Silvio Fallab

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A compound originally prepared by Alfred Werner but structurally misassigned has been shown by three independent X-ray structural analyses to be a hexanuclear species which can now be regarded as Werner's second hexol, his first being that famous for being the first non-carbon containing species to be optically resolved.
Cu2+-complexes with different monodentate ligands PYR, e.g. pyridine, 2,4,6-collidine and imidazole, catalyse the oxidation ofo-phenylenediamine (H2B) to 3,5-dihydro-2-amino-3-iminophenazine (PHEN) by O2. Investigation of the electron paramagnetic resonance during reaction gives interesting details on the function of Cu2+ as a catalyser. The formation of(More)
The possible role of the metabolism of heavy metal ions in the process of ageing is discussed. It is suggested that, during this process, Cu2+ and Fe3+ as strong complexing ions, inhibit the activity of other metal enzymes by replacing their metal ion-activator. The relative stability of Cu2+- and Fe3+-complexes with various chelating compounds related to(More)