New insights into oximic ligands: Synthesis and characterization of 1D chains by the use of pyridine 2-amidoxime and polycarboxylates

Mylonas-Margaritis, Ioannis; Winterlich, Meghan; Efthymiou, Constantinos G.; Lazarides, Theodore; McArdle, Patrick; Papatriantafyllopoulou, Constantina

doi:10.1016/j.poly.2018.05.027

Cited by 7 publications

(13 citation statements)

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“…Our group has developed an intense interest over the last years in the synthesis of coordination polymers and MOFs by the use of 2-pyridyl oximes and a polycarboxylic ligand, such as 1,4-benzenedicarboxylic, 1,2,4,5-benzene tetracarboxylic acid, etc. [ 66 , 67 ]. These research efforts have resulted in new species, some of which display new framework topologies and promising sensing properties.…”

Section: Resultsmentioning

confidence: 99%

“…These research efforts have resulted in new species, some of which display new framework topologies and promising sensing properties. It is worth to mention that the initial employment of 1,3,5-benzenetricarboxylic acid (H 3 btc) in Ni II chemistry in the presence of an oximic ligand has led to the isolation of a 1D coordination polymer [ 67 ]. This prompted us to further study this reaction system by the use of different metal ions and investigate its potential to favour the formation of higher dimensionality coordination polymers and/or MOFs.…”

Section: Resultsmentioning

confidence: 99%

“…The initial combination of 2-pyridyl oximes with a variety of di-, tri- and tetra- carboxylic acids led to the first 2-pyridyl oxime- based MOFs, and other coordination polymers as well [ 66 , 67 ]. It is worth to mention that among the MOFs that we isolated with these ligands, [Cu 4 (OH) 2 (pma)(mpko) 2 ] n , where pma 4- is the tetra-anion of 1,2,4,5-benzene tetracarboxylic acid (pyromellitic acid) and mpko- is the anionic form of 2-methyl pyridyl ketoxime, is based on a tetranuclear, butterfly-shaped SBU and possesses a novel 3,4,5,8-c net topology [ 66 ].…”

Section: Introductionmentioning

confidence: 99%

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ZnII and CuII-Based Coordination Polymers and Metal Organic Frameworks by the of Use of 2-Pyridyl Oximes and 1,3,5-Benzenetricarboxylic Acid

et al. 2021

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The simultaneous use of 2-pyridyl oximes (pyridine-2 amidoxime, H2pyaox; 2-methyl pyridyl ketoxime, Hmpko) and 1,3,5-benzenetricarboxylic acid (H3btc) provided access to five new compounds, namely [Zn(H2btc)2(H2pyaox)2]•2H2O (1•2H2O), [Zn(Hbtc)(H2pyaox)2]n (2), [Cu(Hbtc)(H2pyaox)]n (3), [Cu(Hbtc)(HmpKo)]n (4) and [Cu2(Hbtc)2(Hmpko)2(H2O)2]•4H2O (5•4H2O). Among them, 3 is the first example of a metal-organic framework (MOF) containing H2pyaox. Its framework can be described as a 3-c uninodal net of hcb topology with the layers being parallel to the (1,0,1) plane. Furthermore, 3 is the third reported MOF based on a 2-pyridyl oxime in general. 2 and 4 are new members of a small family of coordination polymers containing an oximic ligand. 1–5 form 3D networks through strong intermolecular interactions. Dc magnetic susceptibility studies were carried out in a crystalline sample of 3 and revealed the presence of weak exchange interactions between the metal centres; the experimental data were fitted to a theoretical model with the fitting parameters being J = −0.16(1) cm−1 and g = 2.085(1). The isotropic g value was also confirmed by electronic paramagnetic resonance (EPR) spectroscopy. Reactivity studies were performed for 3 in the presence of metal ions; the reaction progress was studied and discussed for Fe(NO3)3 by the use of several characterization techniques, including single crystal X-ray crystallography and IR spectroscopy.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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ZnII and CuII-Based Coordination Polymers and Metal Organic Frameworks by the of Use of 2-Pyridyl Oximes and 1,3,5-Benzenetricarboxylic Acid

et al. 2021

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“…These research efforts have resulted in a large number of new homo-and heterometallic new species with interesting structural features and magnetic properties, e.g., Ni [83][84][85][86][87][88][89]. We recently decided to explore the ability of such ligands to favor the formation of MOFs, when combined with di-and tricarboxylic ligands, such as 1,4-benzenedicarboxylic and 1,3,5-benzenetricarboxylic acid [110]. This study yielded a new family of 1D chains and prompted us to expand this work using a tetracarboxylic ligand with higher bridging capability, in order to further increase the potential of the reaction system to provide access to new MOFs.…”

