Interpenetrated metal–organic frameworks with enhanced photoluminescence for selective recognition of <i>m</i>-xylene from xylene isomers

Zhang, Xiuling; Li, Tingting; Jiao, Wei; Tian, Gao-Hua; Cao, Qing-Ling; Wang, Yujie; Hou, Wenli; Zhou, Wenfeng; Zhang, Zhenwei; Hu, Hui; Zhang, Yongzheng; Zhang, Da‐Shuai; Li, Qing; Geng, Longlong

doi:10.1039/d1dt03968g

Cited by 17 publications

(5 citation statements)

References 56 publications

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“…Metal–organic complexes (MOCs), as emerging hybrid materials, have potential application in numerous areas because of their tunability and tailorability in terms of structure and properties. − Among various functionalized MOCs, photochromic MOCs (PMOCs) have attracted growing interest of researchers due to their potentiality in various fields such as information storage, sensing, inkless printing, decoration, and protection. − Recently, researchers have devoted themselves to exploring the photo-responsive properties of various switchable functions of PMOCs, with examples of electrical conductivity, , magnetism, − luminescence, , and second-order nonlinearity. − However, the development of novel PMOC systems is still challenging. The factors influencing the performance of PMOCs still need in-depth exploration. , …”

Section: Introductionmentioning

confidence: 99%

Photochromic Supramolecular Isomers Derived from Pb(II)-Bipyridinedicarboxylate Complexes

Liang

Ren

et al. 2023

Inorg. Chem.

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Photochromic metal–organic complexes (PMOCs) have received huge attention of chemists, thanks to their diverse structural characteristic and various available photo-modulate physicochemical functionalities. The organic ligand plays a crucial role in the quest of PMOCs with specific photo-responsive functionalities. The multiple coordination modes of polydentate ligands also provide possibilities for forming isomeric MOCs, which may open a new perspective on the research of PMOCs. The exploration of suitable PMOC systems is significant for the yield of isomeric PMOCs. Taking into account extant PMOCs based on polypyridines and carboxylate as electron acceptors (EAs) and donors (EDs), the covalent fusion of suitable pyridyl and carboxyl species may produce single functionalized ligands bearing ED and EA moieties for the building of novel PMOCs. In this study, the coordination assembly of bipyridinedicarboxylate (2,2′-bipyridine-4,4′-dicarboxylic acid, H2bpdc) and Pb2+ ions generate two isomeric MOCs, [Pb(bpdc)]·H2O (1 and 2), which have the same chemical compositions with main discrepancies in the coordination mode of bpdc2– ligands. As expected, supramolecular isomers 1 and 2 exhibited different photochromic performance, thanks to the distinct microscopic functional structural units. A schematic encryption and anti-counterfeiting device based on complexes 1 and 2 has also been studied. Compared with the extensively studied PMOCs supported by photoactive ligands like pyridinium and naphthalimide-derivatives and PMOCs derived from mixed electron-accepting polydentate N-ligands and electron-donating ligands, our work provides a new idea for building PMOCs based on pyridinecarboxylic acid ligands.

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Section: Introductionmentioning

confidence: 99%

Photochromic Supramolecular Isomers Derived from Pb(II)-Bipyridinedicarboxylate Complexes

Liang

Ren

et al. 2023

Inorg. Chem.

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“…As a new class of hybrid materials, − metal–organic complexes (MOCs) with good predesignability have become a research hotspot at the forefront of chemical engineering and materials science. The combination of MOCs and RTP functionality provides opportunities to produce MOC-based RTP materials.…”

Section: Introductionmentioning

confidence: 99%

Coordinate Anchoring of Mixed Luminophores in Two Isostructural Hybrid Layers to Achieve Tunable Room-Temperature Phosphorescence

Cui

Han

et al. 2022

Inorg. Chem.

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Room-temperature phosphorescence (RTP) materials have widespread applications in biological imaging, anticounterfeiting, and optoelectronic devices. Because of the predesignability of metal–organic complexes (MOCs), the RTP materials based on MOC systems have received huge attention from researchers. The coordinate anchoring of luminophores to enhance the rigidity of organic molecules and restrict the nonradiative transition offers opportunities for generating MOC materials with captivating RTP performance. Hitherto, most of the MOC-based RTP materials feature a single luminophore ligand. The development of new MOC systems with RTP functionality is still challenging. Herein, we use the mixed-ligand synthetic strategy to produce isostructural MOCs, [Zn(TIMB)(X2-TPA)]·H2O (1, X = Cl; 2, X = Br; TIMB = 1,3,5-tris(2-methyl-1H-imidazol-1-yl)benzene; H2-X2-TPA = 2,5-dichloroterephthalic and 2,5-dibromoterephthalic acid), and modulate the RTP properties of resultant products via the synergy of coordinate anchoring and substitution synthesis. 1 and 2 feature similar coordination layers composed of neutral TIMB and anionic X2-TPA2– ligands, which provide a good structural model to tune the RTP performances of final products via substitution synthesis. Different from the reported RTP materials based on MOC systems, our study provides a general way to build and modulate MOC-based RTP materials with the assistance of coordinate anchoring and substitution synthesis strategies.

