Coordination chemistry of arylhydrazones of methylene active compounds

The methods of synthesis of arylhydrazones of methylene active compounds (AHMACs) as well as the preparation and properties of their metal complexes are reviewed. Nuclearity, supramolecular arrangements and other features (e.g., solubility, redox potentials, catalytic and antibacterial activities) of the complexes can be controlled by the introduction of different substituents to the methylene active and/or the aromatic fragments of AHMAC and by variation of metal-ions used in the synthesis.

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► Arylhydrazones of methylene active compounds (AHMACs) are valuable ligands and building blocks for metal-organic networks.
► Mono-, multi- and hetero-nuclear complexes can be synthesized from AHMACs.
► AHMAC complexes can be applied in supramolecular chemistry, as catalysts, molecular switches or media for optical storage.