THE CO-ORDINATION CHEMISTRY OF DIVALENT COBALT, NICKEL AND COPPER Part III. Five-coordinate Cobalt(II) Complexes with Bis(Acetamido)thioether derivatives

Preparation and properties of new cobalt(II) complexes using ligands with OSO sets of donor atoms, viz. bis(N,N-dimethylacetamido)-thioether (TTDA) and bis(N-methyl-N-phenylacetamido)thioether (DTDA), are reported. Magnetic, spectral and non-aqueous conductivity data were obtained. Penta-coordinate structures are proposed for solid CoX2. TTDA (X = Cl−, Br−, I−, NO3 − and NCS-) and CoX2. DTDA (X = Cl−, Br− and NCS-). Similar data for Co(NO3)2. DTDA and Co(ClO4)2. 2TTDA strongly suggest distorted octahedral structures for these. Gaussian analysis on the solid reflectance spectra were done.