1971•Journal of the Chemical Society A Inorganic Physical TheoreticalRequires access
Macrocyclic derivatives of cobalt including some new organometallic complexes
Janet Klapprodt Booth, P. J. Craig, Brian Dobbs, John M. Pratt, G. L. P. Randall, A. Grady Williams
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Abstract
The syntheses of cobalt(II) complexes containing the macrocyclic Schiffs bases NN′-disalicylidene-o-phenylenediamine (saloph), NN′-bis-(2-hydroxy-1-naphthylmethylene)ethylenediamine(napsalen), NN′-bis-(2-hydroxy-1-naphthylmethylene)-o-phenylenediamine (napsaloph), the corresponding acetyl-cobalt(III) and bromo-triphenylphosphine cobalt(III) complexes, and certain acyl-cobalt(III) complexes containing the Schiff's base NN′-disalicylidene-ethylenediamine (salen) are described and their i.r., 1H n.m.r., and u.v.–visible spectra reported. Magnetic susceptibility data indicate that the cobalt(II) complexes are low-spin. It is concluded that the acyl-cobalt(III) complexes as a group may exist in more than one configuration.