Zeitschrift für Naturforschung B · 1971 · 18 citations · 0 references
Natural SciencesChemistryMagnetic MaterialsSpectroscopySupramolecular ChemistryCoordination ChemistryElectron Paramagnetic ResonanceLigand BindingMagnetism Of Inorganic CompoundsMetal-ligand BondingTransition Metal ComplexesCoordination Compound MagnetismIntermolecular Metal-ligand InteractionsMagnetic Properties Of Coordination ComplexesMagnetic Properties Of Transition Metal ComplexesMagnetism Of Transition Metal ComplexesParamagnetic ComplexesParamagnetism In Coordination Compounds
A series of complexes formed between metals and the stable free radicals 2,2,6,6-tetramethylpiperidine-1-oxyl-4- (N-salicylaldimine) and 2,2,6,6-tetramethylpiperidone (4) -1-oxyl-thiosemicarba-zone has been prepared. The magnetic moments and the epr spectra of the complexes have been investigated. Some of the complexes show a temperature dependent interaction between the radicalic nitroxyl groups of the ligands. No interaction was found, however, between the metal ion and the unpaired electrons of the ligands.