Structural versatility of the malonate ligand as a tool for crystal engineering in the design of molecular magnets

摘要: The synthesis of ferro- and ferri-magnetic systems with a tunable Tc three-dimensional (3-D) ordering from molecular precursors implying transition metal ions is one the active branches inorganic chemistry. nature interactions between (or radicals) not so easy to grasp by synthetic chemists working in this field since it may be either electrostatic (orbital) or magnetic (mainly dipolar). Therefore, fulfilling necessary requirements present expected properties are design on paper realize beaker. In work we show how one-, two- materials can strongly benefit use crystal engineering techniques, which give rise structures different shapes, these differences properties. We will focus networks constructed assembling malonate ligands centres. idea using (dianion propanedioic acid, H2mal) that coordination modes binds. Extended dimensionalities (1-D), two (2-D) three chemically malonate-bridged metallic complexes. These polymers behave as ferro-, ferri- canted antiferro-magnets. currently trying obtain analogous compounds magnetically anisotropic ions, such cobalt(II), order explore structural influence case control spatial arrangement building blocks paramount importance determining strength interaction. possibility controlling shape depends bond ion supramolecular stacking hydrogen bonding.