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Home    Σύνθεση, χαρακτηρισμός και μελέτη ετερομεταλλικών μονοδιάστατων αλυσίδων σιδήρου/λανθανιδίων με βάσεις Schiff του 2-αμινο-ισοβουτυρικού οξέος  

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Identifier 000397425
Title Σύνθεση, χαρακτηρισμός και μελέτη ετερομεταλλικών μονοδιάστατων αλυσίδων σιδήρου/λανθανιδίων με βάσεις Schiff του 2-αμινο-ισοβουτυρικού οξέος
Alternative Title Synthesis, characterization and study of heterometallic 1-D FE/LN chains upon employment of 2-amino-isobutyric based schiff-base ligands
Author Κολλέτ, Αλεξάνδρα Φωτεινή-Τσαμπίκα
Thesis advisor Μήλιος, Κωνσταντίνος
Reviewer Δημάδης, Κωνσταντίνος
Τρικαλίτης, Παντελής
Abstract In the present work the synthesis, characterization and study of the magnetic properties of four new heterometallic coordination polymers, was investigated. Employment of 2-ΟΗ-naphth (2-hydroxy-1-naphthaldehyde), salicylaldehyde and aibH (2-aminoisobutyric acid) in FeIII/ LnIII (Ln: La, Dy, Ho) chemistry led to the isolation and characterization of four new 1D coordination polymers: {[Fe2IIILaIII(L1)4(NO3)(MeOH)2(H2O)].4.5MeOH}n(1.4.5MeOH), {[Fe6IIIDy2III(L1)12(MeOH)2].MeOH}n(2.MeOH), {[Fe6IIIΗο2III(L1)12(MeOH)2].MeOH}n(3.MeOH), {[Fe4IIILa2III(L2)8(NO3)2(MeOH)4(H2O)2]}n (4), where L12- and L22-- are the Schiff bases formed from the reaction of 2-ΟΗ-naphth/aibH and salicylaldehyde/aibH, respectively. Polymers 2 and 3 are isostructural. Direct current magnetic susceptibility studies were performed on polycrystalline samples of 1-3 showing the presence of dominant antiferromagnetic interactions for 2 and 3, while 1 shows paramagnetic behavior. Furthermore, we were able to calculate the anisotropy axis for each DyIII ion of 2, using the program MAGELLAN.
Language Greek
Subject Coordination polymers
Iron
Lanthanide compounds
Molecular magnetism
Ενώσεις σιδήρου
Μοριακός μαγνητισμός
Πολυμερή συναρμογής
Issue date 2015-11-20
Collection   School/Department--School of Sciences and Engineering--Department of Chemistry--Post-graduate theses
  Type of Work--Post-graduate theses
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