Some iron(III) complexes with polydentate Schiff base ligands |
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| Affiliation: | 1. Department of Chemistry, Faculty of Exact Sciences and Informatics ZIANE Achour University, Djelfa, Algeria;2. Department of Chemistry, Faculty of Exact Sciences Echahid Hamma Lakhdar University of El-Oued, Algeria;3. Laboratory of Organic Chemistry and Natural Substance Faculty of Exact Sciences and Informatics, ZIANE Achour University, Djelfa, Algeria;4. Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques CRAPC, BP384, Bou-Ismail, 42004, Tipaza, Algeria;5. QOPNA and LAQV-REQUIMTE, Department of Chemistry University of Aveiro, 3810-193, Aveiro, Portugal;6. Institute of Biomedicine (iBiMED), Department of Medical Sciences University of Aveiro, 3810-193, Aveiro, Portugal;7. CICECO-Aveiro Institute of Material University of Aveiro, 3810-193, Aveiro, Portugal;1. UB - University of Bucharest, Faculty of Chemistry, Department of Organic Chemistry, Biochemistry and Catalysis, 90-92 Şoseaua Panduri, Sector 5, RO-050663, Bucharest, Romania;2. UPB - University “Politehnica” of Bucharest, Faculty of Applied Chemistry and Materials Science, 1-7 Polizu bd., RO-011061, Bucharest, Romania;3. UB - University of Bucharest, Faculty of Biology, Department of Botanic-Microbiology, 1-3 Aleea Portocalilor, RO-60101, Bucharest, Romania;4. ICUB - Research Institute of the University of Bucharest, 91-95 Splaiul Independentei, RO-050095, Bucharest, Romania;5. Institute of Organic Chemistry “C.D. Nenitzescu” of the Romanian Academy, 202B Splaiul Independentei, RO-060023, Bucharest, Romania;6. INFLPR - National Institute for Laser, Plasma and Radiation Physics, Department of Lasers, 409 Atomistilor St., RO-077125, Magurele, Bucharest, Romania;7. University of Limoges, CNRS, ENSCI, SPCTS - UMR 7315, F-87000, Limoges, France;1. Chemistry Department, College of Science, Qassim University, Qassim, Buraydah, Saudi Arabia;2. Chemistry Department, Faculty of Science, Mansoura University, 35516 Mansoura, Egypt;3. Hormones Department, Medical Research Division, National Research Centre, Dokki, Giza, 12622, Egypt;4. Stem Cells Lab, Center of Excellence for Advanced Sciences, National Research Centre, Dokki, Giza 12622, Egypt;1. Departamento de Química Física, Facultad de Ciencias Ambientales y Bioquímica, and INAMOL, Universidad de Castilla-La Mancha, Avenida Carlos III, S/N, 45071 Toledo, Spain;2. Division of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan;1. Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;2. Department of Chemistry, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland;3. Medical Biotechnology Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications (SRTA-City), Egypt;4. Department of Drug Design, Groningen Research Institute of Pharmacy, University of Groningen, 9713 AV Groningen, The Netherlands;5. Department of Pharmaceutical Technology, Faculty of Pharmacy, Kaferelsheikh University, Kaferelsheikh P.O. Box 33516, Egypt;6. Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt;7. Department of Chemistry, Faculty of Science, Mansura University, Mansura 35516, Egypt |
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| Abstract: | The iron(III) complexes of three Schiff base ligands are studied as their chloride or perchlorate salts and their electronic spectra, EPR spectra, and electrochemical behavior reported. Two of these ligands are formed from reaction between salicylaldehyde and 9 or 12-membered tri- or tetraazalkanes. EPR evidence indicates that one of the complexes, [1,12-bis(2-hydroxybenzylidene)-(1,4,9,12-tetraazadodec- 6-ene)iron(III)]perchlorate-1,5-water, is a spin-crossover species containing both high-spin and low-spin iron(III) in equilibrium. The third ligand comes from pyrrole-2-carboxaldehyde and a tetraazadodecane. |
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