Section: Synthetic Discussionmentioning

confidence: 99%

“…Among them, 3 and 9 are the first MOFs based on a 2-pyridyl oxime with 9 possessing a novel framework topology. 2, 6, and 8 join a small family of coordination polymers containing an oximic ligand [110]. The purity and stability of these compounds has been verified by pxrd studies.…”

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confidence: 91%

From 1D Coordination Polymers to Metal Organic Frameworks by the Use of 2-Pyridyl Oximes

et al. 2020

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The synthesis and characterization of coordination polymers and metal–organic frameworks (MOFs) has attracted a significant interest over the last decades due to their fascinating physical properties, as well as their use in a wide range of technological, environmental, and biomedical applications. The initial use of 2-pyridyl oximic ligands such as pyridine-2 amidoxime (H2pyaox) and 2-methyl pyridyl ketoxime (Hmpko) in combination with 1,2,4,5-benzene tetracarboxylic acid (pyromellitic acid), H4pma, provided access to nine new compounds whose structures and properties are discussed in detail. Among them, [Zn2(pma)(H2pyaox)2(H2O)2]n (3) and [Cu4(OH)2(pma)(mpko)2]n (9) are the first MOFs based on a 2-pyridyl oxime with 9 possessing a novel 3,4,5,8-c net topology. [Zn2(pma)(H2pyaox)2]n (2), [Cu2(pma)(H2pyaox)2(DMF)2]n (6), and [Cu2(pma)(Hmpko)2(DMF)2]n (8) join a small family of coordination polymers containing an oximic ligand. 9 exhibits selectivity for FeIII ions adsorption, as was demonstrated by a variety of techniques including UV-vis, EDX, and magnetism. DC magnetic susceptibility studies in 9 revealed the presence of strong antiferromagnetic interactions between the metal centers, which lead to a diamagnetic ground state; it was also found that the magnetic properties of 9 are affected by the amount of the encapsulated Fe3+ ions, which is a very desirable property for the development of magnetism-based sensors.

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Mixed‐Ligand Metal‐Organic Frameworks: Synthesis and Characterization of New MOFs Containing Pyridine‐2,6‐dimethanolate and Benzene‐1,4‐dicarboxylate Ligands

et al. 2022

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The development of synthetic approaches towards new mixed‐ligand metal organic frameworks (MOFs) has been attracting considerable attention recently as they display fascinating properties due to the synergistic effect between the different ligands. Herein, the initial combination of pyridine‐2,6‐dimethanol (H2pdm) with benzene‐1,4‐dicarboxylic acid (H2bdc) has provided access to three new mixed‐ligand MOFs, [M3(bdc)2(Hpdm)2]n (MII=ZnII, 1; MnII, 2) and [Mn3(bdc)3(H2pdm)2]n (3). 1–3 are the first MOFs containing H2pdm in its neutral or anionic form. 1 and 2 are isostructural 2D MOFs with a square lattice (sql) framework topology, while 3 is a 3D MOF possessing a primitive cubic (pcu) topology. Dc magnetic susceptibility measurements for 3 demonstrate antiferromagnetic interactions between the MnII ions which is a combination of intra‐ and intertrimer exchange pathways.

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New insights into oximic ligands: Synthesis and characterization of 1D chains by the use of pyridine 2-amidoxime and polycarboxylates

Cited by 7 publications

References 62 publications

ZnII and CuII-Based Coordination Polymers and Metal Organic Frameworks by the of Use of 2-Pyridyl Oximes and 1,3,5-Benzenetricarboxylic Acid

ZnII and CuII-Based Coordination Polymers and Metal Organic Frameworks by the of Use of 2-Pyridyl Oximes and 1,3,5-Benzenetricarboxylic Acid

From 1D Coordination Polymers to Metal Organic Frameworks by the Use of 2-Pyridyl Oximes

Mixed‐Ligand Metal‐Organic Frameworks: Synthesis and Characterization of New MOFs Containing Pyridine‐2,6‐dimethanolate and Benzene‐1,4‐dicarboxylate Ligands

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