Four bis(N-adamantyldithiocarbamato)metal(II) complexes [M(S2CNHC10H15)2] (M = Ni, Zn, Cd, and Hg) were prepared by metathesis of the corresponding potassium salt, K[S2CNHC10H15]. Characterization of the prepared complexes shown that the presence of only one band in the region 1000/cm in IR spectra can be attributed to a completely symmetrical bonding of the dithiocarbamate ligand, acting in a symmetrical bidentate mode. Also the short thioureide C–N distance in X-ray analysis of Ni complex confirm the delocalization of the pi electrons over the S2CN moiety and strong double bond character.
