Mononuclear and polynuclear complexes of cobalt(II) carboxylates with pyridine and other heterocyclic bases
- 1 January 1976
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 16,p. 1634-1640
- https://doi.org/10.1039/dt9760001634
Abstract
Adducts of cobalt(II) carboxylates with pyridine and related ligands have been prepared, their electronic spectra assigned, and their magnetic properties investigated. The complex [Co(py)2(O2CPh)2](py = pyridine) behaves as a six-co-ordinate species whose electronic spectrum shows retragonal splitting; [Co(2-Mepy)(O2CPh)2] has the properties of a trigonal-bipyramidal five-co-ordinate high-spin complex. The green complexes [Co2(quin)2-(O2CR)4](R = Ph or C6H4NO2-2; quin = quinoline) are antiferromagnetic binuclear species with square-pyramidal five-co-ordination. A slate-blue form of [Co(quin)(O2CC6H4NO2-2)2] behaves as a slightly antiferro-magnetic polymer. The complexes [Co3(quin)2(O2CR)6](R = Ph or C6H4NO2-2) contain a linear array of two trigonal-bipyramidal and one octahedral cobalt atoms and are not appreciably antiferromagnetic.Keywords
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