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A newly binuclear nickel(II) complex, [Ni(en)(ox)](ClO) () (where en = ethylenediamine, and ox = oxalate), has been isolated from a reaction of NiCl·6HO, ethylenediamine, ammonium oxalate and sodium perchlorate in water and its crystal structure has been determined by X-ray crystallography and infra-red techniques. Compound was successfully employed to promote the one-pot reaction of aldehydes, amines and acetylenes for the construction of corresponding propargylamines under solvent-free media with fine yields. Further studies reveal this catalytic system can be refreshed and used again in five runs.
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http://dx.doi.org/10.1016/j.heliyon.2023.e17743 | DOI Listing |
J Fluoresc
June 2025
Department of Inorganic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon.
Three new Co(II) (1), Ni(II) (2), and Cu(II) (3) binuclear complexes with versatile azide bridges and Schiff base derived from 2-hydroxy-1-naphthaldehyde and 2-aminothiophenol have been synthesized. Compounds 1-3 were characterized using various techniques, including microanalysis (CHNS), molar conductance, FTIR, UV-visible, 1H-NMR, mass spec, photoluminescence (PL) spectroscopy, thermogravimetric analysis (TGA-DTG), scanning electron microscopy (SEM) and Energy dispersive X-ray (EDX) techniques. Molar conductance values of the newly synthesized complexes indicate that the complexes are electrolytes in solution.
View Article and Find Full Text PDFInorg Chem
May 2025
School of Energy and Materials, Shanghai Polytechnic University, Shanghai 201209, China.
Metal-organic frameworks (MOFs) hold great potential for carbon monoxide (CO) adsorption owing to their large pore volume, diverse periodic network structures, and designability. Machine learning is anticipated to provide optimization parameters for designing high-efficiency MOFs adsorbents, avoiding time-consuming experiments. Here, we proposed an ensemble-learning strategy accounting for multidimensional analysis of features to rationally design pore geometries, structural properties, and synthesis conditions of MOFs toward high performance for CO adsorption.
View Article and Find Full Text PDFChemistry
March 2025
Inorganic Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zografou 15771, Athens, Greece.
The prominence of binuclear, bimetallic catalysts underlines the need for the design and development of diverse bifunctional ligand frameworks that exhibit tunable electronic and structural properties. Such strategies enable metal-metal and ligand-metal cooperation towards catalytic applications, improve catalytic activity, and are essential for advancing multi-electron transfers for catalytic application. In this work we present the synthesis, crystal structure, and photocatalytic properties of a binuclear Ni(II) complex, [Ni(1,10-phenanthroline)(2-sulfidophenolate)] (1).
View Article and Find Full Text PDFMolecules
September 2024
Faculty of Medicine, Benha University, Benha 13518, Egypt.
A condensation reaction of salicylic acid with formaldehyde in the presence of sulfuric acid led to the synthesization of the bis(2-hydroxy-3-carboxyphenyl)methane (BHCM) ligand, which was subsequently allowed to bind with nickel (II) ions. In light of the information obtained from the elemental analyses (C, H, and M), spectral (IR, MS, H-NMR, and UV-Vis) and thermal and magnetic measurements, the most likely structures of the ligand and complex have been identified. It has been suggested that the BHCM coordinates in a tetradentate manner with two Ni(II) ions to produce an octahedral binuclear complex.
View Article and Find Full Text PDFChemistry
November 2024
Faculty of Chemistry, University of Wrocław, 14F. Joliot-Curie St., 50-383, Wrocław, Poland.