Magic Square. III. Reverse Isomerization of Tris-Chelate Complexes of Cobalt (III) with Nitrosonaphthols

Abstract

Chromatographic behaviour of individual fac-and mer-isomer of Co (III) tris-chclate complexes with 1, 2-and 2, 1-nitrosonaphthols is studied. Chelating reagents in eluting mixtures with additives of carboxylic acids are retained more strongly than their complexes with cobalt. The method of magic square is used to study the process of fac ⇄ mer reverse isomerization under the influence of photoirradiation and temperature. The application of the magic square method for identification of stereochemical rigidity or nonrigidity of coordination compounds is shown to be possible.