Synthesis and single-crystal structure determination of bis(triphenylphosphine) (diisopropyldithiocarbamato)nickel(II) perchlorate chloroform solvate and [1,2-bis(diphenylphosphino-k.P,P')ethane] (diisopropyldithiocarbamato)nickel(II) perchlorate chloroform solvate

Article abstract of DOI:10.1016/0277-5387(95)00376-2

The complexes [Ni(dipdtc)(PPh₃)₂]ClO₄·CHCl₃ (1) and [Ni(dipdtc)dppe] ClO₄·CHCl₃ (2) (dipdtc = diisopropyldithiocarbamate, dppe = 1,2-bis(diphenylphosphino)ethane) have been prepared from the reaction between Ni(dipdtc)₂ (3) and phosphines (PPh₃ and dppe) in CHCl₃-CH₃OH. The crystal structures of 1 and 2 have been determined, showing that both complexes have planar NiS₂P₂ chromophores. Increased bulkiness of the alkyl substituent on the dithiocarbamate increases the span volume of the molecule and forces the lengthening of the C - N distance due to its puckering. Chelating dppe in complex 2 forces a lower P - Ni - P angle and increased S - Ni - S angle compared to complex 1.