Issue 20, 1973

The chemistry of 2-pyridylamine complexes of cobalt(II) and cobalt(III)

Abstract

Experimental details of the 4T2E‘equilibrium’ for the complex [CoII(tpa)2](ClO4)2(tpa = tri-2-pyridylamine) are given together with temperature-dependence studies of the magnetic behaviour of the hexafluorophosphate salt and of the corresponding 4-, 5-, and 6-methyl-substituted tri-2-pyridylamine complexes of cobalt(II) which prove to be magnetically normal. Factors influencing spin-crossover situations in cobalt(II) chemistry are briefly discussed. New cobalt(III) complexes of the above ligands are reported and some substitution and redox reactions of these complexes are briefly considered. Details of new cobalt(III) complexes of di-2-pyridylamine(dpa) are given, including a material of empirical composition [Co(dpa)2(O2)](ClO4).

Article information

Article type
Paper

J. Chem. Soc., Dalton Trans., 1973, 2172-2176

The chemistry of 2-pyridylamine complexes of cobalt(II) and cobalt(III)

P. F. B. Barnard, J. C. Lancaster, M. E. Fernandopulle and W. R. McWhinnie, J. Chem. Soc., Dalton Trans., 1973, 2172 DOI: 10.1039/DT9730002172

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