Single molecule magnets are compounds that show magnetic properties on the molecular level below certain temperatures. Classic single molecule magnets are often clusters of metal linked together through bridging ligands. The goal for this project was to synthesize coordination compounds of copper(II) with 3-hydroxyimidazole-1-oxide to create potential precursors for single molecule magnets. Using attempts from previous years and knowledge of successful single molecule magnets, a series of syntheses were conducted with 3-hydroxyimidazole-1-oxide (HimzO2) by varying reaction stoichiometry, solvents, and temperature. The new compounds were then allowed to crystallize from the reaction mixture or recrystallized by the solvent vapor deposition method to obtain crystals suitable or X-ray crystallography. Other samples were analyzed using IR spectroscopy and elemental analysis. This process led to the formation of three novel complexes: [Cu(H2O)6][Cu2(SO4)2(imzO2)2], [Cu2(imzO2)3(H2O)2]ClO42H2O, [Cu(imzO2)2(H2O)]2H2O, whose identity was studied using IR spectroscopy and X-ray diffraction. These novel compounds show various modes of bridging of the anionic imzO2 ligand between copper centers forming polymeric inorganic structures. Up to date results seem promising to make polynuclear imidazoledioxido coordination compounds after further modification of the synthetic procedure.

Synthesis of copper complexes with 3-hydroxyimidazole-1-oxide as potential single molecule magnets

255th National Meeting (2018)

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