Unit:
Κατεύθυνση Ανόργανη Χημεία και ΤεχνολογίαLibrary of the School of Science
Author:
Moutzouris Nikolaos
Supervisors info:
Παπαευσταθίου Ιωάννης, Αναπληρωτής Καθηγητής, Τμήμα Χημείας, Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών
Original Title:
Σύνθεση και Χαρακτηρισμός Οξαλαμιδικών Μεταλλο-Υποκαταστατών ως Πρόδρομων Αντιδραστηρίων για τη Σύνθεση Μεταλλο-Οργανικών Κατασκευών
Translated title:
Synthesis and characterization of Oxalamide Based Metallo-ligands as Starting Materials for the Synthesis of Metal-Organic Frameworks
Summary:
Metallo-Organic Frameworks are porous crystalline materials which result from the binding of metal ions or metal clusters and organic molecules, which are called bridging ligands to form mono-, di-, and three-dimensional polymeric periodic networks, in other words they are polymeric metal complexes possessing potentially empty spaces. Of particular interest are some Metal-Organic Frameworks based on metallo-ligands, i.e., metal complexes which act as bridging ligands.
In this thesis, we investigated the possibility of developing new metallo-ligands based on oxalamide molecules. To this end, we synthesized and characterized a new dicarboxylic ligand based on an oxalamide that possess a total of six acidic protons. With this ligand we synthesized and characterized two new complexes that may be used as a metallo-ligands for the synthesis of Metal-Organic Frameworks. The first metallo-ligand is based on the tetra-anion of the organic molecule and is a binuclear complex of divalent copper with the oxalamide ligand retaining the trans configuration and the two carboxyl groups neutral. The second metallo-ligand based on the hexa-anion of the organic molecule and is a mononuclear complex of divalent nickel with the oxalamide ligand adopting the cis configuration with both deprotonated carboxyl groups which are located on its periphery not being involved in the complexation with the divalent nickel. Both complexes were characterized by x-ray crystallography on single crystal and powder were studied by infrared spectroscopy, thermal techniques and 1H-NMR
Main subject category:
Science
Keywords:
Metal-Organic Frameworks, Metallo-ligands, Metal complexes as ligands, Crystal structure, Thermal stability
File:
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Master_Moutzouris.pdf
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