Tetramethylenedithiocarbamates of the early transition metals

Abstract

Tetrakistetramethylenedithiocarbamatometals M[S₂CN(CH₂)₄]₄(M = Nb^IV, Mo^IV, and W^IV) have been prepared by reactions of ammonium tetramethylenedithiocarbamate and the respective metal tetrachloride in acetonitrile. The pentakis-compound Ta[S₂CN(CH₂)₄]₅ was also prepared. Spectroscopic (u.v., visible, and i.r.) and magnetic susceptibility studies were carried out on the compounds. The niobium, molybdenum, and tungsten compounds appear to be eight-co-ordinate.