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“…Most of these relevant studies are focused on the chemical separation of xylenes − and some research works have been done on the detection and discrimination of the xylene isomers based on various materials such as ambipolar transistors, metal oxide-based chemiresistors, NiO/NiWO 4 composites, and Co-doped ZnO nanowires . In addition, surface-enhanced Raman scattering (SERS) and hydrogen-bonded organic framework (HOF) substrates have also been used. , A few luminescent compounds have also been reported to sense o -xylene and m -xylene. , But there is no report of luminescent CP-based aqueous-phase selective detection of p -xylene from a pool of other C 8 isomers, and investigation along this line remains a more or less unexplored area.…”

Section: Introductionmentioning

confidence: 99%

“…43,44 A few luminescent compounds have also been reported to sense o-xylene and 45 m-xylene. 46,47 But there is no report of luminescent CP-based aqueous-phase selective detection of p-xylene from a pool of other C 8 isomers, and investigation along this line remains a more or less unexplored area.…”

Section: ■ Introductionmentioning

confidence: 99%

Cd-Based Coordination Polymer Using a Bioinspired Ligand: Studies Toward Turn-On Luminescence-Based Sensing and Schottky Diode Behavior through Device Fabrication

Das

Patel

Gupta

et al. 2022

Crystal Growth & Design

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A new coordination polymer of formula [Cd-(C 8 N 2 O 3 H 7 ) 2 (H 2 O) 2 ] n , 1, has been synthesized via the hydrothermal method using a bioinspired ligand, N-nicotinoylglycinate. The compound was characterized by SCXRD, PXRD, FTIR spectra, and thermogravimetric analysis (TGA). Single-crystal Xray diffraction reveals the connectivity between Cd 2+ ions and Nnicotinoylglycinate layers in nature, and the layers are arranged in an ABAB.... fashion to give a three-dimensional packing arrangement stabilized by interlayer N−H•••O and O−H•••O hydrogen bonds and π•••π interactions.An aqueous dispersion of compound 1 exhibits strong emission centered at 420 nm after excitation at 280 nm. This emission has been used for the selective sensing of pxylene over other related electron-rich C 8 aromatic isomers based on luminescence turn-on. The calculated value of the limit of detection (LOD) was 84.55 ppb, which is far lower than the safe limit of p-xylene (300 ppb in water). This compound also shows pH-dependent luminescence properties and stability in a wide range of pH (1−14). In both cases (p-xylene detection and pH dependence), time-resolved studies were used to determine the excited-state lifetime and understand the mechanism of luminescence behavior in the presence of analytes. Density functional theory (DFT)-based computational studies were also carried out to understand the selectivity of detection of p-xylene over the other isomers. Schottky diodes fabricated using this material (CP) showed ideal diode-like behavior at a low voltage regime.

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Interpenetrated metal–organic frameworks with enhanced photoluminescence for selective recognition of m-xylene from xylene isomers

Abstract: Two novel luminescent metal-organic frameworks (MOFs), [Zn3(TCA)2(BPB)2]n (DZU-101, where H3TCA = 4,4',4''-tricarboxyltriphenylamine and BPB = 1,4-bis(pyrid-4-yl)benzene) and [Zn3(TCA)2(BPB)DMA]n (DZU-102), based on the same ligand and metal ions were synthesized through...

Cited by 17 publications

References 56 publications

Photochromic Supramolecular Isomers Derived from Pb(II)-Bipyridinedicarboxylate Complexes

Photochromic Supramolecular Isomers Derived from Pb(II)-Bipyridinedicarboxylate Complexes

Coordinate Anchoring of Mixed Luminophores in Two Isostructural Hybrid Layers to Achieve Tunable Room-Temperature Phosphorescence

Cd-Based Coordination Polymer Using a Bioinspired Ligand: Studies Toward Turn-On Luminescence-Based Sensing and Schottky Diode Behavior through Device Fabrication

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