ELECTRONIC AND MAGNETIC-PROPERTIES OF SOME DIVALENT METAL SACCHARINATES

The electronic absorption spectra of a series of divalent metal saccharinates of the type [MII(C7H4NO3S)2(H2O)4]·2H2O (with MII = Mn, Fe, Co, Ni, Cu) were recorded and briefly discussed. The obtained 10Dq-values were comparable to that of the respective hexaaqua complexes. Magnetic susceptibility measurements of these samples, in the temperature range between 4.2 and 300 K, were also undertaken and complemented, in some cases, with ESR data. The results of all these measurements could be explained on the basis of octahedral coordination of the metal centres, showing that the axial distortion introduced by the two saccharinate-ligands is very small. © 1990.