Synthesis and characterisation of {CoIII2DyIII2} and {VIII2DyIII2} Single Molecule Magnets

Identifier:  TFG:1363

Handle: https://hdl.handle.net/20.500.11797/TFG1363

Authors:  Montiel Campanón, Luis

Abstract:
Single Molecule Magnets (SMMs) are magnetic materials where the magnetic domains comprise individual molecules. This feature can lead to the development of applications related to high-density digital information storage. In this project, new tetranuclear butterfly complexes [TMIII2DyIII2(μ3-OMe)2(amino-polyalcohol)2(carboxylic acid)4(MeOH)4](NO3)2 {TM = Co and V} have been tried to synthesize utilizing different amino-polyalcohols and carboxylic acids as bridging ligands. These complexes, which may display SMM behaviour, have been characterized by single crystal X-Ray diffraction, when possible, and IR spectroscopy. [CoIII2DyIII2(μ3-OMe)2(BDEA*)2(O2CPh)4(MeOH)4](NO3)2 is the only complex which has been able to crystallize as single crystals and further characterisation of the molecule has been carried out. As for the other butterfly complexes, the synthesis of the other {CoIII2DyIII2} complexes has been verified by IR spectroscopy, while none of {VIII2DyIII2} complexes have been successfully synthesized. *BDEA= doubly deprotonated N-Buthyldiethanolamine