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Synthesis and characterization of naphthaldiimine-based ruthenium(III) complexes; homogenous catalytic hydrogenation and isomerization of internal and terminal alkenes
Faculty
Science
Year:
2022
Type of Publication:
ZU Hosted
Pages:
Authors:
Ahmed Mohamed Fathy Abedulrahman
Staff Zu Site
Abstract In Staff Site
Journal:
Journal of Coordination Chemistry Taylor & Francis
Volume:
Keywords :
Synthesis , characterization , naphthaldiimine-based ruthenium(III) complexes; homogenous
Abstract:
This study is concerned with synthesis and characterization of four naphthaldiimine ligands and their ruthenium(III) complexes. The tetradentate diimines were synthesized by a Schiff condensation reaction between 2-hydroxy-1-naphthaldehyde and various aliphatic diamines with chains of 2, 4, 5 and 6 carbon atoms. Analytical, mass spectra, thermal and electrolytic solution conductance measurements demonstrated the molecular formulas of the prepared Ru(III) complexes. A distorted octahedron stereo- chemistry was proposed for these six-coordinate naphthaldiimine- based Ru(III) complexes. Processing of X-ray diffraction data of 1 and 2 by the computer program Expo 2014 confirmed the final structural formulas that were determined based on spectroscopic and magnetic studies. The catalytic potential of the newly synthesized naphthaldiimine-based Ru(III) complexes in the hydrogenation of 1-hexene and cyclohexene was investigated. The Ru(III) catalysts catalyzed the double bond migration of 1-hexene to give trans-2-hexene which catalytically isomerizes to the stereo isomer cis-2-hexene. The induction step of the catalytic cycle is the formation of the actual catalyst, metal hydride (Ru(III)-H), that was generated in situ during the hydrogenation reaction. Several parameters controlling the catalytic reactions including the structure of the Ru(III) complex, the phase type of catalysis, and the quantity and nature of the solvents used were investigated. Various experiments made it possible to suggest a mechanism for the hydrogenation reactions.
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Ahmed Mohamed Fathy Abedulrahman, "Palladium(II) based imines; synthesis, characterization, X-Ray structural analysis; DFT and catalytic hydrogenation study", ELSEVIER, 2021
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Ahmed Mohamed Fathy Abedulrahman, "Synthesis and characterization of copper(II) complexes with tridentate pyridine – based ligands containing N3 donors. Catechol oxidase and phenoxazinone synthase biomimetic catalytic activity", المؤتمر الدولي الحادي عشر لعلوم البيئة بكلية العلوم, 2016
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Ahmed Mohamed Fathy Abedulrahman, "Structural and bio-catalytic aspects of nano crystallite iron(iii) complexes containing triazole-based ligands", The Royal Society of Chemistry and the Centre National de la Recherche Scientifique, 2023
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Ahmed Mohamed Fathy Abedulrahman, "A comparative study of novel ruthenium(III) and iron(III) complexes containing uracil; docking and biological studies", Elsevier Inc., 2023
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Ahmed Mohamed Fathy Abedulrahman, "Copper (II) complexes based on the mixed ligand system: Study of synthesis, characterization, and stopped-flow kinetics of copper oxidase-mimicking catalytic activity", John Wiley & Sons, 2024
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Department Related Publications
Mohamed Gamal Helmy Mohamed Abdelwahed, "Electronic Properties of Organic Complexes. 2. Reactive Azodyes", Spain, 1993
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Mohamed Gamal Helmy Mohamed Abdelwahed, "Electrical Behaviour of some Azodye Mixed Ligand with Gd3+ and Er3+. b", Peru, 1994
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Atef Mohamed AbdelHamid Ali Hassn, "heterocyclization of thiouracil derivative: synthesis of thiazolopyrimidines, tetrazolopyrimidines and triazolopyrimidines of potential biological activity", elsevier, 2015
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Mohammed Aref Awad Allah Abu Zyd, "Synergistic positive effects of nano barium silicate on the hydration rate and phase composition of alkali-activated slag", Elsevier, 2022
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Ahmed Abdelmoniem Ahmed Amer, "Synthesis and characterization of some calcium aluminate phases from nano-size starting materials", 0366-3175/© 2020 SECV. Published by Elsevier Espana, ˜ S.L.U, 2020
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