Cobalt(II) complexes of five 4-acetamidobenzaldehyde N(4)-substituted thios
emicarbazones have been prepared in EtOH solution and characterized by i.r.
, electronic and n.m.r. spectra, and by magnetic susceptibilities and molar
conductivity measurements. The thiosemicarbazones coordinate as monoanioni
c or neutral ligands via the thiosemicarbazone azomethine nitrogen and thio
ne/thiolato sulfur, the latter by loss of the thioamide hydrogen, N(2)H. Th
e resulting cobalt(II) complexes exhibit a varied stereochemistry.