [ 66 , 67 ], and 3,3′-diamino-4,4′-biphenyldicarboxylic acid [ 68 , 69 ], have hitherto remained largely unexplored in the field of CPs/MOFs compared with the well-studied ligands H 2 bda. This article takes 3-nitro-4,4′-biphenyldicarboxylic (abbreviated as H 2 nba) as an example to elaborate the potential advantages of these ligands for constructing novel MOFs.…”

“…Despite numerous MOFs or CPs have been synthesized based on 4,4′-biphenyldicarboxylate acid, little attention have been focused on its derivatives, such as H 2 nba. To the best of our knowledge and in a search of the Cambridge Crystallographic Database (CSD), however, there is only one crystal structure report of H 2 nba as ligand for the construction of MOFs or CPs by our research group to date [ 64 ].…”