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Dimakopoulou F, Efthymiou CG, O’Malley C, Kourtellaris A, Moushi E, Tasiopooulos A, Perlepes SP, McArdle P, Costa-Villén E, Mayans J, Papatriantafyllopoulou C. Novel Co 5 and Ni 4 Metal Complexes and Ferromagnets by the Combination of 2-Pyridyl Oximes with Polycarboxylic Ligands. Molecules 2022; 27:4701. [PMID: 35897877 PMCID: PMC9332737 DOI: 10.3390/molecules27154701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 07/18/2022] [Accepted: 07/20/2022] [Indexed: 02/01/2023] Open
Abstract
The use of 2-pyridyl oximes in metal complexes chemistry has been extensively investigated in the last few decades as a fruitful source of species with interesting magnetic properties. In this work, the initial combination of pyridine-2-amidoxime (pyaoxH2) and 2-methyl pyridyl ketoxime (mpkoH) with isonicotinic acid (HINA) and 3,5-pyrazole dicarboxylic acid (H3pdc) has provided access to three new compounds, [Ni4(INA)2(pyaox)2(pyaoxH)2(DMF)2] (1), [Co5(mpko)6(mpkoH)2(OMe)2(H2O)](ClO4)6 (2), and [Co5(OH)(Hpdc)5(H2pdc)] (3). 1 displays a square-planar metal topology, being the first example that bears simultaneously HINA and pyaoxH2 in their neutral or ionic form. The neighbouring Ni4 units in 1 are held together through strong intermolecular hydrogen bonding interactions, forming a three-dimensional supramolecular framework. 2 and 3 are mixed-valent Co4IIICoII and Co2IIICoII3 compounds with a bowtie and trigonal bipyramidal metal topology, accordingly. Direct current and alternate current magnetic susceptibility studies revealed that the exchange interactions between the NiII ions in 1 are ferromagnetic (J = 1.79(4) cm-1), while 2 exhibits weak AC signals in the presence of a magnetic field. The syntheses, crystal structures, and magnetic properties of 1-3 are discussed in detail.
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Affiliation(s)
- Foteini Dimakopoulou
- School of Biological and Chemical Sciences, College of Science and Engineering, National University of Ireland Galway, University Road, H91 TK33 Galway, Ireland; (F.D.); (C.G.E.); (C.O.); (P.M.)
| | - Costantinos G. Efthymiou
- School of Biological and Chemical Sciences, College of Science and Engineering, National University of Ireland Galway, University Road, H91 TK33 Galway, Ireland; (F.D.); (C.G.E.); (C.O.); (P.M.)
| | - Ciaran O’Malley
- School of Biological and Chemical Sciences, College of Science and Engineering, National University of Ireland Galway, University Road, H91 TK33 Galway, Ireland; (F.D.); (C.G.E.); (C.O.); (P.M.)
| | - Andreas Kourtellaris
- Department of Chemistry, University of Cyprus, Nicosia 1678, Cyprus; (A.K.); (A.T.)
| | - Eleni Moushi
- Department of Life Sciences, European University of Cyprus, Nicosia 2404, Cyprus;
| | | | | | - Patrick McArdle
- School of Biological and Chemical Sciences, College of Science and Engineering, National University of Ireland Galway, University Road, H91 TK33 Galway, Ireland; (F.D.); (C.G.E.); (C.O.); (P.M.)
| | - Ernesto Costa-Villén
- Departament de Química Inorgànica i Orgànica, Secció Inorgànica and Institute of Nanoscience (IN2UB) and Nanotecnology, Universitat de Barcelona, Marti i Franques 1-11, 08028 Barcelona, Spain; (E.C.-V.); (J.M.)
| | - Julia Mayans
- Departament de Química Inorgànica i Orgànica, Secció Inorgànica and Institute of Nanoscience (IN2UB) and Nanotecnology, Universitat de Barcelona, Marti i Franques 1-11, 08028 Barcelona, Spain; (E.C.-V.); (J.M.)
| | - Constantina Papatriantafyllopoulou
- School of Biological and Chemical Sciences, College of Science and Engineering, National University of Ireland Galway, University Road, H91 TK33 Galway, Ireland; (F.D.); (C.G.E.); (C.O.); (P.M.)
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Singha DK, Mahata P. Coordination polymer-derived nano-sized zinc ferrite with excellent performance in nitro-explosive detection. Dalton Trans 2018; 46:11344-11354. [PMID: 28809982 DOI: 10.1039/c7dt02115a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Herein, a mixed metal coordination polymer, {(H2pip)[Zn1/3Fe2/3(pydc-2,5)2(H2O)]·2H2O} 1 {where H2pip = piperazinediium and pydc-2,5 = pyridine-2,5-dicarboxylate}, was successfully synthesized using a hydrothermal technique. To confirm the structure and phase purity of 1, single crystals of an isomorphous pure Fe compound, {(H2pip)[Fe(pydc-2,5)2(H2O)]·2H2O} 1a, were synthesized based on similar synthetic conditions. Single crystal X-ray data of 1a confirmed the one-dimensional anionic metal-organic coordination polymer hydrogen bonded with protonated piprazine (piperazinediium) and lattice water molecules. The phase purity of 1 and 1a were confirmed via powder X-ray diffraction. Compound 1 was systematically characterized using IR, TGA, SEM, and EDX elemental mapping analysis. Compound 1 was used as a single source precursor for the preparation of nano-sized ZnFe2O4via thermal decomposition. The as-obtained ZnFe2O4 was fully characterized using PXRD, SEM, TEM, and EDX elemental mapping analysis. It was found that ZnFe2O4 was formed in its pure form with particle size in the nano-dimension. The aqueous dispersion of nano-sized ZnFe2O4 exhibits a strong emission at 402 nm upon excitation at 310 nm. This emissive property was employed for luminescence-based detection of nitroaromatic explosives in an aqueous medium through luminescence quenching for the first time. Importantly, selective detections have been observed for phenolic nitroaromatics based on differential luminescence quenching behaviour along with a detection limit of 57 ppb for 2,4,6-trinitrophenol (TNP) in water.
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Affiliation(s)
- Debal Kanti Singha
- Department of Chemistry, Suri Vidyasagar College, Suri 731101, Birbhum, West Bengal, India.
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Guan L, Wang Y. Synthesis, structure and properties of a hetero-metal organic framework constructed by sulfonate and phenol ligand. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1346245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Lei Guan
- School of Chemistry and Materials Science, Liaoning University of Petroleum and Chemical Engineering, Fushun, China
| | - Ying Wang
- School of Chemistry and Materials Science, Liaoning University of Petroleum and Chemical Engineering, Fushun, China
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Zhu WG, Zheng YQ, Zhu HL, Wang JJ. Structural diversity controlled by alkali/alkaline earth metals for heterometallic AeI/AeII-ZnII coordination polymers based on 4-nitrobenzene-1,2-dicarboxylate. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1219727] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Wen-Gang Zhu
- Center for Applied Solid State Chemistry Research, Ningbo University, Ningbo, PR China
| | - Yue-Qing Zheng
- Center for Applied Solid State Chemistry Research, Ningbo University, Ningbo, PR China
| | - Hong-Lin Zhu
- Center for Applied Solid State Chemistry Research, Ningbo University, Ningbo, PR China
| | - Jin-Jian Wang
- Center for Applied Solid State Chemistry Research, Ningbo University, Ningbo, PR China
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