Four new heteroleptic Ni(II) complexes with general formula [Ni(dppe)(L)] (dppe = 1,2-bis-(diphenylphosphino)ethane; L = 4-fluoro benzyl cyanide dithiolate (Ni-1); 2-trifluoromethyl benzyl cyanide dithiolate (Ni-2); 3-trifluoromethyl benzyl cyanide dithiolate (Ni-3) and...