Magnetism: A Supramolecular Function
Springer Science & Business Media, Jul 31, 1996 - Science - 660 pages
Molecular magnetism is a new field of research dealing with the synthesis and study of the physical properties of molecular assemblies involving open-shell units. It is essentially interdisciplinary, joining together organic, organometallic and inorganic chemists, as well as theoreticians, physicists and materials scientists.
At the core of research into molecular magnetism lie design and synthesis of new molecular assemblies exhibiting bulk properties such as long-range magnetic ordering or bistability with an hysteresis effect, which confers a memory effect on the system. In such terms, magnetism may be considered a supramolecular function.
The first eight contributions to this volume present the state of the art in organic supramolecular chemistry, emphasising interlocked systems and molecular trees. The following six articles are devoted to molecular materials constructed from organic radicals and transition metal units. Molecular bistability is then focused on, followed by metal-organic and coordination magnetic materials. A new approach to nano-sized particles closes the work.
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2]catenane 2]rotaxane Angew anions anisotropy antiferromagnetic aromatic axial behavior bridging Caneschi catenanes cation centers chains Chem chemical Chemistry clusters complexes components compounds coordination copper(II crown ether crystal structure cyclophane dimensional dimers donor effect electron energy Engl exchange coupling exchange interaction experimental ferromagnetic ferromagnetic coupling ferromagnetic interaction field function Gatteschi geometry groups high-spin hydrogen bonds hysteresis Inorg interlocked intermolecular iron(II Iwamura Kahn lattice layers ligand low temperature macrocyclic magnetic interactions magnetic orbitals magnetic properties magnetic susceptibility metal ions molecular magnetism molecules Mossbauer nitrogen nitronyl nitroxide nutation observed obtained octahedral organic orthogonal oxidation paramagnetic parameters Phys polymer porphyrin quantum radical reaction redox ring room temperature rotaxanes Scheme self-assembly Sessoli shown in Figure shows solid solution spectra spectroscopy spectrum spin density spin transition spin-crossover Stoddart studies supramolecular supramolecular chemistry symmetry synthesis temperature dependence transition metal triazole triplet units X-ray
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